diff options
author | glebius <glebius@FreeBSD.org> | 2016-12-05 23:23:13 +0000 |
---|---|---|
committer | glebius <glebius@FreeBSD.org> | 2016-12-05 23:23:13 +0000 |
commit | f2d5dab6721a6764a879d161af1821e2a4ade360 (patch) | |
tree | d852fdf6026c2a8a87d7527cad8d532b3237bb04 | |
parent | 1a98a9339d87a4228b301e75f364e837eda8f7b5 (diff) | |
download | FreeBSD-src-f2d5dab6721a6764a879d161af1821e2a4ade360.zip FreeBSD-src-f2d5dab6721a6764a879d161af1821e2a4ade360.tar.gz |
Update tzdata to 2016i.
Note: because of what appears to be a missing MFC to stable branches,
these patches were generated by doing:
% rsync -av stable/10/contrib/tzdata releng/10.x/contrib/tzdata
% svn add releng/10.x/contrib/tzdata
Errata Notice: EN-16:19
Submitted by: gjb
Approved by: so
-rw-r--r-- | contrib/tzdata/CONTRIBUTING | 73 | ||||
-rw-r--r-- | contrib/tzdata/LICENSE | 4 | ||||
-rw-r--r-- | contrib/tzdata/Makefile | 793 | ||||
-rw-r--r-- | contrib/tzdata/NEWS | 3782 | ||||
-rw-r--r-- | contrib/tzdata/README | 71 | ||||
-rw-r--r-- | contrib/tzdata/Theory | 840 | ||||
-rw-r--r-- | contrib/tzdata/africa | 430 | ||||
-rw-r--r-- | contrib/tzdata/antarctica | 160 | ||||
-rw-r--r-- | contrib/tzdata/asia | 986 | ||||
-rw-r--r-- | contrib/tzdata/australasia | 307 | ||||
-rw-r--r-- | contrib/tzdata/backward | 6 | ||||
-rw-r--r-- | contrib/tzdata/backzone | 677 | ||||
-rw-r--r-- | contrib/tzdata/checklinks.awk | 48 | ||||
-rw-r--r-- | contrib/tzdata/checktab.awk | 177 | ||||
-rw-r--r-- | contrib/tzdata/etcetera | 74 | ||||
-rw-r--r-- | contrib/tzdata/europe | 1505 | ||||
-rw-r--r-- | contrib/tzdata/factory | 7 | ||||
-rw-r--r-- | contrib/tzdata/leap-seconds.list | 25 | ||||
-rw-r--r-- | contrib/tzdata/leapseconds | 78 | ||||
-rw-r--r-- | contrib/tzdata/leapseconds.awk | 76 | ||||
-rw-r--r-- | contrib/tzdata/northamerica | 817 | ||||
-rw-r--r-- | contrib/tzdata/southamerica | 364 | ||||
-rw-r--r-- | contrib/tzdata/version | 1 | ||||
-rw-r--r-- | contrib/tzdata/zone.tab | 303 | ||||
-rw-r--r-- | contrib/tzdata/zone1970.tab | 310 | ||||
-rwxr-xr-x | contrib/tzdata/zoneinfo2tdf.pl | 52 |
26 files changed, 9761 insertions, 2205 deletions
diff --git a/contrib/tzdata/CONTRIBUTING b/contrib/tzdata/CONTRIBUTING new file mode 100644 index 0000000..e40102e --- /dev/null +++ b/contrib/tzdata/CONTRIBUTING @@ -0,0 +1,73 @@ +Contributing to the tz code and data + +The time zone database is by no means authoritative: governments +change timekeeping rules erratically and sometimes with little +warning, the data entries do not cover all of civil time before +1970, and undoubtedly errors remain in the code and data. Feel +free to fill gaps or fix mistakes, and please email improvements +to tz@iana.org for use in the future. + +To email small changes, please run a POSIX shell command like +'diff -u old/europe new/europe >myfix.patch', and attach +myfix.patch to the email. + +For more-elaborate changes, please read the Theory file and browse +the mailing list archives <http://mm.icann.org/pipermail/tz/> for +examples of patches that tend to work well. Ideally, additions to +data should contain commentary citing reliable sources as +justification. + +Please submit changes against either the latest release in +<ftp://ftp.iana.org/tz/> or the master branch of the experimental +Git repository. If you use Git the following workflow may be helpful: + + * Copy the experimental repository. + + git clone https://github.com/eggert/tz.git + cd tz + + * Get current with the master branch. + + git checkout master + git pull + + * Switch to a new branch for the changes. Choose a different + branch name for each change set. + + git checkout -b mybranch + + * Edit source files. Include commentary that justifies the + changes by citing reliable sources. + + * Debug the changes, e.g.: + + make check + make install + ./zdump -v America/Los_Angeles + + * For each separable change, commit it in the new branch, e.g.: + + git add northamerica + git commit + + See recent 'git log' output for the commit-message style. + + * Create patch files 0001-*, 0002-*, ... + + git format-patch master + + * After reviewing the patch files, send the patches to tz@iana.org + for others to review. + + git send-email master + + * Start anew by getting current with the master branch again + (the second step above). + +Please do not create issues or pull requests on GitHub, as the +proper procedure for proposing and distributing patches is via +email as illustrated above. + +----- + +This file is in the public domain. diff --git a/contrib/tzdata/LICENSE b/contrib/tzdata/LICENSE new file mode 100644 index 0000000..148eb23 --- /dev/null +++ b/contrib/tzdata/LICENSE @@ -0,0 +1,4 @@ +With a few exceptions, all files in the tz code and data (including +this one) are in the public domain. The exceptions are date.c, +newstrftime.3, and strftime.c, which contain material derived from BSD +and which use the BSD 3-clause license. diff --git a/contrib/tzdata/Makefile b/contrib/tzdata/Makefile new file mode 100644 index 0000000..74b950c --- /dev/null +++ b/contrib/tzdata/Makefile @@ -0,0 +1,793 @@ +# This file is in the public domain, so clarified as of +# 2009-05-17 by Arthur David Olson. + +# Package name for the code distribution. +PACKAGE= tzcode + +# Version number for the distribution, overridden in the 'tarballs' rule below. +VERSION= unknown + +# Email address for bug reports. +BUGEMAIL= tz@iana.org + +# Change the line below for your time zone (after finding the zone you want in +# the time zone files, or adding it to a time zone file). +# Alternately, if you discover you've got the wrong time zone, you can just +# zic -l rightzone +# to correct things. +# Use the command +# make zonenames +# to get a list of the values you can use for LOCALTIME. + +LOCALTIME= GMT + +# If you want something other than Eastern United States time as a template +# for handling POSIX-style time zone environment variables, +# change the line below (after finding the zone you want in the +# time zone files, or adding it to a time zone file). +# (When a POSIX-style environment variable is handled, the rules in the +# template file are used to determine "spring forward" and "fall back" days and +# times; the environment variable itself specifies UT offsets of standard and +# summer time.) +# Alternately, if you discover you've got the wrong time zone, you can just +# zic -p rightzone +# to correct things. +# Use the command +# make zonenames +# to get a list of the values you can use for POSIXRULES. +# If you want POSIX compatibility, use "America/New_York". + +POSIXRULES= America/New_York + +# Also see TZDEFRULESTRING below, which takes effect only +# if the time zone files cannot be accessed. + +# Everything gets put in subdirectories of. . . + +TOPDIR= /usr/local + +# "Compiled" time zone information is placed in the "TZDIR" directory +# (and subdirectories). +# Use an absolute path name for TZDIR unless you're just testing the software. + +TZDIR_BASENAME= zoneinfo +TZDIR= $(TOPDIR)/etc/$(TZDIR_BASENAME) + +# Types to try, as an alternative to time_t. int64_t should be first. +TIME_T_ALTERNATIVES= int64_t int32_t uint32_t uint64_t + +# The "tzselect", "zic", and "zdump" commands get installed in. . . + +ETCDIR= $(TOPDIR)/etc + +# If you "make INSTALL", the "date" command gets installed in. . . + +BINDIR= $(TOPDIR)/bin + +# Manual pages go in subdirectories of. . . + +MANDIR= $(TOPDIR)/man + +# Library functions are put in an archive in LIBDIR. + +LIBDIR= $(TOPDIR)/lib + +# If you always want time values interpreted as "seconds since the epoch +# (not counting leap seconds)", use +# REDO= posix_only +# below. If you always want right time values interpreted as "seconds since +# the epoch" (counting leap seconds)", use +# REDO= right_only +# below. If you want both sets of data available, with leap seconds not +# counted normally, use +# REDO= posix_right +# below. If you want both sets of data available, with leap seconds counted +# normally, use +# REDO= right_posix +# below. POSIX mandates that leap seconds not be counted; for compatibility +# with it, use "posix_only" or "posix_right". + +REDO= posix_right + +# If you want out-of-scope and often-wrong data from the file 'backzone', use +# PACKRATDATA= backzone +# To omit this data, use +# PACKRATDATA= + +PACKRATDATA= + +# Since "." may not be in PATH... + +YEARISTYPE= ./yearistype + +# Non-default libraries needed to link. +LDLIBS= + +# Add the following to the end of the "CFLAGS=" line as needed. +# -DBIG_BANG=-9999999LL if the Big Bang occurred at time -9999999 (see zic.c) +# -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r +# -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows) +# -DHAVE_DOS_FILE_NAMES if file names have drive specifiers etc. (MS-DOS) +# -DHAVE_GETTEXT=1 if 'gettext' works (e.g., GNU/Linux, FreeBSD, Solaris) +# -DHAVE_INCOMPATIBLE_CTIME_R=1 if your system's time.h declares +# ctime_r and asctime_r incompatibly with the POSIX standard +# (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined). +# -DHAVE_INTTYPES_H=1 if you have a pre-C99 compiler with "inttypes.h" +# -DHAVE_LINK=0 if your system lacks a link function +# -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function +# -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz +# This defaults to 1 if a working localtime_rz seems to be available. +# localtime_rz can make zdump significantly faster, but is nonstandard. +# -DHAVE_POSIX_DECLS=0 if your system's include files do not declare +# functions like 'link' or variables like 'tzname' required by POSIX +# -DHAVE_STDINT_H=1 if you have a pre-C99 compiler with "stdint.h" +# -DHAVE_STRFTIME_L=1 if <time.h> declares locale_t and strftime_l +# This defaults to 0 if _POSIX_VERSION < 200809, 1 otherwise. +# -DHAVE_STRDUP=0 if your system lacks the strdup function +# -DHAVE_SYMLINK=0 if your system lacks the symlink function +# -DHAVE_SYS_STAT_H=0 if your compiler lacks a "sys/stat.h" +# -DHAVE_SYS_WAIT_H=0 if your compiler lacks a "sys/wait.h" +# -DHAVE_TZSET=0 if your system lacks a tzset function +# -DHAVE_UNISTD_H=0 if your compiler lacks a "unistd.h" (Microsoft C++ 7?) +# -DEPOCH_LOCAL=1 if the 'time' function returns local time not UT +# -DEPOCH_OFFSET=N if the 'time' function returns a value N greater +# than what POSIX specifies, assuming local time is UT. +# For example, N is 252460800 on AmigaOS. +# -DNO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU=1 +# if you do not want run time warnings about formats that may cause +# year 2000 grief +# -Dssize_t=long on ancient hosts that lack ssize_t +# -DTHREAD_SAFE=1 to make localtime.c thread-safe, as POSIX requires; +# not needed by the main-program tz code, which is single-threaded. +# Append other compiler flags as needed, e.g., -pthread on GNU/Linux. +# -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t +# -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz" +# -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory; +# the default is system-supplied, typically "/usr/lib/locale" +# -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified +# DST transitions if the time zone files cannot be accessed +# -DUNINIT_TRAP=1 if reading uninitialized storage can cause problems +# other than simply getting garbage data +# -DUSE_LTZ=0 to build zdump with the system time zone library +# Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below. +# -DZIC_MAX_ABBR_LEN_WO_WARN=3 +# (or some other number) to set the maximum time zone abbreviation length +# that zic will accept without a warning (the default is 6) +# $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking +GCC_DEBUG_FLAGS = -Dlint -g3 -O3 -fno-common -fstrict-aliasing \ + -Wall -Wextra \ + -Wbad-function-cast -Wcast-align -Wdate-time \ + -Wdeclaration-after-statement \ + -Wdouble-promotion \ + -Wformat=2 -Winit-self -Wjump-misses-init \ + -Wlogical-op -Wmissing-prototypes -Wnested-externs \ + -Wold-style-definition -Woverlength-strings -Wpointer-arith \ + -Wshadow -Wstrict-prototypes -Wsuggest-attribute=const \ + -Wsuggest-attribute=format -Wsuggest-attribute=noreturn \ + -Wsuggest-attribute=pure -Wtrampolines \ + -Wunused -Wwrite-strings \ + -Wno-address -Wno-format-nonliteral -Wno-sign-compare \ + -Wno-type-limits -Wno-unused-parameter +# +# If you want to use System V compatibility code, add +# -DUSG_COMPAT +# to the end of the "CFLAGS=" line. This arrange for "timezone" and "daylight" +# variables to be kept up-to-date by the time conversion functions. Neither +# "timezone" nor "daylight" is described in X3J11's work. +# +# If your system has a "GMT offset" field in its "struct tm"s +# (or if you decide to add such a field in your system's "time.h" file), +# add the name to a define such as +# -DTM_GMTOFF=tm_gmtoff +# to the end of the "CFLAGS=" line. If not defined, the code attempts to +# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this. +# Similarly, if your system has a "zone abbreviation" field, define +# -DTM_ZONE=tm_zone +# and define NO_TM_ZONE to suppress any guessing. These two fields are not +# required by POSIX, but are widely available on GNU/Linux and BSD systems. +# +# If you want functions that were inspired by early versions of X3J11's work, +# add +# -DSTD_INSPIRED +# to the end of the "CFLAGS=" line. This arranges for the functions +# "tzsetwall", "offtime", "timelocal", "timegm", "timeoff", +# "posix2time", and "time2posix" to be added to the time conversion library. +# "tzsetwall" is like "tzset" except that it arranges for local wall clock +# time (rather than the time specified in the TZ environment variable) +# to be used. +# "offtime" is like "gmtime" except that it accepts a second (long) argument +# that gives an offset to add to the time_t when converting it. +# "timelocal" is equivalent to "mktime". +# "timegm" is like "timelocal" except that it turns a struct tm into +# a time_t using UT (rather than local time as "timelocal" does). +# "timeoff" is like "timegm" except that it accepts a second (long) argument +# that gives an offset to use when converting to a time_t. +# "posix2time" and "time2posix" are described in an included manual page. +# X3J11's work does not describe any of these functions. +# Sun has provided "tzsetwall", "timelocal", and "timegm" in SunOS 4.0. +# These functions may well disappear in future releases of the time +# conversion package. +# +# If you don't want functions that were inspired by NetBSD, add +# -DNETBSD_INSPIRED=0 +# to the end of the "CFLAGS=" line. Otherwise, the functions +# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the +# time library, and if STD_INSPIRED is also defined the functions +# "posix2time_z" and "time2posix_z" are added as well. +# The functions ending in "_z" (or "_rz") are like their unsuffixed +# (or suffixed-by-"_r") counterparts, except with an extra first +# argument of opaque type timezone_t that specifies the time zone. +# "tzalloc" allocates a timezone_t value, and "tzfree" frees it. +# +# If you want to allocate state structures in localtime, add +# -DALL_STATE +# to the end of the "CFLAGS=" line. Storage is obtained by calling malloc. +# +# If you want an "altzone" variable (a la System V Release 3.1), add +# -DALTZONE +# to the end of the "CFLAGS=" line. +# This variable is not described in X3J11's work. +# +# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put +# out by the National Institute of Standards and Technology +# which claims to test C and Posix conformance. If you want to pass PCTS, add +# -DPCTS +# to the end of the "CFLAGS=" line. +# +# If you want strict compliance with XPG4 as of 1994-04-09, add +# -DXPG4_1994_04_09 +# to the end of the "CFLAGS=" line. This causes "strftime" to always return +# 53 as a week number (rather than 52 or 53) for those days in January that +# before the first Monday in January when a "%V" format is used and January 1 +# falls on a Friday, Saturday, or Sunday. + +CFLAGS= + +# Linker flags. Default to $(LFLAGS) for backwards compatibility +# to release 2012h and earlier. + +LDFLAGS= $(LFLAGS) + +# For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in +# submake command lines. The default is no leap seconds. + +LEAPSECONDS= + +# The zic command and its arguments. + +zic= ./zic +ZIC= $(zic) $(ZFLAGS) + +ZFLAGS= + +# How to use zic to install tz binary files. + +ZIC_INSTALL= $(ZIC) -y $(YEARISTYPE) -d $(DESTDIR)$(TZDIR) $(LEAPSECONDS) + +# The name of a Posix-compliant 'awk' on your system. +AWK= awk + +# The full path name of a Posix-compliant shell, preferably one that supports +# the Korn shell's 'select' statement as an extension. +# These days, Bash is the most popular. +# It should be OK to set this to /bin/sh, on platforms where /bin/sh +# lacks 'select' or doesn't completely conform to Posix, but /bin/bash +# is typically nicer if it works. +KSHELL= /bin/bash + +# The path where SGML DTDs are kept and the catalog file(s) to use when +# validating. The default should work on both Debian and Red Hat. +SGML_TOPDIR= /usr +SGML_DTDDIR= $(SGML_TOPDIR)/share/xml/w3c-sgml-lib/schema/dtd +SGML_SEARCH_PATH= $(SGML_DTDDIR)/REC-html401-19991224 +SGML_CATALOG_FILES= \ + $(SGML_TOPDIR)/share/doc/w3-recs/html/www.w3.org/TR/1999/REC-html401-19991224/HTML4.cat:$(SGML_TOPDIR)/share/sgml/html/4.01/HTML4.cat + +# The name, arguments and environment of a program to validate your web pages. +# See <http://openjade.sourceforge.net/doc/> for a validator, and +# <https://validator.w3.org/source/> for a validation library. +VALIDATE = nsgmls +VALIDATE_FLAGS = -s -B -wall -wno-unused-param +VALIDATE_ENV = \ + SGML_CATALOG_FILES=$(SGML_CATALOG_FILES) \ + SGML_SEARCH_PATH=$(SGML_SEARCH_PATH) \ + SP_CHARSET_FIXED=YES \ + SP_ENCODING=UTF-8 + +# This expensive test requires USE_LTZ. +# To suppress it, define this macro to be empty. +CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives + +# SAFE_CHAR is a regular expression that matches a safe character. +# Some parts of this distribution are limited to safe characters; +# others can use any UTF-8 character. +# For now, the safe characters are a safe subset of ASCII. +# The caller must set the shell variable 'sharp' to the character '#', +# since Makefile macros cannot contain '#'. +# TAB_CHAR is a single tab character, in single quotes. +TAB_CHAR= ' ' +SAFE_CHARSET1= $(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@' +SAFE_CHARSET2= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`' +SAFE_CHARSET3= 'abcdefghijklmnopqrstuvwxyz{|}~' +SAFE_CHARSET= $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3) +SAFE_CHAR= '[]'$(SAFE_CHARSET)'-]' + +# OK_CHAR matches any character allowed in the distributed files. +# This is the same as SAFE_CHAR, except that multibyte letters are +# also allowed so that commentary can contain people's names and quote +# non-English sources. For non-letters the sources are limited to +# ASCII renderings for the convenience of maintainers whose text editors +# mishandle UTF-8 by default (e.g., XEmacs 21.4.22). +OK_CHAR= '[][:alpha:]'$(SAFE_CHARSET)'-]' + +# SAFE_LINE matches a line of safe characters. +# SAFE_SHARP_LINE is similar, except any OK character can follow '#'; +# this is so that comments can contain non-ASCII characters. +# OK_LINE matches a line of OK characters. +SAFE_LINE= '^'$(SAFE_CHAR)'*$$' +SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$' +OK_LINE= '^'$(OK_CHAR)'*$$' + +# Flags to give 'tar' when making a distribution. +# Try to use flags appropriate for GNU tar. +GNUTARFLAGS= --numeric-owner --owner=0 --group=0 --mode=go+u,go-w --sort=name +TARFLAGS= `if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \ + then echo $(GNUTARFLAGS); \ + else :; \ + fi` + +# Flags to give 'gzip' when making a distribution. +GZIPFLAGS= -9n + +############################################################################### + +#MAKE= make + +cc= cc +CC= $(cc) -DTZDIR=\"$(TZDIR)\" + +AR= ar + +# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib. +RANLIB= : + +TZCOBJS= zic.o +TZDOBJS= zdump.o localtime.o asctime.o +DATEOBJS= date.o localtime.o strftime.o asctime.o +LIBSRCS= localtime.c asctime.c difftime.c +LIBOBJS= localtime.o asctime.o difftime.o +HEADERS= tzfile.h private.h +NONLIBSRCS= zic.c zdump.c +NEWUCBSRCS= date.c strftime.c +SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \ + tzselect.ksh workman.sh +MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \ + tzfile.5 tzselect.8 zic.8 zdump.8 +MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \ + time2posix.3.txt \ + tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \ + date.1.txt +COMMON= CONTRIBUTING LICENSE Makefile NEWS README Theory version +WEB_PAGES= tz-art.htm tz-how-to.html tz-link.htm +DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES) +PRIMARY_YDATA= africa antarctica asia australasia \ + europe northamerica southamerica +YDATA= $(PRIMARY_YDATA) pacificnew etcetera backward +NDATA= systemv factory +TDATA= $(YDATA) $(NDATA) +ZONETABLES= zone1970.tab zone.tab +TABDATA= iso3166.tab leapseconds $(ZONETABLES) +LEAP_DEPS= leapseconds.awk leap-seconds.list +DATA= $(YDATA) $(NDATA) backzone $(TABDATA) \ + leap-seconds.list yearistype.sh +AWK_SCRIPTS= checklinks.awk checktab.awk leapseconds.awk +MISC= $(AWK_SCRIPTS) zoneinfo2tdf.pl +TZS_YEAR= 2050 +TZS= to$(TZS_YEAR).tzs +TZS_NEW= to$(TZS_YEAR)new.tzs +TZS_DEPS= $(PRIMARY_YDATA) asctime.c localtime.c \ + private.h tzfile.h zdump.c zic.c +ENCHILADA= $(COMMON) $(DOCS) $(SOURCES) $(DATA) $(MISC) $(TZS) + +# Consult these files when deciding whether to rebuild the 'version' file. +# This list is not the same as the output of 'git ls-files', since +# .gitignore is not distributed. +VERSION_DEPS= \ + CONTRIBUTING LICENSE Makefile NEWS README Theory \ + africa antarctica asctime.c asia australasia \ + backward backzone \ + checklinks.awk checktab.awk \ + date.1 date.c difftime.c \ + etcetera europe factory iso3166.tab \ + leap-seconds.list leapseconds.awk localtime.c \ + newctime.3 newstrftime.3 newtzset.3 northamerica \ + pacificnew private.h \ + southamerica strftime.c systemv \ + time2posix.3 tz-art.htm tz-how-to.html tz-link.htm \ + tzfile.5 tzfile.h tzselect.8 tzselect.ksh \ + workman.sh yearistype.sh \ + zdump.8 zdump.c zic.8 zic.c \ + zone.tab zone1970.tab zoneinfo2tdf.pl + +# And for the benefit of csh users on systems that assume the user +# shell should be used to handle commands in Makefiles. . . + +SHELL= /bin/sh + +all: tzselect yearistype zic zdump libtz.a $(TABDATA) + +ALL: all date $(ENCHILADA) + +install: all $(DATA) $(REDO) $(MANS) + mkdir -p $(DESTDIR)$(ETCDIR) $(DESTDIR)$(TZDIR) \ + $(DESTDIR)$(LIBDIR) \ + $(DESTDIR)$(MANDIR)/man3 $(DESTDIR)$(MANDIR)/man5 \ + $(DESTDIR)$(MANDIR)/man8 + $(ZIC_INSTALL) -l $(LOCALTIME) -p $(POSIXRULES) + cp -f iso3166.tab $(ZONETABLES) $(DESTDIR)$(TZDIR)/. + cp tzselect zic zdump $(DESTDIR)$(ETCDIR)/. + cp libtz.a $(DESTDIR)$(LIBDIR)/. + $(RANLIB) $(DESTDIR)$(LIBDIR)/libtz.a + cp -f newctime.3 newtzset.3 $(DESTDIR)$(MANDIR)/man3/. + cp -f tzfile.5 $(DESTDIR)$(MANDIR)/man5/. + cp -f tzselect.8 zdump.8 zic.8 $(DESTDIR)$(MANDIR)/man8/. + +INSTALL: ALL install date.1 + mkdir -p $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man1 + cp date $(DESTDIR)$(BINDIR)/. + cp -f date.1 $(DESTDIR)$(MANDIR)/man1/. + +version: $(VERSION_DEPS) + { (type git) >/dev/null 2>&1 && \ + V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \ + --abbrev=7 --dirty` || \ + V=$(VERSION); } && \ + printf '%s\n' "$$V" >$@.out + mv $@.out $@ + +version.h: version + VERSION=`cat version` && printf '%s\n' \ + 'static char const PKGVERSION[]="($(PACKAGE)) ";' \ + "static char const TZVERSION[]=\"$$VERSION\";" \ + 'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \ + >$@.out + mv $@.out $@ + +zdump: $(TZDOBJS) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS) + +zic: $(TZCOBJS) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS) + +yearistype: yearistype.sh + cp yearistype.sh yearistype + chmod +x yearistype + +leapseconds: $(LEAP_DEPS) + $(AWK) -f leapseconds.awk leap-seconds.list >$@.out + mv $@.out $@ + +# Arguments to pass to submakes of install_data. +# They can be overridden by later submake arguments. +INSTALLARGS = \ + DESTDIR=$(DESTDIR) \ + LEAPSECONDS='$(LEAPSECONDS)' \ + PACKRATDATA='$(PACKRATDATA)' \ + TZDIR=$(TZDIR) \ + YEARISTYPE=$(YEARISTYPE) \ + ZIC='$(ZIC)' + +# 'make install_data' installs one set of tz binary files. +# It can be tailored by setting LEAPSECONDS, PACKRATDATA, etc. +install_data: zic leapseconds yearistype $(PACKRATDATA) $(TDATA) + $(ZIC_INSTALL) $(TDATA) + $(AWK) '/^Rule/' $(TDATA) | $(ZIC_INSTALL) - $(PACKRATDATA) + +posix_only: + $(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data + +right_only: + $(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \ + install_data + +# In earlier versions of this makefile, the other two directories were +# subdirectories of $(TZDIR). However, this led to configuration errors. +# For example, with posix_right under the earlier scheme, +# TZ='right/Australia/Adelaide' got you localtime with leap seconds, +# but gmtime without leap seconds, which led to problems with applications +# like sendmail that subtract gmtime from localtime. +# Therefore, the other two directories are now siblings of $(TZDIR). +# You must replace all of $(TZDIR) to switch from not using leap seconds +# to using them, or vice versa. +right_posix: right_only + rm -fr $(DESTDIR)$(TZDIR)-leaps + ln -s $(TZDIR_BASENAME) $(DESTDIR)$(TZDIR)-leaps || \ + $(MAKE) $(INSTALLARGS) TZDIR=$(TZDIR)-leaps right_only + $(MAKE) $(INSTALLARGS) TZDIR=$(TZDIR)-posix posix_only + +posix_right: posix_only + rm -fr $(DESTDIR)$(TZDIR)-posix + ln -s $(TZDIR_BASENAME) $(DESTDIR)$(TZDIR)-posix || \ + $(MAKE) $(INSTALLARGS) TZDIR=$(TZDIR)-posix posix_only + $(MAKE) $(INSTALLARGS) TZDIR=$(TZDIR)-leaps right_only + +# This obsolescent rule is present for backwards compatibility with +# tz releases 2014g through 2015g. It should go away eventually. +posix_packrat: + $(MAKE) $(INSTALLARGS) PACKRATDATA=backzone posix_only + +zones: $(REDO) + +$(TZS_NEW): $(TDATA) zdump zic + mkdir -p tzs.dir + $(zic) -d tzs.dir $(TDATA) + $(AWK) '/^Link/{print $$1 "\t" $$2 "\t" $$3}' \ + $(TDATA) | LC_ALL=C sort >$@.out + wd=`pwd` && \ + zones=`$(AWK) -v wd="$$wd" \ + '/^Zone/{print wd "/tzs.dir/" $$2}' $(TDATA) \ + | LC_ALL=C sort` && \ + ./zdump -i -c $(TZS_YEAR) $$zones >>$@.out + sed 's,^TZ=".*tzs\.dir/,TZ=",' $@.out >$@.sed.out + rm -fr tzs.dir $@.out + mv $@.sed.out $@ + +# If $(TZS) does not already exist (e.g., old-format tarballs), create it. +# If it exists but 'make check_tzs' fails, a maintainer should inspect the +# failed output and fix the inconsistency, perhaps by running 'make force_tzs'. +$(TZS): + $(MAKE) force_tzs + +force_tzs: $(TZS_NEW) + cp $(TZS_NEW) $(TZS) + +libtz.a: $(LIBOBJS) + $(AR) ru $@ $(LIBOBJS) + $(RANLIB) $@ + +date: $(DATEOBJS) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS) + +tzselect: tzselect.ksh version + VERSION=`cat version` && sed \ + -e 's|#!/bin/bash|#!$(KSHELL)|g' \ + -e 's|AWK=[^}]*|AWK=$(AWK)|g' \ + -e 's|\(PKGVERSION\)=.*|\1='\''($(PACKAGE)) '\''|' \ + -e 's|\(REPORT_BUGS_TO\)=.*|\1=$(BUGEMAIL)|' \ + -e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \ + -e 's|\(TZVERSION\)=.*|\1='"$$VERSION"'|' \ + <$@.ksh >$@.out + chmod +x $@.out + mv $@.out $@ + +check: check_character_set check_white_space check_links check_sorted \ + check_tables check_tzs check_web + +check_character_set: $(ENCHILADA) + LC_ALL=en_US.utf8 && export LC_ALL && \ + sharp='#' && \ + ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \ + $(MISC) $(SOURCES) $(WEB_PAGES) \ + CONTRIBUTING LICENSE Makefile README version && \ + ! grep -Env $(SAFE_SHARP_LINE) $(TDATA) backzone \ + leapseconds yearistype.sh zone.tab && \ + ! grep -Env $(OK_LINE) $(ENCHILADA) + +check_white_space: $(ENCHILADA) + patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \ + ! grep -En "$$pat" $(ENCHILADA) + ! grep -n '[[:space:]]$$' $(ENCHILADA) + +CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; } + +check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab + $(AWK) '/^Link/ {print $$3}' backward | LC_ALL=C sort -cu + $(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu + $(AWK) '/^[^#]/ {print $$1}' iso3166.tab | LC_ALL=C sort -cu + $(AWK) '/^[^#]/ {print $$1}' zone.tab | LC_ALL=C sort -c + $(AWK) '/^[^#]/ {print substr($$0, 1, 2)}' zone1970.tab | \ + LC_ALL=C sort -c + $(AWK) '/^[^#]/ $(CHECK_CC_LIST)' zone1970.tab | \ + LC_ALL=C sort -cu + +check_links: checklinks.awk $(TDATA) + $(AWK) -f checklinks.awk $(TDATA) + +check_tables: checktab.awk $(PRIMARY_YDATA) $(ZONETABLES) + for tab in $(ZONETABLES); do \ + $(AWK) -f checktab.awk -v zone_table=$$tab $(PRIMARY_YDATA) \ + || exit; \ + done + +check_tzs: $(TZS) $(TZS_NEW) + diff -u $(TZS) $(TZS_NEW) + +check_web: $(WEB_PAGES) + $(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) $(WEB_PAGES) + +clean_misc: + rm -f core *.o *.out \ + date tzselect version.h zdump zic yearistype libtz.a +clean: clean_misc + rm -fr *.dir tzdb-*/ $(TZS_NEW) + +maintainer-clean: clean + @echo 'This command is intended for maintainers to use; it' + @echo 'deletes files that may need special tools to rebuild.' + rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.* + +names: + @echo $(ENCHILADA) + +public: check check_public $(CHECK_TIME_T_ALTERNATIVES) \ + tarballs signatures + +date.1.txt: date.1 +newctime.3.txt: newctime.3 +newstrftime.3.txt: newstrftime.3 +newtzset.3.txt: newtzset.3 +time2posix.3.txt: time2posix.3 +tzfile.5.txt: tzfile.5 +tzselect.8.txt: tzselect.8 +zdump.8.txt: zdump.8 +zic.8.txt: zic.8 + +$(MANTXTS): workman.sh + LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out + mv $@.out $@ + +# Set the time stamps to those of the git repository, if available, +# and if the files have not changed since then. +# This uses GNU 'touch' syntax 'touch -d@N FILE', +# where N is the number of seconds since 1970. +# If git or GNU 'touch' is absent, don't bother to sync with git timestamps. +# Also, set the timestamp of each prebuilt file like 'leapseconds' +# to be the maximum of the files it depends on. +set-timestamps.out: $(ENCHILADA) + rm -f $@ + if (type git) >/dev/null 2>&1 && \ + files=`git ls-files $(ENCHILADA)` && \ + touch -md @1 test.out; then \ + rm -f test.out && \ + for file in $$files; do \ + if git diff --quiet $$file; then \ + time=`git log -1 --format='tformat:%ct' $$file` && \ + touch -cmd @$$time $$file; \ + else \ + echo >&2 "$$file: warning: does not match repository"; \ + fi || exit; \ + done; \ + fi + touch -cmr `ls -t $(LEAP_DEPS) | sed 1q` leapseconds + for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \ + touch -cmr `ls -t $$file workman.sh | sed 1q` $$file.txt || \ + exit; \ + done + touch -cmr `ls -t $(TZS_DEPS) | sed 1q` $(TZS) + touch -cmr `ls -t $(VERSION_DEPS) | sed 1q` version + touch $@ + +# The zics below ensure that each data file can stand on its own. +# We also do an all-files run to catch links to links. + +check_public: + $(MAKE) maintainer-clean + $(MAKE) "CFLAGS=$(GCC_DEBUG_FLAGS)" ALL + mkdir -p public.dir + for i in $(TDATA) ; do \ + $(zic) -v -d public.dir $$i 2>&1 || exit; \ + done + $(zic) -v -d public.dir $(TDATA) + rm -fr public.dir + +# Check that the code works under various alternative +# implementations of time_t. +check_time_t_alternatives: + if diff -q Makefile Makefile 2>/dev/null; then \ + quiet_option='-q'; \ + else \ + quiet_option=''; \ + fi && \ + wd=`pwd` && \ + zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \ + for type in $(TIME_T_ALTERNATIVES); do \ + mkdir -p time_t.dir/$$type && \ + $(MAKE) clean_misc && \ + $(MAKE) TOPDIR="$$wd/time_t.dir/$$type" \ + CFLAGS='$(CFLAGS) -Dtime_tz='"'$$type'" \ + REDO='$(REDO)' \ + install && \ + diff $$quiet_option -r \ + time_t.dir/int64_t/etc/zoneinfo \ + time_t.dir/$$type/etc/zoneinfo && \ + case $$type in \ + int32_t) range=-2147483648,2147483647;; \ + uint32_t) range=0,4294967296;; \ + int64_t) continue;; \ + *u*) range=0,10000000000;; \ + *) range=-10000000000,10000000000;; \ + esac && \ + echo checking $$type zones ... && \ + time_t.dir/int64_t/etc/zdump -V -t $$range $$zones \ + >time_t.dir/int64_t.out && \ + time_t.dir/$$type/etc/zdump -V -t $$range $$zones \ + >time_t.dir/$$type.out && \ + diff -u time_t.dir/int64_t.out time_t.dir/$$type.out \ + || exit; \ + done + rm -fr time_t.dir + +tarballs traditional_tarballs signatures traditional_signatures: version + VERSION=`cat version` && \ + $(MAKE) VERSION="$$VERSION" $@_version + +tarballs_version: traditional_tarballs_version tzdb-$(VERSION).tar.lz +traditional_tarballs_version: \ + tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz +signatures_version: traditional_signatures_version tzdb-$(VERSION).tar.lz.asc +traditional_signatures_version: \ + tzcode$(VERSION).tar.gz.asc tzdata$(VERSION).tar.gz.asc \ + +tzcode$(VERSION).tar.gz: set-timestamps.out + LC_ALL=C && export LC_ALL && \ + tar $(TARFLAGS) -cf - \ + $(COMMON) $(DOCS) $(SOURCES) | \ + gzip $(GZIPFLAGS) >$@.out + mv $@.out $@ + +tzdata$(VERSION).tar.gz: set-timestamps.out + LC_ALL=C && export LC_ALL && \ + tar $(TARFLAGS) -cf - $(COMMON) $(DATA) $(MISC) | \ + gzip $(GZIPFLAGS) >$@.out + mv $@.out $@ + +tzdb-$(VERSION).tar.lz: set-timestamps.out + rm -fr tzdb-$(VERSION) + mkdir tzdb-$(VERSION) + ln $(ENCHILADA) tzdb-$(VERSION) + touch -cmr `ls -t tzdb-$(VERSION)/* | sed 1q` tzdb-$(VERSION) + LC_ALL=C && export LC_ALL && \ + tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out + mv $@.out $@ + +tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz + gpg --armor --detach-sign $? + +tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz + gpg --armor --detach-sign $? + +tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz + gpg --armor --detach-sign $? + +typecheck: + $(MAKE) clean + for i in "long long" unsigned; \ + do \ + $(MAKE) CFLAGS="-DTYPECHECK -D__time_t_defined -D_TIME_T \"-Dtime_t=$$i\"" ; \ + ./zdump -v Europe/Rome ; \ + $(MAKE) clean ; \ + done + +zonenames: $(TDATA) + @$(AWK) '/^Zone/ { print $$2 } /^Link/ { print $$3 }' $(TDATA) + +asctime.o: private.h tzfile.h +date.o: private.h +difftime.o: private.h +localtime.o: private.h tzfile.h +strftime.o: private.h tzfile.h +zdump.o: version.h +zic.o: private.h tzfile.h version.h + +.KEEP_STATE: + +.PHONY: ALL INSTALL all +.PHONY: check check_character_set check_links +.PHONY: check_public check_sorted check_tables +.PHONY: check_time_t_alternatives check_tzs check_web check_white_space +.PHONY: clean clean_misc force_tzs +.PHONY: install install_data maintainer-clean names +.PHONY: posix_only posix_packrat posix_right +.PHONY: public right_only right_posix signatures signatures_version +.PHONY: tarballs tarballs_version typecheck +.PHONY: zonenames zones diff --git a/contrib/tzdata/NEWS b/contrib/tzdata/NEWS new file mode 100644 index 0000000..da5c2a5 --- /dev/null +++ b/contrib/tzdata/NEWS @@ -0,0 +1,3782 @@ +News for the tz database + +Release 2016i - 2016-11-01 23:19:52 -0700 + + Briefly: Cyprus split into two time zones on 2016-10-30, and Tonga + reintroduces DST on 2016-11-06. + + Changes to future time stamps + + Pacific/Tongatapu begins DST on 2016-11-06 at 02:00, ending on + 2017-01-15 at 03:00. Assume future observances in Tonga will be + from the first Sunday in November through the third Sunday in + January, like Fiji. (Thanks to Pulu ʻAnau.) Switch to numeric + time zone abbreviations for this zone. + + Changes to past and future time stamps + + Northern Cyprus is now +03 year round, causing a split in Cyprus + time zones starting 2016-10-30 at 04:00. This creates a zone + Asia/Famagusta. (Thanks to Even Scharning and Matt Johnson.) + + Antarctica/Casey switched from +08 to +11 on 2016-10-22. + (Thanks to Steffen Thorsen.) + + Changes to past time stamps + + Several corrections were made for pre-1975 time stamps in Italy. + These affect Europe/Malta, Europe/Rome, Europe/San_Marino, and + Europe/Vatican. + + First, the 1893-11-01 00:00 transition in Italy used the new UT + offset (+01), not the old (+00:49:56). (Thanks to Michael + Deckers.) + + Second, rules for daylight saving in Italy were changed to agree + with Italy's National Institute of Metrological Research (INRiM) + except for 1944, as follows (thanks to Pierpaolo Bernardi, Brian + Inglis, and Michael Deckers): + + The 1916-06-03 transition was at 24:00, not 00:00. + + The 1916-10-01, 1919-10-05, and 1920-09-19 transitions were at + 00:00, not 01:00. + + The 1917-09-30 and 1918-10-06 transitions were at 24:00, not + 01:00. + + The 1944-09-17 transition was at 03:00, not 01:00. This + particular change is taken from Italian law as INRiM's table, + (which says 02:00) appears to have a typo here. Also, keep the + 1944-04-03 transition for Europe/Rome, as Rome was controlled by + Germany then. + + The 1967-1970 and 1972-1974 fallback transitions were at 01:00, + not 00:00. + + Changes to code + + The code should now be buildable on AmigaOS merely by setting the + appropriate Makefile variables. (From a patch by Carsten Larsen.) + + +Release 2016h - 2016-10-19 23:17:57 -0700 + + Changes to future time stamps + + Asia/Gaza and Asia/Hebron end DST on 2016-10-29 at 01:00, not + 2016-10-21 at 00:00. (Thanks to Sharef Mustafa.) Predict that + future fall transitions will be on the last Saturday of October + at 01:00, which is consistent with predicted spring transitions + on the last Saturday of March. (Thanks to Tim Parenti.) + + Changes to past time stamps + + In Turkey, transitions in 1986-1990 were at 01:00 standard time + not at 02:00, and the spring 1994 transition was on March 20, not + March 27. (Thanks to Kıvanç Yazan.) + + Changes to past and future time zone abbreviations + + Asia/Colombo now uses numeric time zone abbreviations like "+0530" + instead of alphabetic ones like "IST" and "LKT". Various + English-language sources use "IST", "LKT" and "SLST", with no + working consensus. (Usage of "SLST" mentioned by Sadika + Sumanapala.) + + Changes to code + + zic no longer mishandles relativizing file names when creating + symbolic links like /etc/localtime, when these symbolic links + are outside the usual directory hierarchy. This fixes a bug + introduced in 2016g. (Problem reported by Andreas Stieger.) + + Changes to build procedure + + New rules 'traditional_tarballs' and 'traditional_signatures' for + building just the traditional-format distribution. (Requested by + Deborah Goldsmith.) + + The file 'version' is now put into the tzdata tarball too. + (Requested by Howard Hinnant.) + + Changes to documentation and commentary + + The 'Theory' file now has a section on interface stability. + (Requested by Paul Koning.) It also mentions features like + tm_zone and localtime_rz that have long been supported by the + reference code. + + tz-link.htm has improved coverage of time zone boundaries suitable + for geolocation. (Thanks to heads-ups from Evan Siroky and Matt + Johnson.) + + The US commentary now mentions Allen and the "day of two noons". + + The Fiji commentary mentions the government's 2016-10-03 press + release. (Thanks to Raymond Kumar.) + + +Release 2016g - 2016-09-13 08:56:38 -0700 + + Changes to future time stamps + + Turkey switched from EET/EEST (+02/+03) to permanent +03, + effective 2016-09-07. (Thanks to Burak AYDIN.) Use "+03" rather + than an invented abbreviation for the new time. + + New leap second 2016-12-31 23:59:60 UTC as per IERS Bulletin C 52. + (Thanks to Tim Parenti.) + + Changes to past time stamps + + For America/Los_Angeles, spring-forward transition times have been + corrected from 02:00 to 02:01 in 1948, and from 02:00 to 01:00 in + 1950-1966. + + For zones using Soviet time on 1919-07-01, transitions to UT-based + time were at 00:00 UT, not at 02:00 local time. The affected + zones are Europe/Kirov, Europe/Moscow, Europe/Samara, and + Europe/Ulyanovsk. (Thanks to Alexander Belopolsky.) + + Changes to past and future time zone abbreviations + + The Factory zone now uses the time zone abbreviation -00 instead + of a long English-language string, as -00 is now the normal way to + represent an undefined time zone. + + Several zones in Antarctica and the former Soviet Union, along + with zones intended for ships at sea that cannot use POSIX TZ + strings, now use numeric time zone abbreviations instead of + invented or obsolete alphanumeric abbreviations. The affected + zones are Antarctica/Casey, Antarctica/Davis, + Antarctica/DumontDUrville, Antarctica/Mawson, Antarctica/Rothera, + Antarctica/Syowa, Antarctica/Troll, Antarctica/Vostok, + Asia/Anadyr, Asia/Ashgabat, Asia/Baku, Asia/Bishkek, Asia/Chita, + Asia/Dushanbe, Asia/Irkutsk, Asia/Kamchatka, Asia/Khandyga, + Asia/Krasnoyarsk, Asia/Magadan, Asia/Omsk, Asia/Sakhalin, + Asia/Samarkand, Asia/Srednekolymsk, Asia/Tashkent, Asia/Tbilisi, + Asia/Ust-Nera, Asia/Vladivostok, Asia/Yakutsk, Asia/Yekaterinburg, + Asia/Yerevan, Etc/GMT-14, Etc/GMT-13, Etc/GMT-12, Etc/GMT-11, + Etc/GMT-10, Etc/GMT-9, Etc/GMT-8, Etc/GMT-7, Etc/GMT-6, Etc/GMT-5, + Etc/GMT-4, Etc/GMT-3, Etc/GMT-2, Etc/GMT-1, Etc/GMT+1, Etc/GMT+2, + Etc/GMT+3, Etc/GMT+4, Etc/GMT+5, Etc/GMT+6, Etc/GMT+7, Etc/GMT+8, + Etc/GMT+9, Etc/GMT+10, Etc/GMT+11, Etc/GMT+12, Europe/Kaliningrad, + Europe/Minsk, Europe/Samara, Europe/Volgograd, and + Indian/Kerguelen. For Europe/Moscow the invented abbreviation MSM + was replaced by +05, whereas MSK and MSD were kept as they are not + our invention and are widely used. + + Changes to zone names + + Rename Asia/Rangoon to Asia/Yangon, with a backward compatibility link. + (Thanks to David Massoud.) + + Changes to code + + zic no longer generates binary files containing POSIX TZ-like + strings that disagree with the local time type after the last + explicit transition in the data. This fixes a bug with + Africa/Casablanca and Africa/El_Aaiun in some year-2037 time + stamps on the reference platform. (Thanks to Alexander Belopolsky + for reporting the bug and suggesting a way forward.) + + If the installed localtime and/or posixrules files are symbolic + links, zic now keeps them symbolic links when updating them, for + compatibility with platforms like OpenSUSE where other programs + configure these files as symlinks. + + zic now avoids hard linking to symbolic links, avoids some + unnecessary mkdir and stat system calls, and uses shorter file + names internally. + + zdump has a new -i option to generate transitions in a + more-compact but still human-readable format. This option is + experimental, and the output format may change in future versions. + (Thanks to Jon Skeet for suggesting that an option was needed, + and thanks to Tim Parenti and Chris Rovick for further comments.) + + Changes to build procedure + + An experimental distribution format is available, in addition + to the traditional format which will continue to be distributed. + The new format is a tarball tzdb-VERSION.tar.lz with signature + file tzdb-VERSION.tar.lz.asc. It unpacks to a top-level directory + tzdb-VERSION containing the code and data of the traditional + two-tarball format, along with extra data that may be useful. + (Thanks to Antonio Diaz Diaz, Oscar van Vlijmen, and many others + for comments about the experimental format.) + + The release version number is now more accurate in the usual case + where releases are built from a Git repository. For example, if + 23 commits and some working-file changes have been made since + release 2016g, the version number is now something like + '2016g-23-g50556e3-dirty' instead of the misleading '2016g'. + Official releases uses the same version number format as before, + e.g., '2016g'. To support the more-accurate version number, its + specification has moved from a line in the Makefile to a new + source file 'version'. + + The experimental distribution contains a file to2050.tzs that + contains what should be the output of 'zdump -i -c 2050' on + primary zones. If this file is available, 'make check' now checks + that zdump generates this output. + + 'make check_web' now works on Fedora-like distributions. + + Changes to documentation and commentary + + tzfile.5 now documents the new restriction on POSIX TZ-like + strings that is now implemented by zic. + + Comments now cite URLs for some 1917-1921 Russian DST decrees. + (Thanks to Alexander Belopolsky.) + + tz-link.htm mentions JuliaTime (thanks to Curtis Vogt) and Time4J + (thanks to Meno Hochschild) and ThreeTen-Extra, and its + description of Java 8 has been brought up to date (thanks to + Stephen Colebourne). Its description of local time on Mars has + been updated to match current practice, and URLs have been updated + and some obsolete ones removed. + + +Release 2016f - 2016-07-05 16:26:51 +0200 + + Changes affecting future time stamps + + The Egyptian government changed its mind on short notice, and + Africa/Cairo will not introduce DST starting 2016-07-07 after all. + (Thanks to Mina Samuel.) + + Asia/Novosibirsk switches from +06 to +07 on 2016-07-24 at 02:00. + (Thanks to Stepan Golosunov.) + + Changes to past and future time stamps + + Asia/Novokuznetsk and Asia/Novosibirsk now use numeric time zone + abbreviations instead of invented ones. + + Changes affecting past time stamps + + Europe/Minsk's 1992-03-29 spring-forward transition was at 02:00 not 00:00. + (Thanks to Stepan Golosunov.) + + +Release 2016e - 2016-06-14 08:46:16 -0700 + + Changes affecting future time stamps + + Africa/Cairo observes DST in 2016 from July 7 to the end of October. + Guess October 27 and 24:00 transitions. (Thanks to Steffen Thorsen.) + For future years, guess April's last Thursday to October's last + Thursday except for Ramadan. + + Changes affecting past time stamps + + Locations while uninhabited now use '-00', not 'zzz', as a + placeholder time zone abbreviation. This is inspired by Internet + RFC 3339 and is more consistent with numeric time zone + abbreviations already used elsewhere. The change affects several + arctic and antarctic locations, e.g., America/Cambridge_Bay before + 1920 and Antarctica/Troll before 2005. + + Asia/Baku's 1992-09-27 transition from +04 (DST) to +04 (non-DST) was + at 03:00, not 23:00 the previous day. (Thanks to Michael Deckers.) + + Changes to code + + zic now outputs a dummy transition at time 2**31 - 1 in zones + whose POSIX-style TZ strings contain a '<'. This mostly works + around Qt bug 53071 <https://bugreports.qt.io/browse/QTBUG-53071>. + (Thanks to Zhanibek Adilbekov for reporting the Qt bug.) + + Changes affecting documentation and commentary + + tz-link.htm says why governments should give plenty of notice for + time zone or DST changes, and refers to Matt Johnson's blog post. + + tz-link.htm mentions Tzdata for Elixir. (Thanks to Matt Johnson.) + + +Release 2016d - 2016-04-17 22:50:29 -0700 + + Changes affecting future time stamps + + America/Caracas switches from -0430 to -04 on 2016-05-01 at 02:30. + (Thanks to Alexander Krivenyshev for the heads-up.) + + Asia/Magadan switches from +10 to +11 on 2016-04-24 at 02:00. + (Thanks to Alexander Krivenyshev and Matt Johnson.) + + New zone Asia/Tomsk, split off from Asia/Novosibirsk. It covers + Tomsk Oblast, Russia, which switches from +06 to +07 on 2016-05-29 + at 02:00. (Thanks to Stepan Golosunov.) + + Changes affecting past time stamps + + New zone Europe/Kirov, split off from Europe/Volgograd. It covers + Kirov Oblast, Russia, which switched from +04/+05 to +03/+04 on + 1989-03-26 at 02:00, roughly a year after Europe/Volgograd made + the same change. (Thanks to Stepan Golosunov.) + + Russia and nearby locations had daylight-saving transitions on + 1992-03-29 at 02:00 and 1992-09-27 at 03:00, instead of on + 1992-03-28 at 23:00 and 1992-09-26 at 23:00. (Thanks to Stepan + Golosunov.) + + Many corrections to historical time in Kazakhstan from 1991 + through 2005. (Thanks to Stepan Golosunov.) Replace Kazakhstan's + invented time zone abbreviations with numeric abbreviations. + + Changes to commentary + + Mention Internet RFCs 7808 (TZDIST) and 7809 (CalDAV time zone references). + + +Release 2016c - 2016-03-23 00:51:27 -0700 + + Changes affecting future time stamps + + Azerbaijan no longer observes DST. (Thanks to Steffen Thorsen.) + + Chile reverts from permanent to seasonal DST. (Thanks to Juan + Correa for the heads-up, and to Tim Parenti for corrections.) + Guess that future transitions are August's and May's second + Saturdays at 24:00 mainland time. Also, call the period from + 2014-09-07 through 2016-05-14 daylight saving time instead of + standard time, as that seems more appropriate now. + + Changes affecting past time stamps + + Europe/Kaliningrad and Europe/Vilnius changed from +03/+04 to + +02/+03 on 1989-03-26, not 1991-03-31. Europe/Volgograd changed + from +04/+05 to +03/+04 on 1988-03-27, not 1989-03-26. + (Thanks to Stepan Golosunov.) + + Changes to commentary + + Several updates and URLs for historical and proposed Russian changes. + (Thanks to Stepan Golosunov, Matt Johnson, and Alexander Krivenyshev.) + + +Release 2016b - 2016-03-12 17:30:14 -0800 + + Compatibility note + + Starting with release 2016b, some data entries cause zic implementations + derived from tz releases 2005j through 2015e to issue warnings like + "time zone abbreviation differs from POSIX standard (+03)". + These warnings should not otherwise affect zic's output and can safely be + ignored on today's platforms, as the warnings refer to a restriction in + POSIX.1-1988 that was removed in POSIX.1-2001. One way to suppress the + warnings is to upgrade to zic derived from tz releases 2015f and later. + + Changes affecting future time stamps + + New zones Europe/Astrakhan and Europe/Ulyanovsk for Astrakhan and + Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on + 2016-03-27 at 02:00 local time. They need distinct zones since their + post-1970 histories disagree. New zone Asia/Barnaul for Altai Krai and + Altai Republic, Russia, which will switch from +06 to +07 on the same date + and local time. The Astrakhan change is already official; the others have + passed the first reading in the State Duma and are extremely likely. + Also, Asia/Sakhalin moves from +10 to +11 on 2016-03-27 at 02:00. + (Thanks to Alexander Krivenyshev for the heads-up, and to Matt Johnson + and Stepan Golosunov for followup.) + + As a trial of a new system that needs less information to be made up, + the new zones use numeric time zone abbreviations like "+04" + instead of invented abbreviations like "ASTT". + + Haiti will not observe DST in 2016. (Thanks to Jean Antoine via + Steffen Thorsen.) + + Palestine's spring-forward transition on 2016-03-26 is at 01:00, not 00:00. + (Thanks to Hannah Kreitem.) Guess future transitions will be March's last + Saturday at 01:00, not March's last Friday at 24:00. + + Changes affecting past time stamps + + Europe/Chisinau observed DST during 1990, and switched from +04 to + +03 at 1990-05-06 02:00, instead of switching from +03 to +02. + (Thanks to Stepan Golosunov.) + + 1991 abbreviations in Europe/Samara should be SAMT/SAMST, not + KUYT/KUYST. (Thanks to Stepan Golosunov.) + + Changes to code + + tzselect's diagnostics and checking, and checktab.awk's checking, + have been improved. (Thanks to J William Piggott.) + + tzcode now builds under MinGW. (Thanks to Ian Abbott and Esben Haabendal.) + + tzselect now tests Julian-date TZ settings more accurately. + (Thanks to J William Piggott.) + + Changes to commentary + + Comments in zone tables have been improved. (Thanks to J William Piggott.) + + tzselect again limits its menu comments so that menus fit on a + 24x80 alphanumeric display. + + A new web page tz-how-to.html. (Thanks to Bill Seymour.) + + In the Theory file, the description of possible time zone abbreviations in + tzdata has been cleaned up, as the old description was unclear and + inconsistent. (Thanks to Alain Mouette for reporting the problem.) + + +Release 2016a - 2016-01-26 23:28:02 -0800 + + Changes affecting future time stamps + + America/Cayman will not observe daylight saving this year after all. + Revert our guess that it would. (Thanks to Matt Johnson.) + + Asia/Chita switches from +0800 to +0900 on 2016-03-27 at 02:00. + (Thanks to Alexander Krivenyshev.) + + Asia/Tehran now has DST predictions for the year 2038 and later, + to be March 21 00:00 to September 21 00:00. This is likely better + than predicting no DST, albeit off by a day every now and then. + + Changes affecting past and future time stamps + + America/Metlakatla switched from PST all year to AKST/AKDT on + 2015-11-01 at 02:00. (Thanks to Steffen Thorsen.) + + America/Santa_Isabel has been removed, and replaced with a + backward compatibility link to America/Tijuana. Its contents were + apparently based on a misreading of Mexican legislation. + + Changes affecting past time stamps + + Asia/Karachi's two transition times in 2002 were off by a minute. + (Thanks to Matt Johnson.) + + Changes affecting build procedure + + An installer can now combine leap seconds with use of the backzone file, + e.g., with 'make PACKRATDATA=backzone REDO=posix_right zones'. + The old 'make posix_packrat' rule is now marked as obsolescent. + (Thanks to Ian Abbott for an initial implementation.) + + Changes affecting documentation and commentary + + A new file LICENSE makes it easier to see that the code and data + are mostly public-domain. (Thanks to James Knight.) The three + non-public-domain files now use the current (3-clause) BSD license + instead of older versions of that license. + + tz-link.htm mentions the BDE library (thanks to Andrew Paprocki), + CCTZ (thanks to Tim Parenti), TimeJones.com, and has a new section + on editing tz source files (with a mention of Sublime zoneinfo, + thanks to Gilmore Davidson). + + The Theory and asia files now mention the 2015 book "The Global + Transformation of Time, 1870-1950", and cite a couple of reviews. + + The America/Chicago entry now documents the informal use of US + central time in Fort Pierre, South Dakota. (Thanks to Rick + McDermid, Matt Johnson, and Steve Jones.) + + +Release 2015g - 2015-10-01 00:39:51 -0700 + + Changes affecting future time stamps + + Turkey's 2015 fall-back transition is scheduled for Nov. 8, not Oct. 25. + (Thanks to Fatih.) + + Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time. + (Thanks to Alexander Krivenyshev.) + + Fiji's 2016 fall-back transition is scheduled for January 17, not 24. + (Thanks to Ken Rylander.) + + Fort Nelson, British Columbia will not fall back on 2015-11-01. It has + effectively been on MST (-0700) since it advanced its clocks on 2015-03-08. + New zone America/Fort_Nelson. (Thanks to Matt Johnson.) + + Changes affecting past time stamps + + Norfolk observed DST from 1974-10-27 02:00 to 1975-03-02 02:00. + + Changes affecting code + + localtime no longer mishandles America/Anchorage after 2037. + (Thanks to Bradley White for reporting the bug.) + + On hosts with signed 32-bit time_t, localtime no longer mishandles + Pacific/Fiji after 2038-01-16 14:00 UTC. + + The localtime module allows the variables 'timezone', 'daylight', + and 'altzone' to be in common storage shared with other modules, + and declares them in case the system <time.h> does not. + (Problems reported by Kees Dekker.) + + On platforms with tm_zone, strftime.c now assumes it is not NULL. + This simplifies the code and is consistent with zdump.c. + (Problem reported by Christos Zoulas.) + + Changes affecting documentation + + The tzfile man page now documents that transition times denote the + starts (not the ends) of the corresponding time periods. + (Ambiguity reported by Bill Seymour.) + + +Release 2015f - 2015-08-10 18:06:56 -0700 + + Changes affecting future time stamps + + North Korea switches to +0830 on 2015-08-15. (Thanks to Steffen Thorsen.) + The abbreviation remains "KST". (Thanks to Robert Elz.) + + Uruguay no longer observes DST. (Thanks to Steffen Thorsen + and Pablo Camargo.) + + Changes affecting past and future time stamps + + Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC. + (Thanks to Roman Tudos.) + + Changes affecting data format and code + + zic's '-y YEARISTYPE' option is no longer documented. The TYPE + field of a Rule line should now be '-'; the old values 'even', + 'odd', 'uspres', 'nonpres', 'nonuspres' were already undocumented. + Although the implementation has not changed, these features do not + work in the default installation, they are not used in the data, + and they are now considered obsolescent. + + zic now checks that two rules don't take effect at the same time. + (Thanks to Jon Skeet and Arthur David Olson.) Constraints on + simultaneity are now documented. + + The two characters '%z' in a zone format now stand for the UTC + offset, e.g., '-07' for seven hours behind UTC and '+0530' for + five hours and thirty minutes ahead. This better supports time + zone abbreviations conforming to POSIX.1-2001 and later. + + Changes affecting installed data files + + Comments for America/Halifax and America/Glace_Bay have been improved. + (Thanks to Brian Inglis.) + + Data entries have been simplified for Atlantic/Canary, Europe/Simferopol, + Europe/Sofia, and Europe/Tallinn. This yields slightly smaller + installed data files for Europe/Simferopol and Europe/Tallinn. + It does not affect timestamps. (Thanks to Howard Hinnant.) + + Changes affecting code + + zdump and zic no longer warn about valid time zone abbreviations + like '-05'. + + Some Visual Studio 2013 warnings have been suppressed. + (Thanks to Kees Dekker.) + + 'date' no longer sets the time of day and its -a, -d, -n and -t + options have been removed. Long obsolescent, the implementation + of these features had porting problems. Builders no longer need + to configure HAVE_ADJTIME, HAVE_SETTIMEOFDAY, or HAVE_UTMPX_H. + (Thanks to Kees Dekker for pointing out the problem.) + + Changes affecting documentation + + The Theory file mentions naming issues earlier, as these seem to be + poorly publicized (thanks to Gilmore Davidson for reporting the problem). + + tz-link.htm mentions Time Zone Database Parser (thanks to Howard Hinnant). + + Mention that Herbert Samuel introduced the term "Summer Time". + + +Release 2015e - 2015-06-13 10:56:02 -0700 + + Changes affecting future time stamps + + Morocco will suspend DST from 2015-06-14 03:00 through 2015-07-19 02:00, + not 06-13 and 07-18 as we had guessed. (Thanks to Milamber.) + + Assume Cayman Islands will observe DST starting next year, using US rules. + Although it isn't guaranteed, it is the most likely. + + Changes affecting data format + + The file 'iso3166.tab' now uses UTF-8, so that its entries can better + spell the names of Åland Islands, Côte d'Ivoire, and Réunion. + + Changes affecting code + + When displaying data, tzselect converts it to the current locale's + encoding if the iconv command works. (Problem reported by random832.) + + tzselect no longer mishandles Dominica, fixing a bug introduced + in Release 2014f. (Problem reported by Owen Leibman.) + + zic -l no longer fails when compiled with -DTZDEFAULT=\"/etc/localtime\". + This fixes a bug introduced in Release 2014f. + (Problem reported by Leonardo Chiquitto.) + + +Release 2015d - 2015-04-24 08:09:46 -0700 + + Changes affecting future time stamps + + Egypt will not observe DST in 2015 and will consider canceling it + permanently. For now, assume no DST indefinitely. + (Thanks to Ahmed Nazmy and Tim Parenti.) + + Changes affecting past time stamps + + America/Whitehorse switched from UT -09 to -08 on 1967-05-28, not + 1966-07-01. Also, Yukon's time zone history is documented better. + (Thanks to Brian Inglis and Dennis Ferguson.) + + Change affecting past and future time zone abbreviations + + The abbreviations for Hawaii-Aleutian standard and daylight times + have been changed from HAST/HADT to HST/HDT, as per US Government + Printing Office style. This affects only America/Adak since 1983, + as America/Honolulu was already using the new style. + + Changes affecting code + + zic has some minor performance improvements. + + +Release 2015c - 2015-04-11 08:55:55 -0700 + + Changes affecting future time stamps + + Egypt's spring-forward transition is at 24:00 on April's last Thursday, + not 00:00 on April's last Friday. 2015's transition will therefore be on + Thursday, April 30 at 24:00, not Friday, April 24 at 00:00. Similar fixes + apply to 2026, 2037, 2043, etc. (Thanks to Steffen Thorsen.) + + Changes affecting past time stamps + + The following changes affect some pre-1991 Chile-related time stamps + in America/Santiago, Antarctica/Palmer, and Pacific/Easter. + + The 1910 transition was January 10, not January 1. + + The 1918 transition was September 10, not September 1. + + The UT -04 time observed from 1932 to 1942 is now considered to + be standard time, not year-round DST. + + Santiago observed DST (UT -03) from 1946-07-15 through + 1946-08-31, then reverted to standard time, then switched to -05 + on 1947-04-01. + + Assume transitions before 1968 were at 00:00, since we have no data + saying otherwise. + + The spring 1988 transition was 1988-10-09, not 1988-10-02. + The fall 1990 transition was 1990-03-11, not 1990-03-18. + + Assume no UTC offset change for Pacific/Easter on 1890-01-01, + and omit all transitions on Pacific/Easter from 1942 through 1946 + since we have no data suggesting that they existed. + + One more zone has been turned into a link, as it differed + from an existing zone only for older time stamps. As usual, + this change affects UTC offsets in pre-1970 time stamps only. + The zone's old contents have been moved to the 'backzone' file. + The affected zone is America/Montreal. + + Changes affecting commentary + + Mention the TZUpdater tool. + + Mention "The Time Now". (Thanks to Brandon Ramsey.) + + +Release 2015b - 2015-03-19 23:28:11 -0700 + + Changes affecting future time stamps + + Mongolia will start observing DST again this year, from the last + Saturday in March at 02:00 to the last Saturday in September at 00:00. + (Thanks to Ganbold Tsagaankhuu.) + + Palestine will start DST on March 28, not March 27. Also, + correct the fall 2014 transition from September 26 to October 24. + Adjust future predictions accordingly. (Thanks to Steffen Thorsen.) + + Changes affecting past time stamps + + The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a + regression. (Thanks to Stuart Bishop for reporting the problem.) + + Some more zones have been turned into links, when they differed + from existing zones only for older time stamps. As usual, + these changes affect UTC offsets in pre-1970 time stamps only. + Their old contents have been moved to the 'backzone' file. + The affected zones are: America/Antigua, America/Cayman, + Pacific/Midway, and Pacific/Saipan. + + Changes affecting time zone abbreviations + + Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD". + (Thanks to Hank W.) + + Changes affecting code + + Fix integer overflow bug in reference 'mktime' implementation. + (Problem reported by Jörg Richter.) + + Allow -Dtime_tz=time_t compilations, and allow -Dtime_tz=... libraries + to be used in the same executable as standard-library time_t functions. + (Problems reported by Bradley White.) + + Changes affecting commentary + + Cite the recent Mexican decree changing Quintana Roo's time zone. + (Thanks to Carlos Raúl Perasso.) + + Likewise for the recent Chilean decree. (Thanks to Eduardo Romero Urra.) + + Update info about Mars time. + + +Release 2015a - 2015-01-29 22:35:20 -0800 + + Changes affecting future time stamps + + The Mexican state of Quintana Roo, represented by America/Cancun, + will shift from Central Time with DST to Eastern Time without DST + on 2015-02-01 at 02:00. (Thanks to Steffen Thorsen and Gwillim Law.) + + Chile will not change clocks in April or thereafter; its new standard time + will be its old daylight saving time. This affects America/Santiago, + Pacific/Easter, and Antarctica/Palmer. (Thanks to Juan Correa.) + + New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49. + (Thanks to Tim Parenti.) + + Changes affecting past time stamps + + Iceland observed DST in 1919 and 1921, and its 1939 fallback + transition was Oct. 29, not Nov. 29. Remove incorrect data from + Shanks about time in Iceland between 1837 and 1908. + + Some more zones have been turned into links, when they differed + from existing zones only for older time stamps. As usual, + these changes affect UTC offsets in pre-1970 time stamps only. + Their old contents have been moved to the 'backzone' file. + The affected zones are: Asia/Aden, Asia/Bahrain, Asia/Kuwait, + and Asia/Muscat. + + Changes affecting code + + tzalloc now scrubs time zone abbreviations compatibly with the way + that tzset always has, by replacing invalid bytes with '_' and by + shortening too-long abbreviations. + + tzselect ports to POSIX awk implementations, no longer mishandles + POSIX TZ settings when GNU awk is used, and reports POSIX TZ + settings to the user. (Thanks to Stefan Kuhn.) + + Changes affecting build procedure + + 'make check' now checks for links to links in the data. + One such link (for Africa/Asmera) has been fixed. + (Thanks to Stephen Colebourne for pointing out the problem.) + + Changes affecting commentary + + The leapseconds file commentary now mentions the expiration date. + (Problem reported by Martin Burnicki.) + + Update Mexican Library of Congress URL. + + +Release 2014j - 2014-11-10 17:37:11 -0800 + + Changes affecting current and future time stamps + + Turks & Caicos' switch from US eastern time to UT -04 year-round + did not occur on 2014-11-02 at 02:00. It's currently scheduled + for 2015-11-01 at 02:00. (Thanks to Chris Walton.) + + Changes affecting past time stamps + + Many pre-1989 time stamps have been corrected for Asia/Seoul and + Asia/Pyongyang, based on sources for the Korean-language Wikipedia + entry for time in Korea. (Thanks to Sanghyuk Jung.) Also, no + longer guess that Pyongyang mimicked Seoul time after World War II, + as this is politically implausible. + + Some more zones have been turned into links, when they differed + from existing zones only for older time stamps. As usual, + these changes affect UTC offsets in pre-1970 time stamps only. + Their old contents have been moved to the 'backzone' file. + The affected zones are: Africa/Addis_Ababa, Africa/Asmara, + Africa/Dar_es_Salaam, Africa/Djibouti, Africa/Kampala, + Africa/Mogadishu, Indian/Antananarivo, Indian/Comoro, and + Indian/Mayotte. + + Changes affecting commentary + + The commentary is less enthusiastic about Shanks as a source, + and is more careful to distinguish UT from UTC. + + +Release 2014i - 2014-10-21 22:04:57 -0700 + + Changes affecting future time stamps + + Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00. + (Thanks to Ken Rylander for the heads-up.) Guess that future + years will use a similar pattern. + + A new Zone Pacific/Bougainville, for the part of Papua New Guinea + that plans to switch from UT +10 to +11 on 2014-12-28 at 02:00. + (Thanks to Kiley Walbom for the heads-up.) + + Changes affecting time zone abbreviations + + Since Belarus is not changing its clocks even though Moscow is, + the time zone abbreviation in Europe/Minsk is changing from FET + to its more-traditional value MSK on 2014-10-26 at 01:00. + (Thanks to Alexander Bokovoy for the heads-up about Belarus.) + + The new abbreviation IDT stands for the pre-1976 use of UT +08 in + Indochina, to distinguish it better from ICT (+07). + + Changes affecting past time stamps + + Many time stamps have been corrected for Asia/Ho_Chi_Minh before 1976 + (thanks to Trần Ngọc Quân for an indirect pointer to Trần Tiến Bình's + authoritative book). Asia/Ho_Chi_Minh has been added to + zone1970.tab, to give tzselect users in Vietnam two choices, + since north and south Vietnam disagreed after our 1970 cutoff. + + Asia/Phnom_Penh and Asia/Vientiane have been turned into links, as + they differed from existing zones only for older time stamps. As + usual, these changes affect pre-1970 time stamps only. Their old + contents have been moved to the 'backzone' file. + + Changes affecting code + + The time-related library functions now set errno on failure, and + some crashes in the new tzalloc-related library functions have + been fixed. (Thanks to Christos Zoulas for reporting most of + these problems and for suggesting fixes.) + + If USG_COMPAT is defined and the requested time stamp is standard time, + the tz library's localtime and mktime functions now set the extern + variable timezone to a value appropriate for that time stamp; and + similarly for ALTZONE, daylight saving time, and the altzone variable. + This change is a companion to the tzname change in 2014h, and is + designed to make timezone and altzone more compatible with tzname. + + The tz library's functions now set errno to EOVERFLOW if they fail + because the result cannot be represented. ctime and ctime_r now + return NULL and set errno when a time stamp is out of range, rather + than having undefined behavior. + + Some bugs associated with the new 2014g functions have been fixed. + This includes a bug that largely incapacitated the new functions + time2posix_z and posix2time_z. (Thanks to Christos Zoulas.) + It also includes some uses of uninitialized variables after tzalloc. + The new code uses the standard type 'ssize_t', which the Makefile + now gives porting advice about. + + Changes affecting commentary + + Updated URLs for NRC Canada (thanks to Matt Johnson and Brian Inglis). + + +Release 2014h - 2014-09-25 18:59:03 -0700 + + Changes affecting past time stamps + + America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28. + + Shanks says Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01, + not 1920-01-06. The old entry was based on a misinterpretation of Shanks. + + Some more zones have been turned into links, when they differed + from existing zones only for older time stamps. As usual, + these changes affect UTC offsets in pre-1970 time stamps only. + Their old contents have been moved to the 'backzone' file. + The affected zones are: Africa/Blantyre, Africa/Bujumbura, + Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi, + Africa/Lusaka, Africa/Maseru, and Africa/Mbabane. + + Changes affecting code + + zdump -V and -v now output gmtoff= values on all platforms, + not merely on platforms defining TM_GMTOFF. + + The tz library's localtime and mktime functions now set tzname to a value + appropriate for the requested time stamp, and zdump now uses this + on platforms not defining TM_ZONE, fixing a 2014g regression. + (Thanks to Tim Parenti for reporting the problem.) + + The tz library no longer sets tzname if localtime or mktime fails. + + zdump -c no longer mishandles transitions near year boundaries. + (Thanks to Tim Parenti for reporting the problem.) + + An access to uninitialized data has been fixed. + (Thanks to Jörg Richter for reporting the problem.) + + When THREAD_SAFE is defined, the code ports to the C11 memory model. + A memory leak has been fixed if ALL_STATE and THREAD_SAFE are defined + and two threads race to initialize data used by gmtime-like functions. + (Thanks to Andy Heninger for reporting the problems.) + + Changes affecting build procedure + + 'make check' now checks better for properly-sorted data. + + Changes affecting documentation and commentary + + zdump's gmtoff=N output is now documented, and its isdst=D output + is now documented to possibly output D values other than 0 or 1. + + zdump -c's treatment of years is now documented to use the + Gregorian calendar and Universal Time without leap seconds, + and its behavior at cutoff boundaries is now documented better. + (Thanks to Arthur David Olson and Tim Parenti for reporting the problems.) + + Programs are now documented to use the proleptic Gregorian calendar. + (Thanks to Alan Barrett for the suggestion.) + + Fractional-second GMT offsets have been documented for civil time + in 19th-century Chennai, Jakarta, and New York. + + +Release 2014g - 2014-08-28 12:31:23 -0700 + + Changes affecting future time stamps + + Turks & Caicos is switching from US eastern time to UT -04 + year-round, modeled as a switch on 2014-11-02 at 02:00. + [As noted in 2014j, this switch was later delayed.] + + Changes affecting past time stamps + + Time in Russia or the USSR before 1926 or so has been corrected by + a few seconds in the following zones: Asia/Irkutsk, + Asia/Krasnoyarsk, Asia/Omsk, Asia/Samarkand, Asia/Tbilisi, + Asia/Vladivostok, Asia/Yakutsk, Europe/Riga, Europe/Samara. For + Asia/Yekaterinburg the correction is a few minutes. (Thanks to + Vladimir Karpinsky.) + + The Portuguese decree of 1911-05-26 took effect on 1912-01-01. + This affects 1911 time stamps in Africa/Bissau, Africa/Luanda, + Atlantic/Azores, and Atlantic/Madeira. Also, Lisbon's pre-1912 + GMT offset was -0:36:45 (rounded from -0:36:44.68), not -0:36:32. + (Thanks to Stephen Colebourne for pointing to the decree.) + + Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59. + + A new file 'backzone' contains data which may appeal to + connoisseurs of old time stamps, although it is out of scope for + the tz database, is often poorly sourced, and contains some data + that is known to be incorrect. The new file is not recommended + for ordinary use and its entries are not installed by default. + (Thanks to Lester Caine for the high-quality Jersey, Guernsey, and + Isle of Man entries.) + + Some more zones have been turned into links, when they differed + from existing zones only for older time stamps. As usual, + these changes affect UTC offsets in pre-1970 time stamps only. + Their old contents have been moved to the 'backzone' file. + The affected zones are: Africa/Bangui, Africa/Brazzaville, + Africa/Douala, Africa/Kinshasa, Africa/Libreville, Africa/Luanda, + Africa/Malabo, Africa/Niamey, and Africa/Porto-Novo. + + Changes affecting code + + Unless NETBSD_INSPIRED is defined to 0, the tz library now + supplies functions for creating and using objects that represent + time zones. The new functions are tzalloc, tzfree, localtime_rz, + mktime_z, and (if STD_INSPIRED is also defined) posix2time_z and + time2posix_z. They are intended for performance: for example, + localtime_rz (unlike localtime_r) is trivially thread-safe without + locking. (Thanks to Christos Zoulas for proposing NetBSD-inspired + functions, and to Alan Barrett and Jonathan Lennox for helping to + debug the change.) + + zdump now builds with the tz library unless USE_LTZ is defined to 0, + This lets zdump use tz features even if the system library lacks them. + To build zdump with the system library, use 'make CFLAGS=-DUSE_LTZ=0 + TZDOBJS=zdump.o CHECK_TIME_T_ALTERNATIVES='. + + zdump now uses localtime_rz if available, as it's significantly faster, + and it can help zdump better diagnose invalid time zone names. + Define HAVE_LOCALTIME_RZ to 0 to suppress this. HAVE_LOCALTIME_RZ + defaults to 1 if NETBSD_INSPIRED && USE_LTZ. When localtime_rz is + not available, zdump now uses localtime_r and tzset if available, + as this is a bit cleaner and faster than plain localtime. Compile + with -DHAVE_LOCALTIME_R=0 and/or -DHAVE_TZSET=0 if your system + lacks these two functions. + + If THREAD_SAFE is defined to 1, the tz library is now thread-safe. + Although not needed for tz's own applications, which are single-threaded, + this supports POSIX better if the tz library is used in multithreaded apps. + + Some crashes have been fixed when zdump or the tz library is given + invalid or outlandish input. + + The tz library no longer mishandles leap seconds on platforms with + unsigned time_t in time zones that lack ordinary transitions after 1970. + + The tz code now attempts to infer TM_GMTOFF and TM_ZONE if not + already defined, to make it easier to configure on common platforms. + Define NO_TM_GMTOFF and NO_TM_ZONE to suppress this. + + Unless the new macro UNINIT_TRAP is defined to 1, the tz code now + assumes that reading uninitialized memory yields garbage values + but does not cause other problems such as traps. + + If TM_GMTOFF is defined and UNINIT_TRAP is 0, mktime is now + more likely to guess right for ambiguous time stamps near + transitions where tm_isdst does not change. + + If HAVE_STRFTIME_L is defined to 1, the tz library now defines + strftime_l for compatibility with recent versions of POSIX. + Only the C locale is supported, though. HAVE_STRFTIME_L defaults + to 1 on recent POSIX versions, and to 0 otherwise. + + tzselect -c now uses a hybrid distance measure that works better + in Africa. (Thanks to Alan Barrett for noting the problem.) + + The C source code now ports to NetBSD when GCC_DEBUG_FLAGS is used, + or when time_tz is defined. + + When HAVE_UTMPX_H is set the 'date' command now builds on systems + whose <utmpx.h> file does not define WTMPX_FILE, and when setting + the date it updates the wtmpx file if _PATH_WTMPX is defined. + This affects GNU/Linux and similar systems. + + For easier maintenance later, some C code has been simplified, + some lint has been removed, and the code has been tweaked so that + plain 'make' is more likely to work. + + The C type 'bool' is now used for boolean values, instead of 'int'. + + The long-obsolete LOCALE_HOME code has been removed. + + The long-obsolete 'gtime' function has been removed. + + Changes affecting build procedure + + 'zdump' no longer links in ialloc.o, as it's not needed. + + 'make check_time_t_alternatives' no longer assumes GNU diff. + + Changes affecting distribution tarballs + + The files checktab.awk and zoneinfo2tdf.pl are now distributed in + the tzdata tarball instead of the tzcode tarball, since they help + maintain the data. The NEWS and Theory files are now also + distributed in the tzdata tarball, as they're relevant for data. + (Thanks to Alan Barrett for pointing this out.) Also, the + leapseconds.awk file is no longer distributed in the tzcode + tarball, since it belongs in the tzdata tarball (where 2014f + inadvertently also distributed it). + + Changes affecting documentation and commentary + + A new file CONTRIBUTING is distributed. (Thanks to Tim Parenti for + suggesting a CONTRIBUTING file, and to Tony Finch and Walter Harms + for debugging it.) + + The man pages have been updated to use function prototypes, + to document thread-safe variants like localtime_r, and to document + the NetBSD-inspired functions tzalloc, tzfree, localtime_rz, and + mktime_z. + + The fields in Link lines have been renamed to be more descriptive + and more like the parameters of 'ln'. LINK-FROM has become TARGET, + and LINK-TO has become LINK-NAME. + + tz-link.htm mentions the IETF's tzdist working group; Windows + Runtime etc. (thanks to Matt Johnson); and HP-UX's tztab. + + Some broken URLs have been fixed in the commentary. (Thanks to + Lester Caine.) + + Commentary about Philippines DST has been updated, and commentary + on pre-1970 time in India has been added. + + +Release 2014f - 2014-08-05 17:42:36 -0700 + + Changes affecting future time stamps + + Russia will subtract an hour from most of its time zones on 2014-10-26 + at 02:00 local time. (Thanks to Alexander Krivenyshev.) + There are a few exceptions: Magadan Oblast (Asia/Magadan) and Zabaykalsky + Krai are subtracting two hours; conversely, Chukotka Autonomous Okrug + (Asia/Anadyr), Kamchatka Krai (Asia/Kamchatka), Kemerovo Oblast + (Asia/Novokuznetsk), and the Samara Oblast and the Udmurt Republic + (Europe/Samara) are not changing their clocks. The changed zones are + Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd, + Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Krasnoyarsk, + Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok, Asia/Khandyga, + Asia/Sakhalin, and Asia/Ust-Nera; Asia/Magadan will have two hours + subtracted; and Asia/Novokuznetsk's time zone abbreviation is affected, + but not its UTC offset. Two zones are added: Asia/Chita (split + from Asia/Yakutsk, and also with two hours subtracted) and + Asia/Srednekolymsk (split from Asia/Magadan, but with only one hour + subtracted). (Thanks to Tim Parenti for much of the above.) + + Changes affecting time zone abbreviations + + Australian eastern time zone abbreviations are now AEST/AEDT not EST, + and similarly for the other Australian zones. That is, for eastern + standard and daylight saving time the abbreviations are AEST and AEDT + instead of the former EST for both; similarly, ACST/ACDT, ACWST/ACWDT, + and AWST/AWDT are now used instead of the former CST, CWST, and WST. + This change does not affect UTC offsets, only time zone abbreviations. + (Thanks to Rich Tibbett and many others.) + + Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UT +07) + effective 2014-10-26 at 02:00 local time. + + The time zone abbreviation for Xinjiang Time (observed in Ürümqi) + has been changed from URUT to XJT. (Thanks to Luther Ma.) + + Prefer MSK/MSD for Moscow time in Russia, even in other cities. + Similarly, prefer EET/EEST for eastern European time in Russia. + + Change time zone abbreviations in (western) Samoa to use "ST" and + "DT" suffixes, as this is more likely to match common practice. + Prefix "W" to (western) Samoa time when its standard-time offset + disagrees with that of American Samoa. + + America/Metlakatla now uses PST, not MeST, to abbreviate its time zone. + + Time zone abbreviations have been updated for Japan's two time + zones used 1896-1937. JWST now stands for Western Standard + Time, and JCST for Central Standard Time (formerly this was CJT). + These abbreviations are now used for time in Korea, Taiwan, + and Sakhalin while controlled by Japan. + + Changes affecting past time stamps + + China's five zones have been simplified to two, since the post-1970 + differences in the other three seem to have been imaginary. The + zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been + removed; backwards-compatibility links still work, albeit with + different behaviors for time stamps before May 1980. Asia/Urumqi's + 1980 transition to UT +08 has been removed, so that it is now at + +06 and not +08. (Thanks to Luther Ma and to Alois Treindl; + Treindl sent helpful translations of two papers by Guo Qingsheng.) + + Some zones have been turned into links, when they differed from existing + zones only for older UTC offsets where data entries were likely invented. + These changes affect UTC offsets in pre-1970 time stamps only. This is + similar to the change in release 2013e, except this time for western + Africa. The affected zones are: Africa/Bamako, Africa/Banjul, + Africa/Conakry, Africa/Dakar, Africa/Freetown, Africa/Lome, + Africa/Nouakchott, Africa/Ouagadougou, Africa/Sao_Tome, and + Atlantic/St_Helena. This also affects the backwards-compatibility + link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne, + Tim Parenti, and David Patte for reporting problems in earlier + versions of this change.) + + Asia/Shanghai's pre-standard-time UT offset has been changed from + 8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its + transition to standard time has been changed from 1928 to 1901. + + Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01, + then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945. + In 1946 it observed DST from 05-15 through 09-30; in 1947 + from 04-15 through 10-31; and in 1979 from 07-01 through 09-30. + (Thanks to Yu-Cheng Chuang.) + + Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950. + + Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not + 10-03 at 00:00. (Thanks to Konstantin Hyppönen.) + + Pacific/Pago_Pago has been changed from UT -11:30 to -11 for the + period from 1911 to 1950. + + Pacific/Chatham has been changed to New Zealand standard time plus + 45 minutes for the period before 1957, reflecting a 1956 remark in + the New Zealand parliament. + + Europe/Budapest has several pre-1946 corrections: in 1918 the transition + out of DST was on 09-16, not 09-29; in 1919 it was on 11-24, not 09-15; in + 1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08 + not 04-06 at 02:00; and there was no DST in 1920. + + Africa/Accra is now assumed to have observed DST from 1920 through 1935. + + Time in Russia before 1927 or so has been corrected by a few seconds in + the following zones: Europe/Moscow, Asia/Irkutsk, Asia/Tbilisi, + Asia/Tashkent, Asia/Vladivostok, Asia/Yekaterinburg, Europe/Helsinki, and + Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 + point. (Thanks to Vladimir Karpinsky for the Moscow changes.) + + Changes affecting data format + + A new file 'zone1970.tab' supersedes 'zone.tab' in the installed data. + The new file's extended format allows multiple country codes per zone. + The older file is still installed but is deprecated; its format is + not changing and it will still be distributed for a while, but new + applications should use the new file. + + The new file format simplifies maintenance of obscure locations. + To test this, it adds coverage for the Crozet Islands and the + Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) + + The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. + It is still ASCII now, but commentary about the switch has been added. + The new file 'zone1970.tab' already uses UTF-8. + + Changes affecting code + + 'localtime', 'mktime', etc. now use much less stack space if ALL_STATE + is defined. (Thanks to Elliott Hughes for reporting the problem.) + + 'zic' no longer mishandles input when ignoring case in locales that + are not compatible with English, e.g., unibyte Turkish locales when + compiled with HAVE_GETTEXT. + + Error diagnostics of 'zic' and 'yearistype' have been reworded so that + they no longer use ASCII '-' as if it were a dash. + + 'zic' now rejects output file names that contain '.' or '..' components. + (Thanks to Tim Parenti for reporting the problem.) + + 'zic -v' now warns about output file names that do not follow + POSIX rules, or that contain a digit or '.'. (Thanks to Arthur + David Olson for starting the ball rolling on this.) + + Some lint has been removed when using GCC_DEBUG_FLAGS with GCC 4.9.0. + + Changes affecting build procedure + + 'zic' no longer links in localtime.o and asctime.o, as they're not needed. + (Thanks to John Cochran.) + + Changes affecting documentation and commentary + + The 'Theory' file documents legacy names, the longstanding + exceptions to the POSIX-inspired file name rules. + + The 'zic' documentation clarifies the role of time types when + interpreting dates. (Thanks to Arthur David Olson.) + + Documentation and commentary now prefer UTF-8 to US-ASCII, + allowing the use of proper accents in foreign words and names. + Code and data have not changed because of this. (Thanks to + Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug + this.) + + Non-HTML documentation and commentary now use plain-text URLs instead of + HTML insertions, and are more consistent about bracketing URLs when they + are not already surrounded by white space. (Thanks to suggestions by + Steffen Nurpmeso.) + + There is new commentary about Xujiahui Observatory, the five time-zone + project in China from 1918 to 1949, timekeeping in Japanese-occupied + Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the + warlord Jin Shuren in the data. + + Commentary about the coverage of each Russian zone has been standardized. + (Thanks to Tim Parenti). + + There is new commentary about contemporary timekeeping in Ethiopia. + + Obsolete comments about a 2007 proposal for DST in Kuwait has been removed. + + There is new commentary about time in Poland in 1919. + + Proper credit has been given to DST inventor George Vernon Hudson. + + Commentary about time in Metlakatla, AK and Resolute, NU has been + improved, with a new source for the former. + + In zone.tab, Pacific/Easter no longer mentions Salas y Gómez, as it + is uninhabited. + + Commentary about permanent Antarctic bases has been updated. + + Several typos have been corrected. (Thanks to Tim Parenti for + contributing some of these fixes.) + + tz-link.htm now mentions the JavaScript libraries Moment Timezone, + TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up + from Matt Johnson.) Also, it mentions the Go 'latlong' package. + (Thanks to a heads-up from Dirkjan Ochtman.) + + The files usno1988, usno1989, usno1989a, usno1995, usno1997, and usno1998 + have been removed. These obsolescent US Naval Observatory entries were no + longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.) + + +Release 2014e - 2014-06-12 21:53:52 -0700 + + Changes affecting near-future time stamps + + Egypt's 2014 Ramadan-based transitions are June 26 and July 31 at 24:00. + (Thanks to Imed Chihi.) Guess that from 2015 on Egypt will temporarily + switch to standard time at 24:00 the last Thursday before Ramadan, and + back to DST at 00:00 the first Friday after Ramadan. + + Similarly, Morocco's are June 28 at 03:00 and August 2 at 02:00. (Thanks + to Milamber Space Network.) Guess that from 2015 on Morocco will + temporarily switch to standard time at 03:00 the last Saturday before + Ramadan, and back to DST at 02:00 the first Saturday after Ramadan. + + Changes affecting past time stamps + + The abbreviation "MSM" (Moscow Midsummer Time) is now used instead of + "MSD" for Moscow's double daylight time in summer 1921. Also, a typo + "VLASST" has been repaired to be "VLAST" for Vladivostok summer time + in 1991. (Thanks to Hank W. for reporting the problems.) + + Changes affecting commentary + + tz-link.htm now cites RFC 7265 for jCal, mentions PTP and the + draft CalDAV extension, updates URLs for TSP, TZInfo, IATA, and + removes stale pointers to World Time Explorer and WORLDTIME. + + +Release 2014d - 2014-05-27 21:34:40 -0700 + + Changes affecting code + + zic no longer generates files containing time stamps before the Big Bang. + This works around GNOME bug 730332 + <https://bugzilla.gnome.org/show_bug.cgi?id=730332>. + (Thanks to Leonardo Chiquitto for reporting the bug, and to + Arthur David Olson and James Cloos for suggesting improvements to the fix.) + + Changes affecting documentation + + tz-link.htm now mentions GNOME. + + +Release 2014c - 2014-05-13 07:44:13 -0700 + + Changes affecting near-future time stamps + + Egypt observes DST starting 2014-05-15 at 24:00. + (Thanks to Ahmad El-Dardiry and Gunther Vermier.) + Details have not been announced, except that DST will not be observed + during Ramadan. Guess that DST will stop during the same Ramadan dates as + Morocco, and that Egypt's future spring and fall transitions will be the + same as 2010 when it last observed DST, namely April's last Friday at + 00:00 to September's last Thursday at 23:00 standard time. Also, guess + that Ramadan transitions will be at 00:00 standard time. + + Changes affecting code + + zic now generates transitions for minimum time values, eliminating guesswork + when handling low-valued time stamps. (Thanks to Arthur David Olson.) + + Port to Cygwin sans glibc. (Thanks to Arthur David Olson.) + + Changes affecting commentary and documentation + + Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.) + + +Release 2014b - 2014-03-24 21:28:50 -0700 + + Changes affecting near-future time stamps + + Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. + (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. + + New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and + Bengt-Inge Larsson.) This is currently an approximation; a better version + will require the zic and localtime fixes mentioned below, and the plan is + to wait for a while until at least the zic fixes propagate. + + Changes affecting code + + 'zic' and 'localtime' no longer reject locations needing four transitions + per year for the foreseeable future. (Thanks to Andrew Main (Zefram).) + Also, 'zic' avoids some unlikely failures due to integer overflow. + + Changes affecting build procedure + + 'make check' now detects Rule lines defined but never used. + The NZAQ rules, an instance of this problem, have been removed. + + Changes affecting commentary and documentation + + Fix Tuesday/Thursday typo in description of time in Israel. + (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) + + Microsoft Windows 8.1 doesn't support tz database names. (Thanks + to Donald MacQueen.) Instead, the Microsoft Windows Store app + library supports them. + + Add comments about Johnston Island time in the 1960s. + (Thanks to Lyle McElhaney.) + + Morocco's 2014 DST start will be as predicted. + (Thanks to Sebastien Willemijns.) + + +Release 2014a - 2014-03-07 23:30:29 -0800 + + Changes affecting near-future time stamps + + Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for + the heads-up, and to Tim Parenti for simplifying the update.) + + Changes affecting past time stamps + + Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00. + (Thanks to Steffen Thorsen.) + + Ukraine switched from Moscow to Eastern European time on 1990-07-01 + (not 1992-01-01), and observed DST during the entire next winter. + (Thanks to Vladimir in Moscow via Alois Treindl.) + + In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03. + (Thanks to Avigdor Finkelstein.) + + Changes affecting code + + A uninitialized-storage bug in 'localtime' has been fixed. + (Thanks to Logan Chien.) + + Changes affecting the build procedure + + The settings for 'make check_web' now default to Ubuntu 13.10. + + Changes affecting commentary and documentation + + The boundary of the US Pacific time zone is given more accurately. + (Thanks to Alan Mintz.) + + Chile's 2014 DST will be as predicted. (Thanks to José Miguel Garrido.) + + Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Raúl Perasso.) + + Better descriptions of countries with same time zone history as + Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.) + + Several changes affect tz-link.htm, the main web page. + + Mention Time.is (thanks to Even Scharning) and WX-now (thanks to + David Braverman). + + Mention xCal (Internet RFC 6321) and jCal. + + Microsoft has some support for tz database names. + + CLDR data formats include both XML and JSON. + + Mention Maggiolo's map of solar vs standard time. + (Thanks to Arthur David Olson.) + + Mention TZ4Net. (Thanks to Matt Johnson.) + + Mention the timezone-olson Haskell package. + + Mention zeitverschiebung.net. (Thanks to Martin Jäger.) + + Remove moribund links to daylight-savings-time.info and to + Simple Timer + Clocks. + + Update two links. (Thanks to Oscar van Vlijmen.) + + Fix some formatting glitches, e.g., remove random newlines from + abbr elements' title attributes. + + +Release 2013i - 2013-12-17 07:25:23 -0800 + + Changes affecting near-future time stamps: + + Jordan switches back to standard time at 00:00 on December 20, 2013. + The 2006-2011 transition schedule is planned to resume in 2014. + (Thanks to Steffen Thorsen.) + + Changes affecting past time stamps: + + In 2004, Cuba began DST on March 28, not April 4. + (Thanks to Steffen Thorsen.) + + Changes affecting code + + The compile-time flag NOSOLAR has been removed, as nowadays the + benefit of slightly shrinking runtime table size is outweighed by the + cost of disallowing potential future updates that exceed old limits. + + Changes affecting documentation and commentary + + The files solar87, solar88, and solar89 are no longer distributed. + They were a negative experiment - that is, a demonstration that + tz data can represent solar time only with some difficulty and error. + Their presence in the distribution caused confusion, as Riyadh + civil time was generally not solar time in those years. + + tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.) + + +Release 2013h - 2013-10-25 15:32:32 -0700 + + Changes affecting current and future time stamps: + + Libya has switched its UT offset back to +02 without DST, instead + of +01 with DST. (Thanks to Even Scharning.) + + Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. + (Thanks to Gwillim Law.) + + Changes affecting future time stamps: + + Acre and (we guess) western Amazonas will switch from UT -04 to -05 + on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe. + (Thanks to Steffen Thorsen.) + + Add entries for DST transitions in Morocco in the year 2038. + This avoids some year-2038 glitches introduced in 2013g. + (Thanks to Yoshito Umaoka for reporting the problem.) + + Changes affecting API + + The 'tzselect' command no longer requires the 'select' command, + and should now work with /bin/sh on more platforms. It also works + around a bug in BusyBox awk before version 1.21.0. (Thanks to + Patrick 'P. J.' McDermott and Alan Barrett.) + + Changes affecting code + + Fix localtime overflow bugs with 32-bit unsigned time_t. + + zdump no longer assumes sscanf returns maximal values on overflow. + + Changes affecting the build procedure + + The builder can specify which programs to use, if any, instead of + 'ar' and 'ranlib', and libtz.a is now built locally before being + installed. (Thanks to Michael Forney.) + + A dependency typo in the 'zdump' rule has been fixed. + (Thanks to Andrew Paprocki.) + + The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' + work as specified by POSIX.2-1992 or later; this is portable nowadays. + + 'make clean' no longer removes 'leapseconds', since it's + host-independent and is part of the distribution. + + The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. + + Changes affecting documentation and commentary + + tz-link.htm now mentions TC TIMEZONE's draft time zone service protocol + (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). + + Update URLs in tz-link page. Add URLs for Microsoft Windows, since + 8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no + longer maintained) and for old advisories. SOFA now does C. + +Release 2013g - 2013-09-30 21:08:26 -0700 + + Changes affecting current and near-future time stamps + + Morocco now observes DST from the last Sunday in March to the last + Sunday in October, not April to September respectively. (Thanks + to Steffen Thorsen.) + + Changes affecting 'zic' + + 'zic' now runs on platforms that lack both hard links and symlinks. + (Thanks to Theo Veenker for reporting the problem, for MinGW.) + Also, fix some bugs on platforms that lack hard links but have symlinks. + + 'zic -v' again warns that Asia/Tehran has no POSIX environment variable + to predict the far future, fixing a bug introduced in 2013e. + + Changes affecting the build procedure + + The 'leapseconds' file is again put into the tzdata tarball. + Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to + Matt Burgess and Ian Abbott.) The timestamps of these and other + dependent files in tarballs are adjusted more consistently. + + Changes affecting documentation and commentary + + The README file is now part of the data tarball as well as the code. + It now states that files are public domain unless otherwise specified. + (Thanks to Andrew Main (Zefram) for asking for clarifications.) + Its details about the 1989 release moved to a place of honor near + the end of NEWS. + + +Release 2013f - 2013-09-24 23:37:36 -0700 + + Changes affecting near-future time stamps + + Tocantins will very likely not observe DST starting this spring. + (Thanks to Steffen Thorsen.) + + Jordan will likely stay at UT +03 indefinitely, and will not fall + back this fall. + + Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.) + + Changes affecting API + + The types of the global variables 'timezone' and 'altzone' (if present) + have been changed back to 'long'. This is required for 'timezone' + by POSIX, and for 'altzone' by common practice, e.g., Solaris 11. + These variables were originally 'long' in the tz code, but were + mistakenly changed to 'time_t' in 1987; nobody reported the + incompatibility until now. The difference matters on x32, where + 'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.) + + Changes affecting the build procedure + + Avoid long strings in leapseconds.awk to work around a mawk bug. + (Thanks to Cyril Baurand.) + + Changes affecting documentation and commentary + + New file 'NEWS' that contains release notes like this one. + + Paraguay's law does not specify DST transition time; 00:00 is customary. + (Thanks to Waldemar Villamayor-Venialbo.) + + Minor capitalization fixes. + + Changes affecting version-control only + + The experimental GitHub repository now contains annotated and + signed tags for recent releases, e.g., '2013e' for Release 2013e. + Releases are tagged starting with 2012e; earlier releases were + done differently, and tags would either not have a simple name or + not exactly match what was released. + + 'make set-timestamps' is now simpler and a bit more portable. + + +Release 2013e - 2013-09-19 23:50:04 -0700 + + Changes affecting near-future time stamps + + This year Fiji will start DST on October 27, not October 20. + (Thanks to David Wheeler for the heads-up.) For now, guess that + Fiji will continue to spring forward the Sunday before the fourth + Monday in October. + + Changes affecting current and future time zone abbreviations + + Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian + time zone abbreviations since 1932. (Thanks to George Ziegler, + Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and + Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura, + Asia/Makassar, and Asia/Pontianak. + + Use ART (UT -03, standard time), rather than WARST (also -03, but + daylight saving time) for San Luis, Argentina since 2009. + + Changes affecting Godthåb time stamps after 2037 if version mismatch + + Allow POSIX-like TZ strings where the transition time's hour can + range from -167 through 167, instead of the POSIX-required 0 + through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the + new Fiji rules. This is a more-compact way to represent + far-future time stamps for America/Godthab, America/Santiago, + Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem, + Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by + this change. (Derived from a suggestion by Arthur David Olson.) + + Allow POSIX-like TZ strings where daylight saving time is in + effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western + Argentina Summer Time all year. This supports a more-compact way + to represent the 2013d data for America/Argentina/San_Luis. + Because of the change for San Luis noted above this change does not + affect the current data. (Thanks to Andrew Main (Zefram) for + suggestions that improved this change.) + + Where these two TZ changes take effect, there is a minor extension + to the tz file format in that it allows new values for the + embedded TZ-format string, and the tz file format version number + has therefore been increased from 2 to 3 as a precaution. + Version-2-based client code should continue to work as before for + all time stamps before 2038. Existing version-2-based client code + (tzcode, GNU/Linux, Solaris) has been tested on version-3-format + files, and typically works in practice even for time stamps after + 2037; the only known exception is America/Godthab. + + Changes affecting time stamps before 1970 + + Pacific/Johnston is now a link to Pacific/Honolulu. This corrects + some errors before 1947. + + Some zones have been turned into links, when they differ from existing + zones only in older data entries that were likely invented or that + differ only in LMT or transitions from LMT. These changes affect + only time stamps before 1943. The affected zones are: + Africa/Juba, America/Anguilla, America/Aruba, America/Dominica, + America/Grenada, America/Guadeloupe, America/Marigot, + America/Montserrat, America/St_Barthelemy, America/St_Kitts, + America/St_Lucia, America/St_Thomas, America/St_Vincent, + America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for + confirming that the old Europe/Vaduz zone was wrong and the new + link is better for WWII-era times.) + + Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects + America/Cayman, America/Jamaica and America/Grand_Turk time stamps + from 1890 to 1912. + + Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46. + This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks + to Alois Treindl). + + Change the date of the circa-1850 Zurich transition from 1849-09-12 + to 1853-07-16, overriding Shanks with data from Messerli about + postal and telegraph time in Switzerland. + + Changes affecting time zone abbreviations before 1970 + + For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932, + as Jakarta was called Batavia back then. + + Changes affecting API + + The 'zic' command now outputs a dummy transition when far-future + data can't be summarized using a TZ string, and uses a 402-year + window rather than a 400-year window. For the current data, this + affects only the Asia/Tehran file. It does not affect any of the + time stamps that this file represents, so zdump outputs the same + information as before. (Thanks to Andrew Main (Zefram).) + + The 'date' command has a new '-r' option, which lets you specify + the integer time to display, a la FreeBSD. + + The 'tzselect' command has two new options '-c' and '-n', which lets you + select a zone based on latitude and longitude. + + The 'zic' command's '-v' option now warns about constructs that + require the new version-3 binary file format. (Thanks to Arthur + David Olson for the suggestion.) + + Support for floating-point time_t has been removed. + It was always dicey, and POSIX no longer requires it. + (Thanks to Eric Blake for suggesting to the POSIX committee to + remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy + Heninger, Arthur David Olson, and Alois Treindl, for reporting + bugs and elucidating some of the corners of the old floating-point + implementation.) + + The signatures of 'offtime', 'timeoff', and 'gtime' have been + changed back to the old practice of using 'long' to represent UT + offsets. This had been inadvertently and mistakenly changed to + 'int_fast32_t'. (Thanks to Christos Zoulas.) + + The code avoids undefined behavior on integer overflow in some + more places, including gmtime, localtime, mktime and zdump. + + Changes affecting the zdump utility + + zdump now outputs "UT" when referring to Universal Time, not "UTC". + "UTC" does not make sense for time stamps that predate the introduction + of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen + for clarifying UT vs UTC.) + + Data changes affecting behavior of tzselect and similar programs + + Country code BQ is now called the more-common name "Caribbean Netherlands" + rather than the more-official "Bonaire, St Eustatius & Saba". + + Remove from zone.tab the names America/Montreal, America/Shiprock, + and Antarctica/South_Pole, as they are equivalent to existing + same-country-code zones for post-1970 time stamps. The data entries for + these names are unchanged, so the names continue to work as before. + + Changes affecting code internals + + zic -c now runs way faster on 64-bit hosts when given large numbers. + + zic now uses vfprintf to avoid allocating and freeing some memory. + + tzselect now computes the list of continents from the data, + rather than have it hard-coded. + + Minor changes pacify GCC 4.7.3 and GCC 4.8.1. + + Changes affecting the build procedure + + The 'leapseconds' file is now generated automatically from a + new file 'leap-seconds.list', which is a copy of + <ftp://time.nist.gov/pub/leap-seconds.list>. + A new source file 'leapseconds.awk' implements this. + The goal is simplification of the future maintenance of 'leapseconds'. + + When building the 'posix' or 'right' subdirectories, if the + subdirectory would be a copy of the default subdirectory, it is + now made a symbolic link if that is supported. This saves about + 2 MB of file system space. + + The links America/Shiprock and Antarctica/South_Pole have been + moved to the 'backward' file. This affects only nondefault builds + that omit 'backward'. + + Changes affecting version-control only + + .gitignore now ignores 'date'. + + Changes affecting documentation and commentary + + Changes to the 'tzfile' man page + + It now mentions that the binary file format may be extended in + future versions by appending data. + + It now refers to the 'zdump' and 'zic' man pages. + + Changes to the 'zic' man page + + It lists conditions that elicit a warning with '-v'. + + It says that the behavior is unspecified when duplicate names + are given, or if the source of one link is the target of another. + + Its examples are updated to match the latest data. + + The definition of white space has been clarified slightly. + (Thanks to Michael Deckers.) + + Changes to the 'Theory' file + + There is a new section about the accuracy of the tz database, + describing the many ways that errors can creep in, and + explaining why so many of the pre-1970 time stamps are wrong or + misleading (thanks to Steve Allen, Lester Caine, and Garrett + Wollman for discussions that contributed to this). + + The 'Theory' file describes LMT better (this follows a + suggestion by Guy Harris). + + It refers to the 2013 edition of POSIX rather than the 2004 edition. + + It's mentioned that excluding 'backward' should not affect the + other data, and it suggests at least one zone.tab name per + inhabited country (thanks to Stephen Colebourne). + + Some longstanding restrictions on names are documented, e.g., + 'America/New_York' precludes 'America/New_York/Bronx'. + + It gives more reasons for the 1970 cutoff. + + It now mentions which time_t variants are supported, such as + signed integer time_t. (Thanks to Paul Goyette for reporting + typos in an experimental version of this change.) + + (Thanks to Philip Newton for correcting typos in these changes.) + + Documentation and commentary is more careful to distinguish UT in + general from UTC in particular. (Thanks to Steve Allen.) + + Add a better source for the Zurich 1894 transition. + (Thanks to Pierre-Yves Berger.) + + Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.) + + +Release 2013d - 2013-07-05 07:38:01 -0700 + + Changes affecting future time stamps: + + Morocco's midsummer transitions this year are July 7 and August 10, + not July 9 and August 8. (Thanks to Andrew Paprocki.) + + Israel now falls back on the last Sunday of October. + (Thanks to Ephraim Silverberg.) + + Changes affecting past time stamps: + + Specify Jerusalem's location more precisely; this changes the pre-1880 + times by 2 s. + + Changing affecting metadata only: + + Fix typos in the entries for country codes BQ and SX. + + Changes affecting code: + + Rework the code to fix a bug with handling Australia/Macquarie on + 32-bit hosts (thanks to Arthur David Olson). + + Port to platforms like NetBSD, where time_t can be wider than long. + + Add support for testing time_t types other than the system's. + Run 'make check_time_t_alternatives' to try this out. + Currently, the tests fail for unsigned time_t; + this should get fixed at some point. + + Changes affecting documentation and commentary: + + Deemphasize the significance of national borders. + + Update the zdump man page. + + Remove obsolete NOID comment (thanks to Denis Excoffier). + + Update several URLs and comments in the web pages. + + Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler). + + Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka). + + +Release 2013c - 2013-04-19 16:17:40 -0700 + + Changes affecting current and future time stamps: + + Palestine observed DST starting March 29, 2013. (Thanks to + Steffen Thorsen.) From 2013 on, Gaza and Hebron both observe DST, + with the predicted rules being the last Thursday in March at 24:00 + to the first Friday on or after September 21 at 01:00. + + Assume that the recent change to Paraguay's DST rules is permanent, + by moving the end of DST to the 4th Sunday in March every year. + (Thanks to Carlos Raúl Perasso.) + + Changes affecting past time stamps: + + Fix some historical data for Palestine to agree with that of + timeanddate.com, as follows: + + The spring 2008 change in Gaza and Hebron was on 00:00 Mar 28, not + 00:00 Apr 1. + + The fall 2009 change in Gaza and Hebron on Sep 4 was at 01:00, not + 02:00. + + The spring 2010 change in Hebron was 00:00 Mar 26, not 00:01 Mar 27. + + The spring 2011 change in Gaza was 00:01 Apr 1, not 12:01 Apr 2. + + The spring 2011 change in Hebron on Apr 1 was at 00:01, not 12:01. + + The fall 2011 change in Hebron on Sep 30 was at 00:00, not 03:00. + + Fix times of habitation for Macquarie to agree with the Tasmania + Parks & Wildlife Service history, which indicates that permanent + habitation was 1899-1919 and 1948 on. + + Changing affecting metadata only: + + Macquarie Island is politically part of Australia, not Antarctica. + (Thanks to Tobias Conradi.) + + Sort Macquarie more-consistently with other parts of Australia. + (Thanks to Tim Parenti.) + + +Release 2013b - 2013-03-10 22:33:40 -0700 + + Changes affecting current and future time stamps: + + Haiti uses US daylight-saving rules this year, and presumably future years. + This changes time stamps starting today. (Thanks to Steffen Thorsen.) + + Paraguay will end DST on March 24 this year. + (Thanks to Steffen Thorsen.) For now, assume it's just this year. + + Morocco does not observe DST during Ramadan; + try to predict Ramadan in Morocco as best we can. + (Thanks to Erik Homoet for the heads-up.) + + Changes affecting commentary: + + Update URLs in tz-link page. Add URLs for webOS, BB10, iOS. + Update URL for Solaris. Mention Internet RFC 6557. + Update Internet RFCs 2445->5545, 2822->5322. + Switch from FTP to HTTP for Internet RFCs. + + +Release 2013a - 2013-02-27 09:20:35 -0800 + + Change affecting binary data format: + + The zone offset at the end of version-2-format zone files is now + allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthur David Olson.) + + Changes affecting current and future time stamps: + + Chile's 2013 rules, and we guess rules for 2014 and later, will be + the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC. + (Thanks to Steffen Thorsen and Robert Elz.) + + New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen. + (Thanks to Tobias Conradi and Arthur David Olson.) + + Many changes affect historical time stamps before 1940. + These were deduced from: Milne J. Civil time. Geogr J. 1899 + Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>. + + Changes affecting the code: + + Fix zic bug that mishandled Egypt's 2010 changes (this also affected + the data). (Thanks to Arthur David Olson.) + + Fix localtime bug when time_t is unsigned and data files were generated + by a signed time_t system. (Thanks to Doug Bailey for reporting and + to Arthur David Olson for fixing.) + + Allow the email address for bug reports to be set by the packager. + The default is tz@iana.org, as before. (Thanks to Joseph S. Myers.) + + Update HTML checking to be compatible with Ubuntu 12.10. + + Check that files are a safe subset of ASCII. At some point we may + relax this requirement to a safe subset of UTF-8. Without the + check, some non-UTF-8 encodings were leaking into the distribution. + + Commentary changes: + + Restore a comment about copyright notices that was inadvertently deleted. + (Thanks to Arthur David Olson.) + + Improve the commentary about which districts observe what times + in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson). + + Add web page links to tz.js. + + Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.) + + +Release 2012j - 2012-11-12 18:34:49 -0800 + + Libya moved to CET this weekend, but with DST planned next year. + (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.) + + Signatures now have the extension .asc, not .sign, as that's more + standard. (Thanks to Phil Pennock.) + + The output of 'zdump --version', and of 'zic --version', now + uses a format that is more typical for --version. + (Thanks to Joseph S. Myers.) + + The output of 'tzselect --help', 'zdump --help', and 'zic --help' + now uses tz@iana.org rather than the old elsie address. + + zic -v now complains about abbreviations that are less than 3 + or more than 6 characters, as per Posix. Formerly, it checked + for abbreviations that were more than 3. + + 'make public' no longer puts its temporary directory under /tmp, + and uses the just-built zic rather than the system zic. + + Various fixes to documentation and commentary. + + +Release 2012i - 2012-11-03 12:57:09 -0700 + + Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.) + + Linker flags can now be specified via LDFLAGS. + AWK now defaults to 'awk', not 'nawk'. + The shell in tzselect now defaults to /bin/bash, but this can + be overridden by specifying KSHELL. + The main web page now mentions the unofficial GitHub repository. + (Thanks to Mike Frysinger.) + + Tarball signatures can now be built by running 'make signatures'. + There are also new makefile rules 'tarballs', 'check_public', and + separate makefile rules for each tarball and signature file. + A few makefile rules are now more portable to strict POSIX. + + The main web page now lists the canonical IANA URL. + + +Release 2012h - 2012-10-26 22:49:10 -0700 + + Bahia no longer has DST. (Thanks to Kelley Cook.) + + Tocantins has DST. (Thanks to Rodrigo Severo.) + + Israel has new DST rules next year. (Thanks to Ephraim Silverberg.) + + Jordan stays on DST this winter. (Thanks to Steffen Thorsen.) + + Web page updates. + + More C modernization, except that at Arthur David Olson's suggestion + the instances of 'register' were kept. + + +Release 2012g - 2012-10-17 20:59:45 -0700 + + Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.) + + Palestine fall 2012. (Thanks to Steffen Thorsen.) + + Assume C89. + + To attack the version-number problem, this release ships the file + 'Makefile' (which contains the release number) in both the tzcode and + the tzdata tarballs. The two Makefiles are identical, and should be + identical in any matching pair of tarballs, so it shouldn't matter + which order you extract the tarballs. Perhaps we can come up with a + better version-number scheme at some point; this scheme does have the + virtue of not adding more files. + + +Release 2012f - 2012-09-12 23:17:03 -0700 + + * australasia (Pacific/Fiji): Fiji DST is October 21 through January + 20 this year. (Thanks to Steffen Thorsen.) + + +Release 2012e - 2012-08-02 20:44:55 -0700 + + * australasia (Pacific/Fakaofo): Tokelau is UT +13, not +14. + (Thanks to Steffen Thorsen.) + + * Use a single version number for both code and data. + + * .gitignore: New file. + + * Remove trailing white space. + + +Release code2012c-data2012d - 2012-07-19 16:35:33 -0700 + + Changes for Morocco's time stamps, which take effect in a couple of + hours, along with infrastructure changes to accommodate how the tz + code and data are released on IANA. + + +Release data2012c - 2012-03-27 12:17:25 -0400 + + africa + Summer time changes for Morocco (to start late April 2012) + + asia + Changes for 2012 for Gaza & the West Bank (Hebron) and Syria + + northamerica + Haiti following US/Canada rules for 2012 (and we're assuming, + for now anyway, for the future). + + +Release 2012b - 2012-03-02 12:29:15 +0700 + + There is just one change to tzcode2012b (compared with 2012a): + the Makefile that was accidentally included with 2012a has been + replaced with the version that should have been there, which is + identical with the previous version (from tzcode2011i). + + There are just two changes in tzdata2012b compared with 2012a. + + Most significantly, summer time in Cuba has been delayed 3 weeks + (now starts April 1 rather than March 11). Since Mar 11 (the old start + date, as listed in 2012a) is just a little over a week away, this + change is urgent. + + Less importantly, an excess tab in one of the changes in zone.tab + in 2012a has been removed. + + +Release 2012a - 2012-03-01 18:28:10 +0700 + + The changes in tzcode2012a (compared to the previous version, 2011i) + are entirely to the README and tz-art.htm and tz-link.htm files, if + none of those concern you, you can ignore the code update. The changes + reflect the changed addresses for the mailing list and the code and + data distribution points & methods (and a link to DateTime::TimeZone::Tzfile + has been added to tz-link.htm). + + In tzdata2012a (compared to the previous release, which was 2011n) + the major changes are: + Chile 2011/2012 and 2012/2013 summer time date adjustments. + Falkland Islands onto permanent summer time (we're assuming for the + foreseeable future, though 2012 is all we're fairly certain of.) + Armenia has abolished Summer Time. + Tokelau jumped the International Date Line back last December + (just the same as their near neighbour, Samoa). + America/Creston is a new zone for a small area of British Columbia + There will be a leapsecond 2012-06-30 23:59:60 UTC. + + Other minor changes are: + Corrections to 1918 Canadian summer time end dates. + Updated URL for UK time zone history (in comments) + A few typos in Le Corre's list of free French place names (comments) + + +Release data2011n - 2011-10-30 14:57:54 +0700 + + There are three changes of note - most urgently, Cuba (America/Havana) + has extended summer time by two weeks, now to end on Nov 13, rather than + the (already past) Oct 30. Second, the Pridnestrovian Moldavian Republic + (Europe/Tiraspol) decided not to split from the rest of Moldova after + all, and consequently that zone has been removed (again) and reinstated + in the "backward" file as a link to Europe/Chisinau. And third, the + end date for Fiji's summer time this summer was moved forward from the + earlier planned Feb 26, to Jan 22. + + Apart from that, Moldova (MD) returns to a single entry in zone.tab + (and the incorrect syntax that was in the 2011m version of that file + is so fixed - it would have been fixed in a different way had this + change not happened - that's the "missing" sccs version id). + + +Release data2011m - 2011-10-24 21:42:16 +0700 + + In particular, the typos in comments in the data (2011-11-17 should have + been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that + Tim Parenti noted) have been fixed, and the change for Ukraine has been + made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to + Tim Parenti, and also Denys Gavrysh) + + In addition, I added Europe/Tiraspol to zone.tab. + + This time, all the files have new version numbers... (including the files + otherwise unchanged in 2011m that were changed in 2011l but didn't get new + version numbers there...) + + +Release data2011l - 2011-10-10 11:15:43 +0700 + + There are just 2 changes that cause different generated tzdata files from + zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil + is included, but commented out. Compared with the diff I sent out last week, + this version also includes attributions for the sources for the changes + (in much the same format as ado used, but the html tags have not been + checked, verified, or used in any way at all, so if there are errors there, + please let me know.) + + +Release data2011k - 2011-09-20 17:54:03 -0400 + + [not summarized] + + +Release data2011j - 2011-09-12 09:22:49 -0400 + + (contemporary changes for Samoa; past changes for Kenya, Uganda, and + Tanzania); there are also two spelling corrections to comments in + the australasia file (with thanks to Christos Zoulas). + + +Release 2011i - 2011-08-29 05:56:32 -0400 + + [not summarized] + + +Release data2011h - 2011-06-15 18:41:48 -0400 + + Russia and Curaçao changes + + +Release 2011g - 2011-04-25 09:07:22 -0400 + + update the rules for Egypt to reflect its abandonment of DST this year + + +Release 2011f - 2011-04-06 17:14:53 -0400 + + [not summarized] + + +Release 2011e - 2011-03-31 16:04:38 -0400 + + Morocco, Chile, and tz-link changes + + +Release 2011d - 2011-03-14 09:18:01 -0400 + + changes that impact present-day time stamps in Cuba, Samoa, and Turkey + + +Release 2011c - 2011-03-07 09:30:09 -0500 + + These do affect current time stamps in Chile and Annette Island, Canada. + + +Release 2011b - 2011-02-07 08:44:50 -0500 + + [not summarized] + + +Release 2011a - 2011-01-24 10:30:16 -0500 + + [not summarized] + + +Release data2010o - 2010-11-01 09:18:23 -0400 + + change to the end of DST in Fiji in 2011 + + +Release 2010n - 2010-10-25 08:19:17 -0400 + + [not summarized] + + +Release 2010m - 2010-09-27 09:24:48 -0400 + + Hong Kong, Vostok, and zic.c changes + + +Release 2010l - 2010-08-16 06:57:25 -0400 + + [not summarized] + + +Release 2010k - 2010-07-26 10:42:27 -0400 + + [not summarized] + + +Release 2010j - 2010-05-10 09:07:48 -0400 + + changes for Bahía de Banderas and for version naming + + +Release data2010i - 2010-04-16 18:50:45 -0400 + + the end of DST in Morocco on 2010-08-08 + + +Release data2010h - 2010-04-05 09:58:56 -0400 + + [not summarized] + + +Release data2010g - 2010-03-24 11:14:53 -0400 + + [not summarized] + + +Release 2010f - 2010-03-22 09:45:46 -0400 + + [not summarized] + + +Release data2010e - 2010-03-08 14:24:27 -0500 + + corrects the Dhaka bug found by Danvin Ruangchan + + +Release data2010d - 2010-03-06 07:26:01 -0500 + + [not summarized] + + +Release 2010c - 2010-03-01 09:20:58 -0500 + + changes including KRE's suggestion for earlier initialization of + "goahead" and "goback" structure elements + + +Release code2010a - 2010-02-16 10:40:04 -0500 + + [not summarized] + + +Release data2010b - 2010-01-20 12:37:01 -0500 + + Mexico changes + + +Release data2010a - 2010-01-18 08:30:04 -0500 + + changes to Dhaka + + +Release data2009u - 2009-12-26 08:32:28 -0500 + + changes to DST in Bangladesh + + +Release 2009t - 2009-12-21 13:24:27 -0500 + + [not summarized] + + +Release data2009s - 2009-11-14 10:26:32 -0500 + + (cosmetic) Antarctica change and the DST-in-Fiji-in-2009-and-2010 change + + +Release 2009r - 2009-11-09 10:10:31 -0500 + + "antarctica" and "tz-link.htm" changes + + +Release 2009q - 2009-11-02 09:12:40 -0500 + + with two corrections as reported by Eric Muller and Philip Newton + + +Release data2009p - 2009-10-23 15:05:27 -0400 + + Argentina (including San Luis) changes (with the correction from + Mariano Absatz) + + +Release data2009o - 2009-10-14 16:49:38 -0400 + + Samoa (commentary only), Pakistan, and Bangladesh changes + + +Release data2009n - 2009-09-22 15:13:38 -0400 + + added commentary for Argentina and a change to the end of DST in + 2009 in Pakistan + + +Release data2009m - 2009-09-03 10:23:43 -0400 + + Samoa and Palestine changes + + +Release data2009l - 2009-08-14 09:13:07 -0400 + + Samoa (comments only) and Egypt + + +Release 2009k - 2009-07-20 09:46:08 -0400 + + [not summarized] + + +Release data2009j - 2009-06-15 06:43:59 -0400 + + Bangladesh change (with a short turnaround since the DST change is + impending) + + +Release 2009i - 2009-06-08 09:21:22 -0400 + + updating for DST in Bangladesh this year + + +Release 2009h - 2009-05-26 09:19:14 -0400 + + [not summarized] + + +Release data2009g - 2009-04-20 16:34:07 -0400 + + Cairo + + +Release data2009f - 2009-04-10 11:00:52 -0400 + + correct DST in Pakistan + + +Release 2009e - 2009-04-06 09:08:11 -0400 + + [not summarized] + + +Release 2009d - 2009-03-23 09:38:12 -0400 + + Morocco, Tunisia, Argentina, and American Astronomical Society changes + + +Release data2009c - 2009-03-16 09:47:51 -0400 + + change to the start of Cuban DST + + +Release 2009b - 2009-02-09 11:15:22 -0500 + + [not summarized] + + +Release 2009a - 2009-01-21 10:09:39 -0500 + + [not summarized] + + +Release data2008i - 2008-10-21 12:10:25 -0400 + + southamerica and zone.tab files, with Argentina DST rule changes and + United States zone reordering and recommenting + + +Release 2008h - 2008-10-13 07:33:56 -0400 + + [not summarized] + + +Release 2008g - 2008-10-06 09:03:18 -0400 + + Fix a broken HTML anchor and update Brazil's DST transitions; + there's also a slight reordering of information in tz-art.htm. + + +Release data2008f - 2008-09-09 22:33:26 -0400 + + [not summarized] + + +Release 2008e - 2008-07-28 14:11:17 -0400 + + changes by Arthur David Olson and Jesper Nørgaard Welen + + +Release data2008d - 2008-07-07 09:51:38 -0400 + + changes by Arthur David Olson, Paul Eggert, and Rodrigo Severo + + +Release data2008c - 2008-05-19 17:48:03 -0400 + + Pakistan, Morocco, and Mongolia + + +Release data2008b - 2008-03-24 08:30:59 -0400 + + including renaming Asia/Calcutta to Asia/Kolkata, with a backward + link provided + + +Release 2008a - 2008-03-08 05:42:16 -0500 + + [not summarized] + + +Release 2007k - 2007-12-31 10:25:22 -0500 + + most importantly, changes to the "southamerica" file based on + Argentina's readoption of daylight saving time + + +Release 2007j - 2007-12-03 09:51:01 -0500 + + 1. eliminate the "P" (parameter) macro; + + 2. the "noncontroversial" changes circulated on the time zone + mailing list (less the changes to "logwtmp.c"); + + 3. eliminate "too many transition" errors when "min" is used in time + zone rules; + + 4. changes by Paul Eggert (including updated information for Venezuela). + + +Release data2007i - 2007-10-30 10:28:11 -0400 + + changes for Cuba and Syria + + +Release 2007h - 2007-10-01 10:05:51 -0400 + + changes by Paul Eggert, as well as an updated link to the ICU + project in tz-link.htm + + +Release 2007g - 2007-08-20 10:47:59 -0400 + + changes by Paul Eggert + + The "leapseconds" file has been updated to incorporate the most + recent International Earth Rotation and Reference Systems Service + (IERS) bulletin. + + There's an addition to tz-art.htm regarding the television show "Medium". + + +Release 2007f - 2007-05-07 10:46:46 -0400 + + changes by Paul Eggert (including Haiti, Turks and Caicos, and New + Zealand) + + changes to zic.c to allow hour values greater than 24 (along with + Paul's improved time value overflow checking) + + +Release 2007e - 2007-04-02 10:11:52 -0400 + + Syria and Honduras changes by Paul Eggert + + zic.c variable renaming changes by Arthur David Olson + + +Release 2007d - 2007-03-20 08:48:30 -0400 + + changes by Paul Eggert + + the elimination of white space at the ends of lines + + +Release 2007c - 2007-02-26 09:09:37 -0500 + + changes by Paul Eggert + + +Release 2007b - 2007-02-12 09:34:20 -0500 + + Paul Eggert's proposed change to the quotation handling logic in zic.c. + + changes to the commentary in "leapseconds" reflecting the IERS + announcement that there is to be no positive leap second at the end + of June 2007. + + +Release 2007a - 2007-01-08 12:28:29 -0500 + + changes by Paul Eggert + + Derick Rethan's Asmara change + + Oscar van Vlijmen's Easter Island local mean time change + + symbolic link changes + + +Release 2006p - 2006-11-27 08:54:27 -0500 + + changes by Paul Eggert + + +Release 2006o - 2006-11-06 09:18:07 -0500 + + changes by Paul Eggert + + +Release 2006n - 2006-10-10 11:32:06 -0400 + + changes by Paul Eggert + + +Release 2006m - 2006-10-02 15:32:35 -0400 + + changes for Uruguay, Palestine, and Egypt by Paul Eggert + + (minimalist) changes to zic.8 to clarify "until" information + + +Release data2006l - 2006-09-18 12:58:11 -0400 + + Paul's best-effort work on this coming weekend's Egypt time change + + +Release 2006k - 2006-08-28 12:19:09 -0400 + + changes by Paul Eggert + + +Release 2006j - 2006-08-21 09:56:32 -0400 + + changes by Paul Eggert + + +Release code2006i - 2006-08-07 12:30:55 -0400 + + localtime.c fixes + + Ken Pizzini's conversion script + + +Release code2006h - 2006-07-24 09:19:37 -0400 + + adds public domain notices to four files + + includes a fix for transition times being off by a second + + adds a new recording to the "arts" file (information courtesy Colin Bowern) + + +Release 2006g - 2006-05-08 17:18:09 -0400 + + northamerica changes by Paul Eggert + + +Release 2006f - 2006-05-01 11:46:00 -0400 + + a missing version number problem is fixed (with thanks to Bradley + White for catching the problem) + + +Release 2006d - 2006-04-17 14:33:43 -0400 + + changes by Paul Eggert + + added new items to tz-arts.htm that were found by Paul + + +Release 2006c - 2006-04-03 10:09:32 -0400 + + two sets of data changes by Paul Eggert + + a fencepost error fix in zic.c + + changes to zic.c and the "europe" file to minimize differences + between output produced by the old 32-bit zic and the new 64-bit + version + + +Release 2006b - 2006-02-20 10:08:18 -0500 + [tz32code2006b + tz64code2006b + tzdata2006b] + + 64-bit code + + All SCCS IDs were bumped to "8.1" for this release. + + +Release 2006a - 2006-01-30 08:59:31 -0500 + + changes by Paul Eggert (in particular, Indiana time zone moves) + + an addition to the zic manual page to describe how special-case + transitions are handled + + +Release 2005r - 2005-12-27 09:27:13 -0500 + + Canadian changes by Paul Eggert + + They also add "<pre>" directives to time zone data files and reflect + changes to warning message logic in "zdump.c" (but with calls to + "gettext" kept unbundled at the suggestion of Ken Pizzini). + + +Release 2005q - 2005-12-13 09:17:09 -0500 + + Nothing earth-shaking here: + 1. Electronic mail addresses have been removed. + 2. Casts of the return value of exit have been removed. + 3. Casts of the argument of is.* macros have been added. + 4. Indentation in one section of zic.c has been fixed. + 5. References to dead URLs in the data files have been dealt with. + + +Release 2005p - 2005-12-05 10:30:53 -0500 + + "systemv", "tz-link.htm", and "zdump.c" changes + (less the casts of arguments to the is* macros) + + +Release 2005o - 2005-11-28 10:55:26 -0500 + + Georgia, Cuba, Nicaragua, and Jordan changes by Paul Eggert + + zdump.c lint fixes by Arthur David Olson + + +Release 2005n - 2005-10-03 09:44:09 -0400 + + changes by Paul Eggert (both the Uruguay changes and the Kyrgyzstan + et al. changes) + + +Release 2005m - 2005-08-29 12:15:40 -0400 + + changes by Paul Eggert (with a small tweak to the tz-art change) + + a declaration of an unused variable has been removed from zdump.c + + +Release 2005l - 2005-08-22 12:06:39 -0400 + + changes by Paul Eggert + + overflow/underflow checks by Arthur David Olson, minus changes to + the "Theory" file about the pending addition of 64-bit data (I grow + less confident of the changes being accepted with each passing day, + and the changes no longer increase the data files nine-fold--there's + less than a doubling in size by my local Sun's reckoning) + + +Release 2005k - 2005-07-14 14:14:24 -0400 + + The "leapseconds" file has been edited to reflect the recently + announced leap second at the end of 2005. + + I've also deleted electronic mail addresses from the files as an + anti-spam measure. + + +Release 2005j - 2005-06-13 14:34:13 -0400 + + These reflect changes to limit the length of time zone abbreviations + and the characters used in those abbreviations. + + There are also changes to handle POSIX-style "quoted" time zone + environment variables. + + The changes were circulated on the time zone mailing list; the only + change since then was the removal of a couple of minimum-length of + abbreviation checks. + + +Release data2005i - 2005-04-21 15:04:16 -0400 + + changes (most importantly to Nicaragua and Haiti) by Paul Eggert + + +Release 2005h - 2005-04-04 11:24:47 -0400 + + changes by Paul Eggert + + minor changes to Makefile and zdump.c to produce more useful output + when doing a "make typecheck" + + +Release 2005g - 2005-03-14 10:11:21 -0500 + + changes by Paul Eggert (a change to current DST rules in Uruguay and + an update to a link to time zone software) + + +Release 2005f - 2005-03-01 08:45:32 -0500 + + data and documentation changes by Paul Eggert + + +Release 2005e - 2005-02-10 15:59:44 -0500 + + [not summarized] + + +Release code2005d - 2005-01-31 09:21:47 -0500 + + make zic complain about links to links if the -v flag is used + + have "make public" do more code checking + + add an include to "localtime.c" for the benefit of gcc systems + + +Release 2005c - 2005-01-17 18:36:29 -0500 + + get better results when mktime runs on a system where time_t is double + + changes to the data files (most importantly to Paraguay) + + +Release 2005b - 2005-01-10 09:19:54 -0500 + + Get localtime and gmtime working on systems with exotic time_t types. + + Update the leap second commentary in the "leapseconds" file. + + +Release 2005a - 2005-01-01 13:13:44 -0500 + + [not summarized] + + +Release code2004i - 2004-12-14 13:42:58 -0500 + + Deal with systems where time_t is unsigned. + + +Release code2004h - 2004-12-07 11:40:18 -0500 + + 64-bit-time_t changes + + +Release 2004g - 2004-11-02 09:06:01 -0500 + + update to Cuba (taking effect this weekend) + + other changes by Paul Eggert + + correction of the spelling of Oslo + + changed versions of difftime.c and private.h + + +Release code2004f - 2004-10-21 10:25:22 -0400 + + Cope with wide-ranging tm_year values. + + +Release 2004e - 2004-10-11 14:47:21 -0400 + + Brazil/Argentina/Israel changes by Paul Eggert + + changes to tz-link.htm by Paul + + one small fix to Makefile + + +Release 2004d - 2004-09-22 08:27:29 -0400 + + Avoid overflow problems when TM_YEAR_BASE is added to an integer. + + +Release 2004c - 2004-08-11 12:06:26 -0400 + + asctime-related changes + + (variants of) some of the documentation changes suggested by Paul Eggert + + +Release 2004b - 2004-07-19 14:33:35 -0400 + + data changes by Paul Eggert - most importantly, updates for Argentina + + +Release 2004a - 2004-05-27 12:00:47 -0400 + + changes by Paul Eggert + + Handle DST transitions that occur at the end of a month in some + years but at the start of the following month in other years. + + Add a copy of the correspondence that's the basis for claims about + DST in the Navajo Nation. + + +Release 2003e - 2003-12-15 09:36:47 -0500 + + changes by Arthur David Olson (primarily code changes) + + changes by Paul Eggert (primarily data changes) + + minor changes to "Makefile" and "northamerica" (in the latter case, + optimization of the "Toronto" rules) + + +Release 2003d - 2003-10-06 09:34:44 -0400 + + changes by Paul Eggert + + +Release 2003c - 2003-09-16 10:47:05 -0400 + + Fix bad returns in zic.c's inleap function. + Thanks to Bradley White for catching the problem! + + +Release 2003b - 2003-09-16 07:13:44 -0400 + + Add a "--version" option (and documentation) to the zic and zdump commands. + + changes to overflow/underflow checking in zic + + a localtime typo fix. + + Update the leapseconds and tz-art.htm files. + + +Release 2003a - 2003-03-24 09:30:54 -0500 + + changes by Paul Eggert + + a few additions and modifications to the tz-art.htm file + + +Release 2002d - 2002-10-15 13:12:42 -0400 + + changes by Paul Eggert, less the "Britain (UK)" change in iso3166.tab + + There's also a new time zone quote in "tz-art.htm". + + +Release 2002c - 2002-04-04 11:55:20 -0500 + + changes by Paul Eggert + + Change zic.c to avoid creating symlinks to files that don't exist. + + +Release 2002b - 2002-01-28 12:56:03 -0500 + + [These change notes are for Release 2002a, which was corrupted. + 2002b was a corrected version of 2002a.] + + changes by Paul Eggert + + Update the "leapseconds" file to note that there'll be no leap + second at the end of June, 2002. + + Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone. + + Change to "difftime.c" to avoid sizeof problems. + + +Release 2001d - 2001-10-09 13:31:32 -0400 + + changes by Paul Eggert + + +Release 2001c - 2001-06-05 13:59:55 -0400 + + changes by Paul Eggert and Andrew Brown + + +Release 2001b - 2001-04-05 16:44:38 -0400 + + changes by Paul Eggert (modulo jnorgard's typo fix) + + tz-art.htm has been HTMLified. + + +Release 2001a - 2001-03-13 12:57:44 -0500 + + changes by Paul Eggert + + An addition to the "leapseconds" file: comments with the text of the + latest IERS leap second notice. + + Trailing white space has been removed from data file lines, and + repeated spaces in "Rule Jordan" lines in the "asia" file have been + converted to tabs. + + +Release 2000h - 2000-12-14 15:33:38 -0500 + + changes by Paul Eggert + + one typo fix in the "art" file + + With providence, this is the last update of the millennium. + + +Release 2000g - 2000-10-10 11:35:22 -0400 + + changes by Paul Eggert + + correction of John Mackin's name submitted by Robert Elz + + Garry Shandling's Daylight Saving Time joke (!?!) from the recent + Emmy Awards broadcast. + + +Release 2000f - 2000-08-10 09:31:58 -0400 + + changes by Paul Eggert + + Added information in "tz-art.htm" on a Seinfeld reference to DST. + + Error checking and messages in the "yearistype" script have been + improved. + + +Release 2000e - 2000-07-31 09:27:54 -0400 + + data changes by Paul Eggert + + a change to the default value of the defined constant HAVE_STRERROR + + the addition of a Dave Barry quote on DST to the tz-arts file + + +Release 2000d - 2000-04-20 15:43:04 -0400 + + changes to the documentation and code of strftime for C99 conformance + + a bug fix for date.c + + These are based on (though modified from) changes by Paul Eggert. + + +Release 2000c - 2000-03-04 10:31:43 -0500 + + changes by Paul Eggert + + +Release 2000b - 2000-02-21 12:16:29 -0500 + + changes by Paul Eggert and Joseph Myers + + modest tweaks to the tz-art.htm and tz-link.htm files + + +Release 2000a - 2000-01-18 09:21:26 -0500 + + changes by Paul Eggert + + The two hypertext documents have also been renamed. + + +Release code1999i-data1999j - 1999-11-15 18:43:22 -0500 + + Paul Eggert's changes + + additions to the "zic" manual page and the "Arts.htm" file + + +Release code1999h-data1999i - 1999-11-08 14:55:21 -0500 + + [not summarized] + + +Release data1999h - 1999-10-07 03:50:29 -0400 + + changes by Paul Eggert to "europe" (most importantly, fixing + Lithuania and Estonia) + + +Release 1999g - 1999-09-28 11:06:18 -0400 + + data changes by Paul Eggert (most importantly, the change for + Lebanon that buys correctness for this coming Sunday) + + The "code" file contains changes to "Makefile" and "checktab.awk" to + allow better checking of time zone files before they are published. + + +Release 1999f - 1999-09-23 09:48:14 -0400 + + changes by Arthur David Olson and Paul Eggert + + +Release 1999e - 1999-08-17 15:20:54 -0400 + + changes circulated by Paul Eggert, although the change to handling + of DST-specifying time zone names has been commented out for now + (search for "XXX" in "localtime.c" for details). These files also + do not make any changes to the start of DST in Brazil. + + In addition to Paul's changes, there are updates to "Arts.htm" and + cleanups of URLs. + + +Release 1999d - 1999-03-30 11:31:07 -0500 + + changes by Paul Eggert + + The Makefile's "make public" rule has also been changed to do a test + compile of each individual time zone data file (which should help + avoid problems such as the one we had with Nicosia). + + +Release 1999c - 1999-03-25 09:47:47 -0500 + + changes by Paul Eggert, most importantly the change for Chile. + + +Release 1999b - 1999-02-01 17:51:44 -0500 + + changes by Paul Eggert + + code changes (suggested by Mani Varadarajan, mani at be.com) for + correct handling of symbolic links when building using a relative directory + + code changes to generate correct messages for failed links + + updates to the URLs in Arts.htm + + +Release 1999a - 1999-01-19 16:20:29 -0500 + + error message internationalizations and corrections in zic.c and + zdump.c (as suggested by Vladimir Michl, vladimir.michl at upol.cz, + to whom thanks!) + + +Release code1998h-data1998i - 1998-10-01 09:56:10 -0400 + + changes for Brazil, Chile, and Germany + + support for use of "24:00" in the input files for the time zone compiler + + +Release code1998g-data1998h - 1998-09-24 10:50:28 -0400 + + changes by Paul Eggert + + correction to a define in the "private.h" file + + +Release data1998g - 1998-08-11 03:28:35 -0000 + [tzdata1998g.tar.gz is missing!] + + Lithuanian change provided by mgedmin at pub.osf.it + + Move creation of the GMT link with Etc/GMT to "etcetera" (from + "backward") to ensure that the GMT file is created even where folks + don't want the "backward" links (as suggested by Paul Eggert). + + +Release data1998f - 1998-07-20 13:50:00 -0000 + [tzdata1998f.tar.gz is missing!] + + Update the "leapseconds" file to include the newly-announced + insertion at the end of 1998. + + +Release code1998f - 1998-06-01 10:18:31 -0400 + + addition to localtime.c by Guy Harris + + +Release 1998e - 1998-05-28 09:56:26 -0400 + + The Makefile is changed to produce zoneinfo-posix rather than + zoneinfo/posix, and to produce zoneinfo-leaps rather than + zoneinfo/right. + + data changes by Paul Eggert + + changes from Guy Harris to provide asctime_r and ctime_r + + A usno1998 file (substantially identical to usno1997) has been added. + + +Release 1998d - 1998-05-14 11:58:34 -0400 + + changes to comments (in particular, elimination of references to CIA maps). + "Arts.htm", "WWW.htm", "asia", and "australasia" are the only places + where changes occur. + + +Release 1998c - 1998-02-28 12:32:26 -0500 + + changes by Paul Eggert (save the "French correction," on which I'll + wait for the dust to settle) + + symlink changes + + changes and additions to Arts.htm + + +Release 1998b - 1998-01-17 14:31:51 -0500 + + URL cleanups and additions + + +Release 1998a - 1998-01-13 12:37:35 -0500 + + changes by Paul Eggert + + +Release code1997i-data1997k - 1997-12-29 09:53:41 -0500 + + changes by Paul Eggert, with minor modifications from Arthur David + Olson to make the files more browser friendly + + +Release code1997h-data1997j - 1997-12-18 17:47:35 -0500 + + minor changes to put "TZif" at the start of each time zone information file + + a rule has also been added to the Makefile so you can + make zones + to just recompile the zone information files (rather than doing a + full "make install" with its other effects). + + +Release data1997i - 1997-10-07 08:45:38 -0400 + + changes to Africa by Paul Eggert + + +Release code1997g-data1997h - 1997-09-04 16:56:54 -0400 + + corrections for Uruguay (and other locations) + + Arthur David Olson's simple-minded fix allowing mktime to both + correctly handle leap seconds and correctly handle tm_sec values + upon which arithmetic has been performed. + + +Release code1997f-data1997g - 1997-07-19 13:15:02 -0400 + + Paul Eggert's updates + + a small change to a function prototype; + + "Music" has been renamed "Arts.htm", HTMLified, and augmented to + include information on Around the World in Eighty Days. + + +Release code1997e-data1997f - 1997-05-03 18:52:34 -0400 + + fixes to zic's error handling + + changes inspired by the item circulated on Slovenia + + The description of Web resources has been HTMLified for browsing + convenience. + + A new piece of tz-related music has been added to the "Music" file. + + +Release code1997d-data1997e - 1997-03-29 12:48:52 -0500 + + Paul Eggert's latest suggestions + + +Release code1997c-data1997d - 1997-03-07 20:37:54 -0500 + + changes to "zic.c" to correct performance of the "-s" option + + a new file "usno1997" + + +Release data1997c - 1997-03-04 09:58:18 -0500 + + changes in Israel + + +Release 1997b - 1997-02-27 18:34:19 -0500 + + The data file incorporates the 1997 leap second. + + The code file incorporates Arthur David Olson's take on the + zic/multiprocessor/directory-creation situation. + + +Release 1997a - 1997-01-21 09:11:10 -0500 + + Paul Eggert's Antarctica (and other changes) + + Arthur David Olson finessed the "getopt" issue by checking against + both -1 and EOF (regardless of POSIX, SunOS 4.1.1's manual says -1 + is returned while SunOS 5.5's manual says EOF is returned). + + +Release code1996o-data1996n - 1996-12-27 21:42:05 -0500 + + Paul Eggert's latest changes + + +Release code1996n - 1996-12-16 09:42:02 -0500 + + link snapping fix from Bruce Evans (via Garrett Wollman) + + +Release data1996m - 1996-11-24 02:37:34 -0000 + [tzdata1996m.tar.gz is missing!] + + Paul Eggert's batch of changes + + +Release code1996m-data1996l - 1996-11-05 14:00:12 -0500 + + No functional changes here; the files have simply been changed to + make more use of ISO style dates in comments. The names of the above + files now include the year in full. + + +Release code96l - 1996-09-08 17:12:20 -0400 + + tzcode96k was missing a couple of pieces. + + +Release 96k - 1996-09-08 16:06:22 -0400 + + the latest round of changes from Paul Eggert + + the recent Year 2000 material + + +Release code96j - 1996-07-30 13:18:53 -0400 + + Set sp->typecnt as suggested by Timothy Patrick Murphy. + + +Release code96i - 1996-07-27 20:11:35 -0400 + + Paul's suggested patch for strftime %V week numbers + + +Release data96i - 1996-07-01 18:13:04 -0400 + + "northamerica" and "europe" changes by Paul Eggert + + +Release code96h - 1996-06-05 08:02:21 -0400 + + fix for handling transitions specified in Universal Time + + Some "public domain" notices have also been added. + + +Release code96g - 1996-05-16 14:00:26 -0400 + + fix for the simultaneous-DST-and-zone-change challenge + + +Release data96h - 1996-05-09 17:40:51 -0400 + + changes by Paul Eggert + + +Release code96f-data96g - 1996-05-03 03:09:59 -0000 + [tzcode96f.tar.gz + tzdata96g.tar.gz are both missing!] + + The changes get us some of the way to fixing the problems noted in Paul + Eggert's letter yesterday (in addition to a few others). The approach + has been to make zic a bit smarter about figuring out what time zone + abbreviations apply just after the time specified in the "UNTIL" part + of a zone line. Putting the smarts in zic means avoiding having + transition times show up in both "Zone" lines and "Rule" lines, which + in turn avoids multiple transition time entries in time zone files. + (This also makes the zic input files such as "europe" a bit shorter and + should ease maintenance.) + + +Release data96f - 1996-04-19 19:20:03 -0000 + [tzdata96f.tar.gz is missing!] + + The only changes are to the "northamerica" file; the time zone + abbreviation for Denver is corrected to MST (and MDT), and the + comments for Mexico have been updated. + + +Release data96e - 1996-03-19 17:37:26 -0500 + + Proposals by Paul Eggert, in particular the Portugal change that + comes into play at the end of this month. + + +Release data96d - 1996-03-18 20:49:39 -0500 + + [not summarized] + + +Release code96e - 1996-02-29 15:43:27 -0000 + [tzcode96e.tar.gz is missing!] + + internationalization changes and the fix to the documentation for strftime + + +Release code96d-data96c - 1996-02-12 11:05:27 -0500 + + The "code" file simply updates Bob Kridle's electronic address. + + The "data" file updates rules for Mexico. + + +Release data96b - 1996-01-27 15:44:42 -0500 + + Kiribati change + + +Release code96c - 1996-01-16 16:58:15 -0500 + + leap-year streamlining and binary-search changes + + fix to newctime.3 + + +Release code96b - 1996-01-10 20:42:39 -0500 + + fixes and enhancements from Paul Eggert, including code that + emulates the behavior of recent versions of the SunOS "date" + command. + + +Release 96a - 1996-01-06 09:08:24 -0500 + + Israel updates + + fixes to strftime.c for correct ISO 8601 week number generation, + plus support for two new formats ('G' and 'g') to give ISO 8601 year + numbers (which are not necessarily the same as calendar year numbers) + + +Release code95i-data95m - 1995-12-21 12:46:47 -0500 + + The latest revisions from Paul Eggert are included, the usno1995 + file has been updated, and a new file ("WWW") covering useful URLs + has been added. + + +Release code95h-data95l - 1995-12-19 18:10:12 -0500 + + A simplification of a macro definition, a change to data for Sudan, + and (for last minute shoppers) notes in the "Music" file on the CD + "Old Man Time". + + +Release code95g-data95k - 1995-10-30 10:32:47 -0500 + + (slightly reformatted) 8-bit-clean proposed patch + + minor patch: US/Eastern -> America/New_York + + snapshot of the USNO's latest data ("usno1995") + + some other minor cleanups + + +Release code95f-data95j - 1995-10-28 21:01:34 -0000 + [tzcode95f.tar.gz + tzdata95j.tar.gz are both missing!] + + European cleanups + + support for 64-bit time_t's + + optimization in localtime.c + + +Release code95e - 1995-10-13 13:23:57 -0400 + + the mktime change to scan from future to past when trying to find time zone + offsets + + +Release data95i - 1995-09-26 10:43:26 -0400 + + For Canada/Central, guess that the Sun customer's "one week too + early" was just a approximation, and the true error is one month + too early. This is consistent with the rest of Canada. + + +Release data95h - 1995-09-21 11:26:48 -0400 + + latest changes from Paul Eggert + + +Release code95d - 1995-09-14 11:14:45 -0400 + + the addition of a "Music" file, which documents four recorded + versions of the tune "Save That Time". + + +Release data95g - 1995-09-01 17:21:36 -0400 + + "yearistype" correction + + +Release data95f - 1995-08-28 20:46:56 -0400 + + Paul Eggert's change to the australasia file + + +Release data95e - 1995-07-08 18:02:34 -0400 + + The only change is a leap second at the end of this year. + Thanks to Bradley White for forwarding news on the leap second. + + +Release data95d - 1995-07-03 13:26:22 -0400 + + Paul Eggert's changes + + +Release data95c - 1995-07-02 19:19:28 -0400 + + changes to "asia", "backward", "europe", and "southamerica" + (read: northamericacentrics need not apply) + + +Release code95c - 1995-03-13 14:00:46 -0500 + + one-line fix for sign extension problems in detzcode + + +Release 95b - 1995-03-04 11:22:38 -0500 + + Minor changes in both: + + The "code" file contains a workaround for the lack of "unistd.h" in + Microsoft C++ version 7. + + The "data" file contains a fixed "Link" for America/Shiprock. + + +Release 94h - 1994-12-10 12:51:14 -0500 + + The files: + + * incorporate the changes to "zdump" and "date" to make changes to + the "TZ" environment variable permanent; + + * incorporate the table changes by Paul Eggert; + + * include (and document) support for universal time specifications in + data files - but do not (yet) include use of this feature in the + data files. + + Think of this as "TZ Classic" - the software has been set up not to break if + universal time shows up in its input, and data entries have been + left as is so as not to break existing implementations. + + +Release data94f - 1994-08-20 12:56:09 -0400 + + (with thanks!) the latest data updates from Paul Eggert + + +Release data94e - 1994-06-04 13:13:53 -0400 + + [not summarized] + + +Release code94g - 1994-05-05 12:14:07 -0400 + + fix missing "optind.c" and a reference to it in the Makefile + + +Release code94f - 1994-05-05 13:00:33 -0000 + [tzcode94f.tar.gz is missing!] + + changes to avoid overflow in difftime, as well as changes to cope + with the 52/53 challenge in strftime + + +Release code94e - 1994-03-30 23:32:59 -0500 + + change for the benefit of PCTS + + +Release 94d - 1994-02-24 15:42:25 -0500 + + Avoid clashes with POSIX semantics for zones such as GMT+4. + + Some other very minor housekeeping is also present. + + +Release code94c - 1994-02-10 08:52:40 -0500 + + Fix bug where mkdirs was broken unless you compile with + -fwritable-strings (which is generally losing to do). + + +Release 94b - 1994-02-07 10:04:33 -0500 + + work by Paul Eggert who notes: + + I found another book of time zone histories by E W Whitman; it's not + as extensive as Shanks but has a few goodies of its own. I used it + to update the tables. I also fixed some more as a result of + correspondence with Adam David and Peter Ilieve, and move some stray + links from 'europe' to 'backward'. I corrected some scanning errors + in usno1989. + + As far as the code goes, I fixed zic to allow years in the range + INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900. + And I cleaned up the zic documentation a little bit. + + +Release data94a - 1994-02-03 08:58:54 -0500 + + It simply incorporates the recently announced leap second into the + "leapseconds" file. + + +Release 93g - 1993-11-22 17:28:27 -0500 + + Paul Eggert has provided a good deal of historic information (based + on Shanks), and there are some code changes to deal with the buglets + that crawled out in dealing with the new information. + + +Release 93f - 1993-10-15 12:27:46 -0400 + + Paul Eggert's changes + + +Release 93e - 1993-09-05 21:21:44 -0400 + + This has updated data for Israel, England, and Kwajalein. There's + also an update to "zdump" to cope with Kwajalein's 24-hour jump. + Thanks to Paul Eggert and Peter Ilieve for the changes. + + +Release 93d - 1993-06-17 23:34:17 -0400 + + new fix and new data on Israel + + +Release 93c - 1993-06-06 19:31:55 -0400 + + [not summarized] + + +Release 93b - 1993-02-02 14:53:58 -0500 + + updated "leapseconds" file + + +Release 93 - 1993-01-08 07:01:06 -0500 + + At kre's suggestion, the package has been split in two - a code piece + (which also includes documentation) that's only of use to folks who + want to recompile things and a data piece useful to anyone who can + run "zic". + + The new version has a few changes to the data files, a few + portability changes, and an off-by-one fix (with thanks to + Tom Karzes at deshaw.com for providing a description and a + solution). + + +Release 92c - 1992-11-21 17:35:36 -0000 + [tz92c.tar.Z is missing!] + + The fallout from the latest round of DST transitions. + + There are changes for Portugal, Saskatchewan, and "Pacific-New"; + there's also a change to "zic.c" that makes it portable to more systems. + + +Release 92 - 1992-04-25 18:17:03 -0000 + [tz92.tar.Z is missing!] + + By popular demand (well, at any rate, following a request by kre at munnari) + + +The 1989 update of the time zone package featured: + + * POSIXization (including interpretation of POSIX-style TZ environment + variables, provided by Guy Harris), + * ANSIfication (including versions of "mktime" and "difftime"), + * SVIDulation (an "altzone" variable) + * MACHination (the "gtime" function) + * corrections to some time zone data (including corrections to the rules + for Great Britain and New Zealand) + * reference data from the United States Naval Observatory for folks who + want to do additional time zones + * and the 1989 data for Saudi Arabia. + + (Since this code will be treated as "part of the implementation" in some + places and as "part of the application" in others, there's no good way to + name functions, such as timegm, that are not part of the proposed ANSI C + standard; such functions have kept their old, underscore-free names in this + update.) + + And the "dysize" function has disappeared; it was present to allow + compilation of the "date" command on old BSD systems, and a version of "date" + is now provided in the package. The "date" command is not created when you + "make all" since it may lack options provided by the version distributed with + your operating system, or may not interact with the system in the same way + the native version does. + + Since POSIX frowns on correct leap second handling, the default behavior of + the "zic" command (in the absence of a "-L" option) has been changed to omit + leap second information from its output files. + + +----- +Notes + +This file contains copies of the part of each release announcement +that talks about the changes in that release. The text has been +adapted and reformatted for the purposes of this file. + +Traditionally a release R consists of a pair of tarball files, +tzcodeR.tar.gz and tzdataR.tar.gz. However, some releases (e.g., +code2010a, data2012c) consist of just one or the other tarball, and a +few (e.g., code2012c-data2012d) have tarballs with mixed version +numbers. Recent releases also come in an experimental format +consisting of a single tarball tzdb-R.tar.lz with extra data. + +Release time stamps are taken from the release's commit (for newer, +Git-based releases), from the newest file in the tarball (for older +releases, where this info is available) or from the email announcing +the release (if all else fails; these are marked with a time zone of +-0000 and an "is missing!" comment). + +Earlier versions of the code and data were not announced on the tz +list and are not summarized here. + +This file is in the public domain. + +Local Variables: +coding: utf-8 +End: diff --git a/contrib/tzdata/README b/contrib/tzdata/README new file mode 100644 index 0000000..8a09aa2 --- /dev/null +++ b/contrib/tzdata/README @@ -0,0 +1,71 @@ +README for the tz distribution + +"What time is it?" -- Richard Deacon as The King +"Any time you want it to be." -- Frank Baxter as The Scientist + (from the Bell System film "About Time") + +The Time Zone Database (often called tz or zoneinfo) contains code and +data that represent the history of local time for many representative +locations around the globe. It is updated periodically to reflect +changes made by political bodies to time zone boundaries, UTC offsets, +and daylight-saving rules. + +Here is a recipe for acquiring, building, installing, and testing the +tz distribution on a GNU/Linux or similar host. + +To acquire the distribution, run the following shell commands: + + mkdir tz + cd tz + wget --retr-symlinks 'ftp://ftp.iana.org/tz/tz*-latest.tar.gz' + gzip -dc tzcode-latest.tar.gz | tar -xf - + gzip -dc tzdata-latest.tar.gz | tar -xf - + +Alternatively, the following shell commands acquire the same +distribution, with extra data useful for regression testing: + + wget --retr-symlinks 'ftp://ftp.iana.org/tz/tzdb-latest.tar.lz' + lzip -dc tzdb-latest.tar.lz | tar -xf - + +Be sure to read the comments in "Makefile" and make any changes needed +to make things right for your system, especially if you are using some +platform other than GNU/Linux. Then run the following commands, +substituting your desired installation directory for "$HOME/tzdir": + + make TOPDIR=$HOME/tzdir install + $HOME/tzdir/etc/zdump -v America/Los_Angeles + +Historical local time information has been included here to: + +* provide a compendium of data about the history of civil time + that is useful even if not 100% accurate; + +* give an idea of the variety of local time rules that have + existed in the past and thus an idea of the variety that may be + expected in the future; + +* provide a test of the generality of the local time rule description + system. + +The information in the time zone data files is by no means authoritative; +fixes and enhancements are welcome. Please see the file CONTRIBUTING +for details. + +Thanks to these Time Zone Caballeros who've made major contributions to the +time conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; +Guy Harris; Mark Horton; John Mackin; and Bradley White. Thanks also to +Michael Bloom, Art Neilson, Stephen Prince, John Sovereign, and Frank Wales +for testing work, and to Gwillim Law for checking local mean time data. +Thanks in particular to Arthur David Olson, the project's founder and first +maintainer, to whom the time zone community owes the greatest debt of all. +None of them are responsible for remaining errors. + +Look in <ftp://ftp.iana.org/tz/releases/> for updated versions of these files. + +Please send comments or information to tz@iana.org. + +----- + +This file is in the public domain, so clarified as of 2009-05-17 by +Arthur David Olson. The other files in this distribution are either +public domain or BSD licensed; see the file LICENSE for details. diff --git a/contrib/tzdata/Theory b/contrib/tzdata/Theory new file mode 100644 index 0000000..677baf6 --- /dev/null +++ b/contrib/tzdata/Theory @@ -0,0 +1,840 @@ +Theory and pragmatics of the tz code and data + + +----- Outline ----- + + Scope of the tz database + Names of time zone rules + Time zone abbreviations + Accuracy of the tz database + Time and date functions + Calendrical issues + Time and time zones on Mars + + +----- Scope of the tz database ----- + +The tz database attempts to record the history and predicted future of +all computer-based clocks that track civil time. To represent this +data, the world is partitioned into regions whose clocks all agree +about time stamps that occur after the somewhat-arbitrary cutoff point +of the POSIX Epoch (1970-01-01 00:00:00 UTC). For each such region, +the database records all known clock transitions, and labels the region +with a notable location. Although 1970 is a somewhat-arbitrary +cutoff, there are significant challenges to moving the cutoff earlier +even by a decade or two, due to the wide variety of local practices +before computer timekeeping became prevalent. + +Clock transitions before 1970 are recorded for each such location, +because most systems support time stamps before 1970 and could +misbehave if data entries were omitted for pre-1970 transitions. +However, the database is not designed for and does not suffice for +applications requiring accurate handling of all past times everywhere, +as it would take far too much effort and guesswork to record all +details of pre-1970 civil timekeeping. + +As described below, reference source code for using the tz database is +also available. The tz code is upwards compatible with POSIX, an +international standard for UNIX-like systems. As of this writing, the +current edition of POSIX is: + + The Open Group Base Specifications Issue 7 + IEEE Std 1003.1, 2013 Edition + <http://pubs.opengroup.org/onlinepubs/9699919799/> + + + +----- Names of time zone rules ----- + +Each of the database's time zone rules has a unique name. +Inexperienced users are not expected to select these names unaided. +Distributors should provide documentation and/or a simple selection +interface that explains the names; for one example, see the 'tzselect' +program in the tz code. The Unicode Common Locale Data Repository +<http://cldr.unicode.org/> contains data that may be useful for other +selection interfaces. + +The time zone rule naming conventions attempt to strike a balance +among the following goals: + + * Uniquely identify every region where clocks have agreed since 1970. + This is essential for the intended use: static clocks keeping local + civil time. + + * Indicate to experts where that region is. + + * Be robust in the presence of political changes. For example, names + of countries are ordinarily not used, to avoid incompatibilities + when countries change their name (e.g. Zaire->Congo) or when + locations change countries (e.g. Hong Kong from UK colony to + China). + + * Be portable to a wide variety of implementations. + + * Use a consistent naming conventions over the entire world. + +Names normally have the form AREA/LOCATION, where AREA is the name +of a continent or ocean, and LOCATION is the name of a specific +location within that region. North and South America share the same +area, 'America'. Typical names are 'Africa/Cairo', 'America/New_York', +and 'Pacific/Honolulu'. + +Here are the general rules used for choosing location names, +in decreasing order of importance: + + Use only valid POSIX file name components (i.e., the parts of + names other than '/'). Do not use the file name + components '.' and '..'. Within a file name component, + use only ASCII letters, '.', '-' and '_'. Do not use + digits, as that might create an ambiguity with POSIX + TZ strings. A file name component must not exceed 14 + characters or start with '-'. E.g., prefer 'Brunei' + to 'Bandar_Seri_Begawan'. Exceptions: see the discussion + of legacy names below. + A name must not be empty, or contain '//', or start or end with '/'. + Do not use names that differ only in case. Although the reference + implementation is case-sensitive, some other implementations + are not, and they would mishandle names differing only in case. + If one name A is an initial prefix of another name AB (ignoring case), + then B must not start with '/', as a regular file cannot have + the same name as a directory in POSIX. For example, + 'America/New_York' precludes 'America/New_York/Bronx'. + Uninhabited regions like the North Pole and Bouvet Island + do not need locations, since local time is not defined there. + There should typically be at least one name for each ISO 3166-1 + officially assigned two-letter code for an inhabited country + or territory. + If all the clocks in a region have agreed since 1970, + don't bother to include more than one location + even if subregions' clocks disagreed before 1970. + Otherwise these tables would become annoyingly large. + If a name is ambiguous, use a less ambiguous alternative; + e.g. many cities are named San José and Georgetown, so + prefer 'Costa_Rica' to 'San_Jose' and 'Guyana' to 'Georgetown'. + Keep locations compact. Use cities or small islands, not countries + or regions, so that any future time zone changes do not split + locations into different time zones. E.g. prefer 'Paris' + to 'France', since France has had multiple time zones. + Use mainstream English spelling, e.g. prefer 'Rome' to 'Roma', and + prefer 'Athens' to the Greek 'Αθήνα' or the Romanized 'Athína'. + The POSIX file name restrictions encourage this rule. + Use the most populous among locations in a zone, + e.g. prefer 'Shanghai' to 'Beijing'. Among locations with + similar populations, pick the best-known location, + e.g. prefer 'Rome' to 'Milan'. + Use the singular form, e.g. prefer 'Canary' to 'Canaries'. + Omit common suffixes like '_Islands' and '_City', unless that + would lead to ambiguity. E.g. prefer 'Cayman' to + 'Cayman_Islands' and 'Guatemala' to 'Guatemala_City', + but prefer 'Mexico_City' to 'Mexico' because the country + of Mexico has several time zones. + Use '_' to represent a space. + Omit '.' from abbreviations in names, e.g. prefer 'St_Helena' + to 'St._Helena'. + Do not change established names if they only marginally + violate the above rules. For example, don't change + the existing name 'Rome' to 'Milan' merely because + Milan's population has grown to be somewhat greater + than Rome's. + If a name is changed, put its old spelling in the 'backward' file. + This means old spellings will continue to work. + +The file 'zone1970.tab' lists geographical locations used to name time +zone rules. It is intended to be an exhaustive list of names for +geographic regions as described above; this is a subset of the names +in the data. Although a 'zone1970.tab' location's longitude +corresponds to its LMT offset with one hour for every 15 degrees east +longitude, this relationship is not exact. + +Older versions of this package used a different naming scheme, +and these older names are still supported. +See the file 'backward' for most of these older names +(e.g., 'US/Eastern' instead of 'America/New_York'). +The other old-fashioned names still supported are +'WET', 'CET', 'MET', and 'EET' (see the file 'europe'). + +Older versions of this package defined legacy names that are +incompatible with the first rule of location names, but which are +still supported. These legacy names are mostly defined in the file +'etcetera'. Also, the file 'backward' defines the legacy names +'GMT0', 'GMT-0', 'GMT+0' and 'Canada/East-Saskatchewan', and the file +'northamerica' defines the legacy names 'EST5EDT', 'CST6CDT', +'MST7MDT', and 'PST8PDT'. + +Excluding 'backward' should not affect the other data. If +'backward' is excluded, excluding 'etcetera' should not affect the +remaining data. + + +----- Time zone abbreviations ----- + +When this package is installed, it generates time zone abbreviations +like 'EST' to be compatible with human tradition and POSIX. +Here are the general rules used for choosing time zone abbreviations, +in decreasing order of importance: + + Use three or more characters that are ASCII alphanumerics or '+' or '-'. + Previous editions of this database also used characters like + ' ' and '?', but these characters have a special meaning to + the shell and cause commands like + set `date` + to have unexpected effects. + Previous editions of this rule required upper-case letters, + but the Congressman who introduced Chamorro Standard Time + preferred "ChST", so lower-case letters are now allowed. + Also, POSIX from 2001 on relaxed the rule to allow '-', '+', + and alphanumeric characters from the portable character set + in the current locale. In practice ASCII alphanumerics and + '+' and '-' are safe in all locales. + + In other words, in the C locale the POSIX extended regular + expression [-+[:alnum:]]{3,} should match the abbreviation. + This guarantees that all abbreviations could have been + specified by a POSIX TZ string. + + Use abbreviations that are in common use among English-speakers, + e.g. 'EST' for Eastern Standard Time in North America. + We assume that applications translate them to other languages + as part of the normal localization process; for example, + a French application might translate 'EST' to 'HNE'. + + For zones whose times are taken from a city's longitude, use the + traditional xMT notation, e.g. 'PMT' for Paris Mean Time. + The only name like this in current use is 'GMT'. + + Use 'LMT' for local mean time of locations before the introduction + of standard time; see "Scope of the tz database". + + If there is no common English abbreviation, use numeric offsets like + -05 and +0830 that are generated by zic's %z notation. + + [The remaining guidelines predate the introduction of %z. + They are problematic as they mean tz data entries invent + notation rather than record it. These guidelines are now + deprecated and the plan is to gradually move to %z for + inhabited locations and to "-00" for uninhabited locations.] + + If there is no common English abbreviation, abbreviate the English + translation of the usual phrase used by native speakers. + If this is not available or is a phrase mentioning the country + (e.g. "Cape Verde Time"), then: + + When a country is identified with a single or principal zone, + append 'T' to the country's ISO code, e.g. 'CVT' for + Cape Verde Time. For summer time append 'ST'; + for double summer time append 'DST'; etc. + Otherwise, take the first three letters of an English place + name identifying each zone and append 'T', 'ST', etc. + as before; e.g. 'VLAST' for VLAdivostok Summer Time. + + Use UT (with time zone abbreviation '-00') for locations while + uninhabited. The leading '-' is a flag that the time + zone is in some sense undefined; this notation is + derived from Internet RFC 3339. + +Application writers should note that these abbreviations are ambiguous +in practice: e.g. 'CST' has a different meaning in China than +it does in the United States. In new applications, it's often better +to use numeric UT offsets like '-0600' instead of time zone +abbreviations like 'CST'; this avoids the ambiguity. + + +----- Accuracy of the tz database ----- + +The tz database is not authoritative, and it surely has errors. +Corrections are welcome and encouraged; see the file CONTRIBUTING. +Users requiring authoritative data should consult national standards +bodies and the references cited in the database's comments. + +Errors in the tz database arise from many sources: + + * The tz database predicts future time stamps, and current predictions + will be incorrect after future governments change the rules. + For example, if today someone schedules a meeting for 13:00 next + October 1, Casablanca time, and tomorrow Morocco changes its + daylight saving rules, software can mess up after the rule change + if it blithely relies on conversions made before the change. + + * The pre-1970 entries in this database cover only a tiny sliver of how + clocks actually behaved; the vast majority of the necessary + information was lost or never recorded. Thousands more zones would + be needed if the tz database's scope were extended to cover even + just the known or guessed history of standard time; for example, + the current single entry for France would need to split into dozens + of entries, perhaps hundreds. And in most of the world even this + approach would be misleading due to widespread disagreement or + indifference about what times should be observed. In her 2015 book + "The Global Transformation of Time, 1870-1950", Vanessa Ogle writes + "Outside of Europe and North America there was no system of time + zones at all, often not even a stable landscape of mean times, + prior to the middle decades of the twentieth century". See: + Timothy Shenk, Booked: A Global History of Time. Dissent 2015-12-17 + https://www.dissentmagazine.org/blog/booked-a-global-history-of-time-vanessa-ogle + + * Most of the pre-1970 data entries come from unreliable sources, often + astrology books that lack citations and whose compilers evidently + invented entries when the true facts were unknown, without + reporting which entries were known and which were invented. + These books often contradict each other or give implausible entries, + and on the rare occasions when they are checked they are + typically found to be incorrect. + + * For the UK the tz database relies on years of first-class work done by + Joseph Myers and others; see <http://www.polyomino.org.uk/british-time/>. + Other countries are not done nearly as well. + + * Sometimes, different people in the same city would maintain clocks + that differed significantly. Railway time was used by railroad + companies (which did not always agree with each other), + church-clock time was used for birth certificates, etc. + Often this was merely common practice, but sometimes it was set by law. + For example, from 1891 to 1911 the UT offset in France was legally + 0:09:21 outside train stations and 0:04:21 inside. + + * Although a named location in the tz database stands for the + containing region, its pre-1970 data entries are often accurate for + only a small subset of that region. For example, Europe/London + stands for the United Kingdom, but its pre-1847 times are valid + only for locations that have London's exact meridian, and its 1847 + transition to GMT is known to be valid only for the L&NW and the + Caledonian railways. + + * The tz database does not record the earliest time for which a zone's + data entries are thereafter valid for every location in the region. + For example, Europe/London is valid for all locations in its + region after GMT was made the standard time, but the date of + standardization (1880-08-02) is not in the tz database, other than + in commentary. For many zones the earliest time of validity is + unknown. + + * The tz database does not record a region's boundaries, and in many + cases the boundaries are not known. For example, the zone + America/Kentucky/Louisville represents a region around the city of + Louisville, the boundaries of which are unclear. + + * Changes that are modeled as instantaneous transitions in the tz + database were often spread out over hours, days, or even decades. + + * Even if the time is specified by law, locations sometimes + deliberately flout the law. + + * Early timekeeping practices, even assuming perfect clocks, were + often not specified to the accuracy that the tz database requires. + + * Sometimes historical timekeeping was specified more precisely + than what the tz database can handle. For example, from 1909 to + 1937 Netherlands clocks were legally UT +00:19:32.13, but the tz + database cannot represent the fractional second. + + * Even when all the timestamp transitions recorded by the tz database + are correct, the tz rules that generate them may not faithfully + reflect the historical rules. For example, from 1922 until World + War II the UK moved clocks forward the day following the third + Saturday in April unless that was Easter, in which case it moved + clocks forward the previous Sunday. Because the tz database has no + way to specify Easter, these exceptional years are entered as + separate tz Rule lines, even though the legal rules did not change. + + * The tz database models pre-standard time using the proleptic Gregorian + calendar and local mean time (LMT), but many people used other + calendars and other timescales. For example, the Roman Empire used + the Julian calendar, and had 12 varying-length daytime hours with a + non-hour-based system at night. + + * Early clocks were less reliable, and data entries do not represent + this unreliability. + + * As for leap seconds, civil time was not based on atomic time before + 1972, and we don't know the history of earth's rotation accurately + enough to map SI seconds to historical solar time to more than + about one-hour accuracy. See: Morrison LV, Stephenson FR. + Historical values of the Earth's clock error Delta T and the + calculation of eclipses. J Hist Astron. 2004;35:327-36 + <http://adsabs.harvard.edu/full/2004JHA....35..327M>; + Historical values of the Earth's clock error. J Hist Astron. 2005;36:339 + <http://adsabs.harvard.edu/full/2005JHA....36..339M>. + + * The relationship between POSIX time (that is, UTC but ignoring leap + seconds) and UTC is not agreed upon after 1972. Although the POSIX + clock officially stops during an inserted leap second, at least one + proposed standard has it jumping back a second instead; and in + practice POSIX clocks more typically either progress glacially during + a leap second, or are slightly slowed while near a leap second. + + * The tz database does not represent how uncertain its information is. + Ideally it would contain information about when data entries are + incomplete or dicey. Partial temporal knowledge is a field of + active research, though, and it's not clear how to apply it here. + +In short, many, perhaps most, of the tz database's pre-1970 and future +time stamps are either wrong or misleading. Any attempt to pass the +tz database off as the definition of time should be unacceptable to +anybody who cares about the facts. In particular, the tz database's +LMT offsets should not be considered meaningful, and should not prompt +creation of zones merely because two locations differ in LMT or +transitioned to standard time at different dates. + + +----- Time and date functions ----- + +The tz code contains time and date functions that are upwards +compatible with those of POSIX. + +POSIX has the following properties and limitations. + +* In POSIX, time display in a process is controlled by the + environment variable TZ. Unfortunately, the POSIX TZ string takes + a form that is hard to describe and is error-prone in practice. + Also, POSIX TZ strings can't deal with other (for example, Israeli) + daylight saving time rules, or situations where more than two + time zone abbreviations are used in an area. + + The POSIX TZ string takes the following form: + + stdoffset[dst[offset][,date[/time],date[/time]]] + + where: + + std and dst + are 3 or more characters specifying the standard + and daylight saving time (DST) zone names. + Starting with POSIX.1-2001, std and dst may also be + in a quoted form like "<UTC+10>"; this allows + "+" and "-" in the names. + offset + is of the form '[+-]hh:[mm[:ss]]' and specifies the + offset west of UT. 'hh' may be a single digit; 0<=hh<=24. + The default DST offset is one hour ahead of standard time. + date[/time],date[/time] + specifies the beginning and end of DST. If this is absent, + the system supplies its own rules for DST, and these can + differ from year to year; typically US DST rules are used. + time + takes the form 'hh:[mm[:ss]]' and defaults to 02:00. + This is the same format as the offset, except that a + leading '+' or '-' is not allowed. + date + takes one of the following forms: + Jn (1<=n<=365) + origin-1 day number not counting February 29 + n (0<=n<=365) + origin-0 day number counting February 29 if present + Mm.n.d (0[Sunday]<=d<=6[Saturday], 1<=n<=5, 1<=m<=12) + for the dth day of week n of month m of the year, + where week 1 is the first week in which day d appears, + and '5' stands for the last week in which day d appears + (which may be either the 4th or 5th week). + Typically, this is the only useful form; + the n and Jn forms are rarely used. + + Here is an example POSIX TZ string, for US Pacific time using rules + appropriate from 1987 through 2006: + + TZ='PST8PDT,M4.1.0/02:00,M10.5.0/02:00' + + This POSIX TZ string is hard to remember, and mishandles time stamps + before 1987 and after 2006. With this package you can use this + instead: + + TZ='America/Los_Angeles' + +* POSIX does not define the exact meaning of TZ values like "EST5EDT". + Typically the current US DST rules are used to interpret such values, + but this means that the US DST rules are compiled into each program + that does time conversion. This means that when US time conversion + rules change (as in the United States in 1987), all programs that + do time conversion must be recompiled to ensure proper results. + +* The TZ environment variable is process-global, which makes it hard + to write efficient, thread-safe applications that need access + to multiple time zones. + +* In POSIX, there's no tamper-proof way for a process to learn the + system's best idea of local wall clock. (This is important for + applications that an administrator wants used only at certain times - + without regard to whether the user has fiddled the "TZ" environment + variable. While an administrator can "do everything in UTC" to get + around the problem, doing so is inconvenient and precludes handling + daylight saving time shifts - as might be required to limit phone + calls to off-peak hours.) + +* POSIX provides no convenient and efficient way to determine the UT + offset and time zone abbreviation of arbitrary time stamps, + particularly for time zone settings that do not fit into the + POSIX model. + +* POSIX requires that systems ignore leap seconds. + +* The tz code attempts to support all the time_t implementations + allowed by POSIX. The time_t type represents a nonnegative count of + seconds since 1970-01-01 00:00:00 UTC, ignoring leap seconds. + In practice, time_t is usually a signed 64- or 32-bit integer; 32-bit + signed time_t values stop working after 2038-01-19 03:14:07 UTC, so + new implementations these days typically use a signed 64-bit integer. + Unsigned 32-bit integers are used on one or two platforms, + and 36-bit and 40-bit integers are also used occasionally. + Although earlier POSIX versions allowed time_t to be a + floating-point type, this was not supported by any practical + systems, and POSIX.1-2013 and the tz code both require time_t + to be an integer type. + +These are the extensions that have been made to the POSIX functions: + +* The "TZ" environment variable is used in generating the name of a file + from which time zone information is read (or is interpreted a la + POSIX); "TZ" is no longer constrained to be a three-letter time zone + name followed by a number of hours and an optional three-letter + daylight time zone name. The daylight saving time rules to be used + for a particular time zone are encoded in the time zone file; + the format of the file allows U.S., Australian, and other rules to be + encoded, and allows for situations where more than two time zone + abbreviations are used. + + It was recognized that allowing the "TZ" environment variable to + take on values such as "America/New_York" might cause "old" programs + (that expect "TZ" to have a certain form) to operate incorrectly; + consideration was given to using some other environment variable + (for example, "TIMEZONE") to hold the string used to generate the + time zone information file name. In the end, however, it was decided + to continue using "TZ": it is widely used for time zone purposes; + separately maintaining both "TZ" and "TIMEZONE" seemed a nuisance; + and systems where "new" forms of "TZ" might cause problems can simply + use TZ values such as "EST5EDT" which can be used both by + "new" programs (a la POSIX) and "old" programs (as zone names and + offsets). + +* The code supports platforms with a UT offset member in struct tm, + e.g., tm_gmtoff. + +* The code supports platforms with a time zone abbreviation member in + struct tm, e.g., tm_zone. + +* Since the "TZ" environment variable can now be used to control time + conversion, the "daylight" and "timezone" variables are no longer + needed. (These variables are defined and set by "tzset"; however, their + values will not be used by "localtime.") + +* Functions tzalloc, tzfree, localtime_rz, and mktime_z for + more-efficient thread-safe applications that need to use + multiple time zones. The tzalloc and tzfree functions + allocate and free objects of type timezone_t, and localtime_rz + and mktime_z are like localtime_r and mktime with an extra + timezone_t argument. The functions were inspired by NetBSD. + +* A function "tzsetwall" has been added to arrange for the system's + best approximation to local wall clock time to be delivered by + subsequent calls to "localtime." Source code for portable + applications that "must" run on local wall clock time should call + "tzsetwall();" if such code is moved to "old" systems that don't + provide tzsetwall, you won't be able to generate an executable program. + (These time zone functions also arrange for local wall clock time to be + used if tzset is called - directly or indirectly - and there's no "TZ" + environment variable; portable applications should not, however, rely + on this behavior since it's not the way SVR2 systems behave.) + +* Negative time_t values are supported, on systems where time_t is signed. + +* These functions can account for leap seconds, thanks to Bradley White. + +Points of interest to folks with other systems: + +* Code compatible with this package is already part of many platforms, + including GNU/Linux, Android, the BSDs, Chromium OS, Cygwin, AIX, iOS, + BlackBery 10, macOS, Microsoft Windows, OpenVMS, and Solaris. + On such hosts, the primary use of this package + is to update obsolete time zone rule tables. + To do this, you may need to compile the time zone compiler + 'zic' supplied with this package instead of using the system 'zic', + since the format of zic's input is occasionally extended, + and a platform may still be shipping an older zic. + +* The UNIX Version 7 "timezone" function is not present in this package; + it's impossible to reliably map timezone's arguments (a "minutes west + of GMT" value and a "daylight saving time in effect" flag) to a + time zone abbreviation, and we refuse to guess. + Programs that in the past used the timezone function may now examine + tzname[localtime(&clock)->tm_isdst] to learn the correct time + zone abbreviation to use. Alternatively, use + localtime(&clock)->tm_zone if this has been enabled. + +* The 4.2BSD gettimeofday function is not used in this package. + This formerly let users obtain the current UTC offset and DST flag, + but this functionality was removed in later versions of BSD. + +* In SVR2, time conversion fails for near-minimum or near-maximum + time_t values when doing conversions for places that don't use UT. + This package takes care to do these conversions correctly. + A comment in the source code tells how to get compatibly wrong + results. + +The functions that are conditionally compiled if STD_INSPIRED is defined +should, at this point, be looked on primarily as food for thought. They are +not in any sense "standard compatible" - some are not, in fact, specified in +*any* standard. They do, however, represent responses of various authors to +standardization proposals. + +Other time conversion proposals, in particular the one developed by folks at +Hewlett Packard, offer a wider selection of functions that provide capabilities +beyond those provided here. The absence of such functions from this package +is not meant to discourage the development, standardization, or use of such +functions. Rather, their absence reflects the decision to make this package +contain valid extensions to POSIX, to ensure its broad acceptability. If +more powerful time conversion functions can be standardized, so much the +better. + + +----- Interface stability ----- + +The tz code and data supply the following interfaces: + + * A set of zone names as per "Names of time zone rules" above. + + * Library functions described in "Time and date functions" above. + + * The programs tzselect, zdump, and zic, documented in their man pages. + + * The format of zic input files, documented in the zic man page. + + * The format of zic output files, documented in the tzfile man page. + + * The format of zone table files, documented in zone1970.tab. + + * The format of the country code file, documented in iso3166.tab. + +When these interfaces are changed, an effort is made to preserve +backward compatibility. For example, tz data files typically do not +rely on recently-added zic features, so that users can run older zic +versions to process newer data files. + +Interfaces not listed above are less stable. For example, users +should not rely on particular UT offsets or abbreviations for time +stamps, as data entries are often based on guesswork and these guesses +may be corrected or improved. + + +----- Calendrical issues ----- + +Calendrical issues are a bit out of scope for a time zone database, +but they indicate the sort of problems that we would run into if we +extended the time zone database further into the past. An excellent +resource in this area is Nachum Dershowitz and Edward M. Reingold, +Calendrical Calculations: Third Edition, Cambridge University Press (2008) +<http://emr.cs.iit.edu/home/reingold/calendar-book/third-edition/>. +Other information and sources are given below. They sometimes disagree. + + +France + +Gregorian calendar adopted 1582-12-20. +French Revolutionary calendar used 1793-11-24 through 1805-12-31, +and (in Paris only) 1871-05-06 through 1871-05-23. + + +Russia + +From Chris Carrier (1996-12-02): +On 1929-10-01 the Soviet Union instituted an "Eternal Calendar" +with 30-day months plus 5 holidays, with a 5-day week. +On 1931-12-01 it changed to a 6-day week; in 1934 it reverted to the +Gregorian calendar while retaining the 6-day week; on 1940-06-27 it +reverted to the 7-day week. With the 6-day week the usual days +off were the 6th, 12th, 18th, 24th and 30th of the month. +(Source: Evitiar Zerubavel, _The Seven Day Circle_) + + +Mark Brader reported a similar story in "The Book of Calendars", edited +by Frank Parise (1982, Facts on File, ISBN 0-8719-6467-8), page 377. But: + +From: Petteri Sulonen (via Usenet) +Date: 14 Jan 1999 00:00:00 GMT +... + +If your source is correct, how come documents between 1929 and 1940 were +still dated using the conventional, Gregorian calendar? + +I can post a scan of a document dated December 1, 1934, signed by +Yenukidze, the secretary, on behalf of Kalinin, the President of the +Executive Committee of the Supreme Soviet, if you like. + + + +Sweden (and Finland) + +From: Mark Brader +Subject: Re: Gregorian reform - a part of locale? +<news:1996Jul6.012937.29190@sq.com> +Date: 1996-07-06 + +In 1700, Denmark made the transition from Julian to Gregorian. Sweden +decided to *start* a transition in 1700 as well, but rather than have one of +those unsightly calendar gaps :-), they simply decreed that the next leap +year after 1696 would be in 1744 - putting the whole country on a calendar +different from both Julian and Gregorian for a period of 40 years. + +However, in 1704 something went wrong and the plan was not carried through; +they did, after all, have a leap year that year. And one in 1708. In 1712 +they gave it up and went back to Julian, putting 30 days in February that +year!... + +Then in 1753, Sweden made the transition to Gregorian in the usual manner, +getting there only 13 years behind the original schedule. + +(A previous posting of this story was challenged, and Swedish readers +produced the following references to support it: "Tideräkning och historia" +by Natanael Beckman (1924) and "Tid, en bok om tideräkning och +kalenderväsen" by Lars-Olof Lodén (1968). + + +Grotefend's data + +From: "Michael Palmer" [with one obvious typo fixed] +Subject: Re: Gregorian Calendar (was Re: Another FHC related question +Newsgroups: soc.genealogy.german +Date: Tue, 9 Feb 1999 02:32:48 -800 +... + +The following is a(n incomplete) listing, arranged chronologically, of +European states, with the date they converted from the Julian to the +Gregorian calendar: + +04/15 Oct 1582 - Italy (with exceptions), Spain, Portugal, Poland (Roman + Catholics and Danzig only) +09/20 Dec 1582 - France, Lorraine + +21 Dec 1582/ + 01 Jan 1583 - Holland, Brabant, Flanders, Hennegau +10/21 Feb 1583 - bishopric of Liege (Lüttich) +13/24 Feb 1583 - bishopric of Augsburg +04/15 Oct 1583 - electorate of Trier +05/16 Oct 1583 - Bavaria, bishoprics of Freising, Eichstedt, Regensburg, + Salzburg, Brixen +13/24 Oct 1583 - Austrian Oberelsaß and Breisgau +20/31 Oct 1583 - bishopric of Basel +02/13 Nov 1583 - duchy of Jülich-Berg +02/13 Nov 1583 - electorate and city of Köln +04/15 Nov 1583 - bishopric of Würzburg +11/22 Nov 1583 - electorate of Mainz +16/27 Nov 1583 - bishopric of Strassburg and the margraviate of Baden +17/28 Nov 1583 - bishopric of Münster and duchy of Cleve +14/25 Dec 1583 - Steiermark + +06/17 Jan 1584 - Austria and Bohemia +11/22 Jan 1584 - Lucerne, Uri, Schwyz, Zug, Freiburg, Solothurn +12/23 Jan 1584 - Silesia and the Lausitz +22 Jan/ + 02 Feb 1584 - Hungary (legally on 21 Oct 1587) + Jun 1584 - Unterwalden +01/12 Jul 1584 - duchy of Westfalen + +16/27 Jun 1585 - bishopric of Paderborn + +14/25 Dec 1590 - Transylvania + +22 Aug/ + 02 Sep 1612 - duchy of Prussia + +13/24 Dec 1614 - Pfalz-Neuburg + + 1617 - duchy of Kurland (reverted to the Julian calendar in + 1796) + + 1624 - bishopric of Osnabrück + + 1630 - bishopric of Minden + +15/26 Mar 1631 - bishopric of Hildesheim + + 1655 - Kanton Wallis + +05/16 Feb 1682 - city of Strassburg + +18 Feb/ + 01 Mar 1700 - Protestant Germany (including Swedish possessions in + Germany), Denmark, Norway +30 Jun/ + 12 Jul 1700 - Gelderland, Zutphen +10 Nov/ + 12 Dec 1700 - Utrecht, Overijssel + +31 Dec 1700/ + 12 Jan 1701 - Friesland, Groningen, Zürich, Bern, Basel, Geneva, + Turgau, and Schaffhausen + + 1724 - Glarus, Appenzell, and the city of St. Gallen + +01 Jan 1750 - Pisa and Florence + +02/14 Sep 1752 - Great Britain + +17 Feb/ + 01 Mar 1753 - Sweden + +1760-1812 - Graubünden + +The Russian empire (including Finland and the Baltic states) did not +convert to the Gregorian calendar until the Soviet revolution of 1917. + +Source: H. Grotefend, _Taschenbuch der Zeitrechnung des deutschen +Mittelalters und der Neuzeit_, herausgegeben von Dr. O. Grotefend +(Hannover: Hahnsche Buchhandlung, 1941), pp. 26-28. + + +----- Time and time zones on Mars ----- + +Some people's work schedules use Mars time. Jet Propulsion Laboratory +(JPL) coordinators have kept Mars time on and off at least since 1997 +for the Mars Pathfinder mission. Some of their family members have +also adapted to Mars time. Dozens of special Mars watches were built +for JPL workers who kept Mars time during the Mars Exploration +Rovers mission (2004). These timepieces look like normal Seikos and +Citizens but use Mars seconds rather than terrestrial seconds. + +A Mars solar day is called a "sol" and has a mean period equal to +about 24 hours 39 minutes 35.244 seconds in terrestrial time. It is +divided into a conventional 24-hour clock, so each Mars second equals +about 1.02749125 terrestrial seconds. + +The prime meridian of Mars goes through the center of the crater +Airy-0, named in honor of the British astronomer who built the +Greenwich telescope that defines Earth's prime meridian. Mean solar +time on the Mars prime meridian is called Mars Coordinated Time (MTC). + +Each landed mission on Mars has adopted a different reference for +solar time keeping, so there is no real standard for Mars time zones. +For example, the Mars Exploration Rover project (2004) defined two +time zones "Local Solar Time A" and "Local Solar Time B" for its two +missions, each zone designed so that its time equals local true solar +time at approximately the middle of the nominal mission. Such a "time +zone" is not particularly suited for any application other than the +mission itself. + +Many calendars have been proposed for Mars, but none have achieved +wide acceptance. Astronomers often use Mars Sol Date (MSD) which is a +sequential count of Mars solar days elapsed since about 1873-12-29 +12:00 GMT. + +The tz database does not currently support Mars time, but it is +documented here in the hopes that support will be added eventually. + +Sources: + +Michael Allison and Robert Schmunk, +"Technical Notes on Mars Solar Time as Adopted by the Mars24 Sunclock" +<http://www.giss.nasa.gov/tools/mars24/help/notes.html> (2012-08-08). + +Jia-Rui Chong, "Workdays Fit for a Martian", Los Angeles Times +<http://articles.latimes.com/2004/jan/14/science/sci-marstime14> +(2004-01-14), pp A1, A20-A21. + +Tom Chmielewski, "Jet Lag Is Worse on Mars", The Atlantic (2015-02-26) +<http://www.theatlantic.com/technology/archive/2015/02/jet-lag-is-worse-on-mars/386033/> + +----- + +This file is in the public domain, so clarified as of 2009-05-17 by +Arthur David Olson. + +----- +Local Variables: +coding: utf-8 +End: diff --git a/contrib/tzdata/africa b/contrib/tzdata/africa index 4ace7e9..d35aaa5 100644 --- a/contrib/tzdata/africa +++ b/contrib/tzdata/africa @@ -1,32 +1,32 @@ # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. -# This data is by no means authoritative; if you think you know better, +# This file is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz@iana.org for general use in the future). +# tz@iana.org for general use in the future). For more, please see +# the file CONTRIBUTING in the tz distribution. -# From Paul Eggert (2013-02-21): +# From Paul Eggert (2014-10-31): # -# A good source for time zone historical data outside the U.S. is +# Unless otherwise specified, the source for data through 1990 is: # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003). +# Unfortunately this book contains many errors and cites no sources. # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries -# of the IATA's data after 1990. -# -# Except where otherwise noted, Shanks & Pottenger is the source for -# entries through 1990, and IATA SSIM is the source for entries afterwards. +# of the IATA's data after 1990. Except where otherwise noted, +# IATA SSIM is the source for entries after 1990. # # Another source occasionally used is Edward W. Whitman, World Time Differences, # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which # I found in the UCLA library. # # For data circa 1899, a common source is: -# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 -# <http://www.jstor.org/stable/1774359>. +# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. +# http://www.jstor.org/stable/1774359 # # A reliable and entertaining source about time zones is # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). @@ -64,7 +64,6 @@ # 3:00 CAST Central Africa Summer Time (no longer used) # 3:00 SAST South Africa Summer Time (no longer used) # 3:00 EAT East Africa Time -# 4:00 EAST East Africa Summer Time (no longer used) # Algeria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -93,9 +92,9 @@ Rule Algeria 1980 only - Oct 31 2:00 0 - # Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's # more precise 0:09:21. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Algiers 0:12:12 - LMT 1891 Mar 15 0:01 - 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time - 0:00 Algeria WE%sT 1940 Feb 25 2:00 +Zone Africa/Algiers 0:12:12 - LMT 1891 Mar 15 0:01 + 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time + 0:00 Algeria WE%sT 1940 Feb 25 2:00 1:00 Algeria CE%sT 1946 Oct 7 0:00 - WET 1956 Jan 29 1:00 - CET 1963 Apr 14 @@ -105,82 +104,55 @@ Zone Africa/Algiers 0:12:12 - LMT 1891 Mar 15 0:01 1:00 - CET # Angola -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Luanda 0:52:56 - LMT 1892 - 0:52:04 - AOT 1911 May 26 # Angola Time - 1:00 - WAT - # Benin -# Whitman says they switched to 1:00 in 1946, not 1934; -# go with Shanks & Pottenger. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Porto-Novo 0:10:28 - LMT 1912 - 0:00 - GMT 1934 Feb 26 - 1:00 - WAT +# See Africa/Lagos. # Botswana -# From Paul Eggert (2013-02-21): -# Milne says they were regulated by the Cape Town Signal in 1899; -# assume they switched to 2:00 when Cape Town did. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Gaborone 1:43:40 - LMT 1885 - 1:30 - SAST 1903 Mar - 2:00 - CAT 1943 Sep 19 2:00 - 2:00 1:00 CAST 1944 Mar 19 2:00 - 2:00 - CAT +# See Africa/Maputo. # Burkina Faso # See Africa/Abidjan. # Burundi -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Bujumbura 1:57:28 - LMT 1890 - 2:00 - CAT +# See Africa/Maputo. # Cameroon -# Whitman says they switched to 1:00 in 1920; go with Shanks & Pottenger. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Douala 0:38:48 - LMT 1912 - 1:00 - WAT +# See Africa/Lagos. # Cape Verde +# +# Shanks gives 1907 for the transition to CVT. +# Perhaps the 1911-05-26 Portuguese decree +# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf +# merely made it official? +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Atlantic/Cape_Verde -1:34:04 - LMT 1907 # Praia +Zone Atlantic/Cape_Verde -1:34:04 - LMT 1907 # Praia -2:00 - CVT 1942 Sep -2:00 1:00 CVST 1945 Oct 15 - -2:00 - CVT 1975 Nov 25 2:00 + -2:00 - CVT 1975 Nov 25 2:00 -1:00 - CVT # Central African Republic -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Bangui 1:14:20 - LMT 1912 - 1:00 - WAT +# See Africa/Lagos. # Chad # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Ndjamena 1:00:12 - LMT 1912 # N'Djamena +Zone Africa/Ndjamena 1:00:12 - LMT 1912 # N'Djamena 1:00 - WAT 1979 Oct 14 1:00 1:00 WAST 1980 Mar 8 1:00 - WAT # Comoros -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro - 3:00 - EAT +# See Africa/Nairobi. -# Democratic Republic of Congo -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9 - 1:00 - WAT -Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9 - 2:00 - CAT +# Democratic Republic of the Congo +# See Africa/Lagos for the western part and Africa/Maputo for the eastern. # Republic of the Congo -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Brazzaville 1:01:08 - LMT 1912 - 1:00 - WAT +# See Africa/Lagos. -# Côte D'Ivoire / Ivory Coast +# Côte d'Ivoire / Ivory Coast # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Abidjan -0:16:08 - LMT 1912 0:00 - GMT @@ -196,9 +168,7 @@ Link Africa/Abidjan Africa/Sao_Tome # São Tomé and Príncipe Link Africa/Abidjan Atlantic/St_Helena # St Helena # Djibouti -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul - 3:00 - EAT +# See Africa/Nairobi. ############################################################################### @@ -327,7 +297,7 @@ Rule Egypt 2007 only - Sep Thu>=1 24:00 0 - # Egypt is to change back to Daylight system on May 15 # http://english.ahram.org.eg/NewsContent/1/64/100735/Egypt/Politics-/Egypts-government-to-reapply-daylight-saving-time-.aspx -# From Gunther Vermier (2015-05-13): +# From Gunther Vermier (2014-05-13): # our Egypt office confirms that the change will be at 15 May "midnight" (24:00) # From Imed Chihi (2014-06-04): @@ -349,35 +319,36 @@ Rule Egypt 2007 only - Sep Thu>=1 24:00 0 - # above) says DST had no affect on electricity consumption. There is # no information about when DST will end this fall. See: # http://abcnews.go.com/International/wireStory/el-sissi-pushes-egyptians-line-23614833 + +# From Steffen Thorsen (2015-04-08): +# Egypt will start DST on midnight after Thursday, April 30, 2015. +# This is based on a law (no 35) from May 15, 2014 saying it starts the last +# Thursday of April.... Clocks will still be turned back for Ramadan, but +# dates not yet announced.... +# http://almogaz.com/news/weird-news/2015/04/05/1947105 ... +# http://www.timeanddate.com/news/time/egypt-starts-dst-2015.html + +# From Ahmed Nazmy (2015-04-20): +# Egypt's ministers cabinet just announced ... that it will cancel DST at +# least for 2015. # -# For now, guess that later spring and fall transitions will use -# 2010's rules, and guess that Egypt will switch to standard time at -# 24:00 the last Thursday before Ramadan, and back to DST at 00:00 the -# first Friday after Ramadan. To implement this, -# transition dates for 2015 through 2037 were determined by running -# the following program under GNU Emacs 24.3, with the results integrated -# by hand into the table below. Ramadan again intrudes on the guessed -# DST starting in 2038, but that's beyond our somewhat-arbitrary cutoff. -# (let ((islamic-year 1436)) -# (while (< islamic-year 1460) -# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year))) -# (b (calendar-islamic-to-absolute (list 10 1 islamic-year))) -# (friday 5)) -# (while (/= friday (mod a 7)) -# (setq a (1- a))) -# (while (/= friday (mod b 7)) -# (setq b (1+ b))) -# (setq a (1- a)) -# (setq b (1- b)) -# (setq a (calendar-gregorian-from-absolute a)) -# (setq b (calendar-gregorian-from-absolute b)) -# (insert -# (format -# (concat "Rule\tEgypt\t%d\tonly\t-\t%s\t%2d\t24:00\t0\t-\n" -# "Rule\tEgypt\t%d\tonly\t-\t%s\t%2d\t24:00\t1:00\tS\n") -# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a)) -# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b))))) -# (setq islamic-year (+ 1 islamic-year)))) +# From Tim Parenti (2015-04-20): +# http://english.ahram.org.eg/WriterArticles/NewsContentP/1/128195/Egypt/No-daylight-saving-this-summer-Egypts-prime-minist.aspx +# "Egypt's cabinet agreed on Monday not to switch clocks for daylight saving +# time this summer, and carry out studies on the possibility of canceling the +# practice altogether in future years." +# +# From Paul Eggert (2015-04-24): +# Yesterday the office of Egyptian President El-Sisi announced his +# decision to abandon DST permanently. See Ahram Online 2015-04-24. +# http://english.ahram.org.eg/NewsContent/1/64/128509/Egypt/Politics-/Sisi-cancels-daylight-saving-time-in-Egypt.aspx + +# From Steffen Thorsen (2016-04-29): +# Egypt will have DST from July 7 until the end of October.... +# http://english.ahram.org.eg/NewsContentP/1/204655/Egypt/Daylight-savings-time-returning-to-Egypt-on--July.aspx +# From Mina Samuel (2016-07-04): +# Egyptian government took the decision to cancel the DST, + Rule Egypt 2008 only - Aug lastThu 24:00 0 - Rule Egypt 2009 only - Aug 20 24:00 0 - Rule Egypt 2010 only - Aug 10 24:00 0 - @@ -386,59 +357,21 @@ Rule Egypt 2010 only - Sep lastThu 24:00 0 - Rule Egypt 2014 only - May 15 24:00 1:00 S Rule Egypt 2014 only - Jun 26 24:00 0 - Rule Egypt 2014 only - Jul 31 24:00 1:00 S -Rule Egypt 2014 max - Sep lastThu 24:00 0 - -Rule Egypt 2015 2019 - Apr lastFri 0:00s 1:00 S -Rule Egypt 2015 only - Jun 11 24:00 0 - -Rule Egypt 2015 only - Jul 23 24:00 1:00 S -Rule Egypt 2016 only - Jun 2 24:00 0 - -Rule Egypt 2016 only - Jul 7 24:00 1:00 S -Rule Egypt 2017 only - May 25 24:00 0 - -Rule Egypt 2017 only - Jun 29 24:00 1:00 S -Rule Egypt 2018 only - May 10 24:00 0 - -Rule Egypt 2018 only - Jun 14 24:00 1:00 S -Rule Egypt 2019 only - May 2 24:00 0 - -Rule Egypt 2019 only - Jun 6 24:00 1:00 S -Rule Egypt 2020 only - May 28 24:00 1:00 S -Rule Egypt 2021 only - May 13 24:00 1:00 S -Rule Egypt 2022 only - May 5 24:00 1:00 S -Rule Egypt 2023 max - Apr lastFri 0:00s 1:00 S +Rule Egypt 2014 only - Sep lastThu 24:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Cairo 2:05:09 - LMT 1900 Oct 2:00 Egypt EE%sT # Equatorial Guinea -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Malabo 0:35:08 - LMT 1912 - 0:00 - GMT 1963 Dec 15 - 1:00 - WAT +# See Africa/Lagos. # Eritrea -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Asmara 2:35:32 - LMT 1870 - 2:35:32 - AMT 1890 # Asmara Mean Time - 2:35:20 - ADMT 1936 May 5 # Adis Dera MT - 3:00 - EAT - # Ethiopia -# From Paul Eggert (2014-07-31): -# Like the Swahili of Kenya and Tanzania, many Ethiopians keep a -# 12-hour clock starting at our 06:00, so their "8 o'clock" is our -# 02:00 or 14:00. Keep this in mind when you ask the time in Amharic. -# -# Shanks & Pottenger write that Ethiopia had six narrowly-spaced time -# zones between 1870 and 1890, that they merged to 38E50 (2:35:20) in -# 1890, and that they switched to 3:00 on 1936-05-05. Perhaps 38E50 -# was for Adis Dera. Quite likely the Shanks data are wrong anyway. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Addis_Ababa 2:34:48 - LMT 1870 - 2:35:20 - ADMT 1936 May 5 # Adis Dera MT - 3:00 - EAT +# See Africa/Nairobi. # Gabon -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Libreville 0:37:48 - LMT 1912 - 1:00 - WAT +# See Africa/Lagos. # Gambia # See Africa/Abidjan. @@ -461,8 +394,14 @@ Zone Africa/Accra -0:00:52 - LMT 1918 # See Africa/Abidjan. # Guinea-Bissau +# +# Shanks gives 1911-05-26 for the transition to WAT, +# evidently confusing the date of the Portuguese decree +# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf +# with the date that it took effect, namely 1912-01-01. +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Bissau -1:02:20 - LMT 1911 May 26 +Zone Africa/Bissau -1:02:20 - LMT 1912 Jan 1 -1:00 - WAT 1975 0:00 - GMT @@ -473,13 +412,18 @@ Zone Africa/Nairobi 2:27:16 - LMT 1928 Jul 2:30 - BEAT 1940 2:45 - BEAUT 1960 3:00 - EAT +Link Africa/Nairobi Africa/Addis_Ababa # Ethiopia +Link Africa/Nairobi Africa/Asmara # Eritrea +Link Africa/Nairobi Africa/Dar_es_Salaam # Tanzania +Link Africa/Nairobi Africa/Djibouti +Link Africa/Nairobi Africa/Kampala # Uganda +Link Africa/Nairobi Africa/Mogadishu # Somalia +Link Africa/Nairobi Indian/Antananarivo # Madagascar +Link Africa/Nairobi Indian/Comoro +Link Africa/Nairobi Indian/Mayotte # Lesotho -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Maseru 1:50:00 - LMT 1903 Mar - 2:00 - SAST 1943 Sep 19 2:00 - 2:00 1:00 SAST 1944 Mar 19 2:00 - 2:00 - SAST +# See Africa/Johannesburg. # Liberia # From Paul Eggert (2006-03-22): @@ -520,7 +464,7 @@ Zone Africa/Monrovia -0:43:08 - LMT 1882 # http://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/ # # From Paul Eggert (2013-10-25): -# For now, assume they're reverting to the pre-2012 rules of permanent UTC+2. +# For now, assume they're reverting to the pre-2012 rules of permanent UT +02. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Libya 1951 only - Oct 14 2:00 1:00 S @@ -546,24 +490,18 @@ Zone Africa/Tripoli 0:52:44 - LMT 1920 2:00 - EET 1982 1:00 Libya CE%sT 1990 May 4 # The 1996 and 1997 entries are from Shanks & Pottenger; -# the IATA SSIM data contain some obvious errors. +# the IATA SSIM data entries contain some obvious errors. 2:00 - EET 1996 Sep 30 1:00 Libya CE%sT 1997 Oct 4 - 2:00 - EET 2012 Nov 10 2:00 - 1:00 Libya CE%sT 2013 Oct 25 2:00 + 2:00 - EET 2012 Nov 10 2:00 + 1:00 Libya CE%sT 2013 Oct 25 2:00 2:00 - EET # Madagascar -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul - 3:00 - EAT 1954 Feb 27 23:00s - 3:00 1:00 EAST 1954 May 29 23:00s - 3:00 - EAT +# See Africa/Nairobi. # Malawi -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Blantyre 2:20:00 - LMT 1903 Mar - 2:00 - CAT +# See Africa/Maputo. # Mali # Mauritania @@ -606,7 +544,7 @@ Zone Africa/Blantyre 2:20:00 - LMT 1903 Mar # From Alex Krivenyshev (2008-07-11): # Seems that English language article "The revival of daylight saving -# time: Energy conservation?"-# No. 16578 (07/11/2008) was originally +# time: Energy conservation?"- No. 16578 (07/11/2008) was originally # published on Monday, June 30, 2008... # # I guess that article in French "Le gouvernement avance l'introduction @@ -657,15 +595,13 @@ Rule Mauritius 1983 only - Mar 21 0:00 0 - Rule Mauritius 2008 only - Oct lastSun 2:00 1:00 S Rule Mauritius 2009 only - Mar lastSun 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis +Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis 4:00 Mauritius MU%sT # Mauritius Time # Agalega Is, Rodriguez # no information; probably like Indian/Mauritius # Mayotte -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou - 3:00 - EAT +# See Africa/Nairobi. # Morocco # See the 'europe' file for Spanish Morocco (Africa/Ceuta). @@ -682,7 +618,8 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou # http://en.afrik.com/news11892.html # From Alex Krivenyshev (2008-05-09): -# The Morocco time change can be confirmed on Morocco web site Maghreb Arabe Presse: +# The Morocco time change can be confirmed on Morocco web site Maghreb Arabe +# Presse: # http://www.map.ma/eng/sections/box3/morocco_shifts_to_da/view # # Morocco shifts to daylight time on June 1st through September 27, Govt. @@ -739,7 +676,7 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou # Here is a link to official document from Royaume du Maroc Premier Ministre, # Ministère de la Modernisation des Secteurs Publics # -# Under Article 1 of Royal Decree No. 455-67 of Act 23 safar 1387 (2 june 1967) +# Under Article 1 of Royal Decree No. 455-67 of Act 23 safar 1387 (2 June 1967) # concerning the amendment of the legal time, the Ministry of Modernization of # Public Sectors announced that the official time in the Kingdom will be # advanced 60 minutes from Sunday 31 May 2009 at midnight. @@ -760,8 +697,8 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou # From Dan Abitol (2011-03-30): # ...Rules for Africa/Casablanca are the following (24h format) -# The 3rd april 2011 at 00:00:00, [it] will be 3rd april 1:00:00 -# The 31th july 2011 at 00:59:59, [it] will be 31th July 00:00:00 +# The 3rd April 2011 at 00:00:00, [it] will be 3rd April 01:00:00 +# The 31st July 2011 at 00:59:59, [it] will be 31st July 00:00:00 # ...Official links of change in morocco # The change was broadcast on the FM Radio # I ve called ANRT (telecom regulations in Morocco) at @@ -831,7 +768,7 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou # announced a bit in advance. On 2012-07-11 the Moroccan government # announced that year's Ramadan daylight-saving transitions would be # 2012-07-20 and 2012-08-20; see -# <http://www.mmsp.gov.ma/fr/actualites.aspx?id=288>. +# http://www.mmsp.gov.ma/fr/actualites.aspx?id=288 # From Andrew Paprocki (2013-07-02): # Morocco announced that the year's Ramadan daylight-savings @@ -857,20 +794,41 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou # will resume again at 02:00 on Saturday, August 2, 2014.... # http://www.mmsp.gov.ma/fr/actualites.aspx?id=586 -# From Paul Eggert (2014-06-05): -# For now, guess that later spring and fall transitions will use 2014's rules, +# From Milamber (2015-06-08): +# (Google Translation) The hour will thus be delayed 60 minutes +# Sunday, June 14 at 3:00, the ministry said in a statement, adding +# that the time will be advanced again 60 minutes Sunday, July 19, +# 2015 at 2:00. The move comes under 2.12.126 Decree of 26 Jumada I +# 1433 (18 April 2012) and the decision of the Head of Government of +# 16 N. 3-29-15 Chaaban 1435 (4 June 2015). +# Source (french): +# http://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/ +# +# From Milamber (2015-06-09): +# http://www.mmsp.gov.ma/fr/actualites.aspx?id=863 +# +# From Michael Deckers (2015-06-09): +# [The gov.ma announcement] would (probably) make the switch on 2015-07-19 go +# from 03:00 to 04:00 rather than from 02:00 to 03:00, as in the patch.... +# I think the patch is correct and the quoted text is wrong; the text in +# <http://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/> agrees +# with the patch. + +# From Paul Eggert (2015-06-08): +# For now, guess that later spring and fall transitions will use 2015's rules, # and guess that Morocco will switch to standard time at 03:00 the last -# Saturday before Ramadan, and back to DST at 02:00 the first Saturday after -# Ramadan. To implement this, transition dates for 2015 through 2037 were +# Sunday before Ramadan, and back to DST at 02:00 the first Sunday after +# Ramadan. To implement this, transition dates for 2016 through 2037 were # determined by running the following program under GNU Emacs 24.3, with the # results integrated by hand into the table below. -# (let ((islamic-year 1436)) +# (let ((islamic-year 1437)) +# (require 'cal-islam) # (while (< islamic-year 1460) # (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year))) # (b (calendar-islamic-to-absolute (list 10 1 islamic-year))) -# (saturday 6)) -# (while (/= saturday (mod (setq a (1- a)) 7))) -# (while (/= saturday (mod b 7)) +# (sunday 0)) +# (while (/= sunday (mod (setq a (1- a)) 7))) +# (while (/= sunday (mod b 7)) # (setq b (1+ b))) # (setq a (calendar-gregorian-from-absolute a)) # (setq b (calendar-gregorian-from-absolute b)) @@ -906,40 +864,38 @@ Rule Morocco 2009 only - Aug 21 0:00 0 - Rule Morocco 2010 only - May 2 0:00 1:00 S Rule Morocco 2010 only - Aug 8 0:00 0 - Rule Morocco 2011 only - Apr 3 0:00 1:00 S -Rule Morocco 2011 only - Jul 31 0 0 - +Rule Morocco 2011 only - Jul 31 0:00 0 - Rule Morocco 2012 2013 - Apr lastSun 2:00 1:00 S -Rule Morocco 2012 only - Sep 30 3:00 0 - Rule Morocco 2012 only - Jul 20 3:00 0 - Rule Morocco 2012 only - Aug 20 2:00 1:00 S +Rule Morocco 2012 only - Sep 30 3:00 0 - Rule Morocco 2013 only - Jul 7 3:00 0 - Rule Morocco 2013 only - Aug 10 2:00 1:00 S Rule Morocco 2013 max - Oct lastSun 3:00 0 - -Rule Morocco 2014 2022 - Mar lastSun 2:00 1:00 S +Rule Morocco 2014 2021 - Mar lastSun 2:00 1:00 S Rule Morocco 2014 only - Jun 28 3:00 0 - Rule Morocco 2014 only - Aug 2 2:00 1:00 S -Rule Morocco 2015 only - Jun 13 3:00 0 - -Rule Morocco 2015 only - Jul 18 2:00 1:00 S -Rule Morocco 2016 only - Jun 4 3:00 0 - -Rule Morocco 2016 only - Jul 9 2:00 1:00 S -Rule Morocco 2017 only - May 20 3:00 0 - -Rule Morocco 2017 only - Jul 1 2:00 1:00 S -Rule Morocco 2018 only - May 12 3:00 0 - -Rule Morocco 2018 only - Jun 16 2:00 1:00 S -Rule Morocco 2019 only - May 4 3:00 0 - -Rule Morocco 2019 only - Jun 8 2:00 1:00 S -Rule Morocco 2020 only - Apr 18 3:00 0 - -Rule Morocco 2020 only - May 30 2:00 1:00 S -Rule Morocco 2021 only - Apr 10 3:00 0 - -Rule Morocco 2021 only - May 15 2:00 1:00 S -Rule Morocco 2022 only - Apr 2 3:00 0 - -Rule Morocco 2022 only - May 7 2:00 1:00 S -Rule Morocco 2023 only - Apr 22 2:00 1:00 S -Rule Morocco 2024 only - Apr 13 2:00 1:00 S -Rule Morocco 2025 only - Apr 5 2:00 1:00 S +Rule Morocco 2015 only - Jun 14 3:00 0 - +Rule Morocco 2015 only - Jul 19 2:00 1:00 S +Rule Morocco 2016 only - Jun 5 3:00 0 - +Rule Morocco 2016 only - Jul 10 2:00 1:00 S +Rule Morocco 2017 only - May 21 3:00 0 - +Rule Morocco 2017 only - Jul 2 2:00 1:00 S +Rule Morocco 2018 only - May 13 3:00 0 - +Rule Morocco 2018 only - Jun 17 2:00 1:00 S +Rule Morocco 2019 only - May 5 3:00 0 - +Rule Morocco 2019 only - Jun 9 2:00 1:00 S +Rule Morocco 2020 only - Apr 19 3:00 0 - +Rule Morocco 2020 only - May 24 2:00 1:00 S +Rule Morocco 2021 only - Apr 11 3:00 0 - +Rule Morocco 2021 only - May 16 2:00 1:00 S +Rule Morocco 2022 only - May 8 2:00 1:00 S +Rule Morocco 2023 only - Apr 23 2:00 1:00 S +Rule Morocco 2024 only - Apr 14 2:00 1:00 S +Rule Morocco 2025 only - Apr 6 2:00 1:00 S Rule Morocco 2026 max - Mar lastSun 2:00 1:00 S -Rule Morocco 2035 only - Oct 27 3:00 0 - -Rule Morocco 2036 only - Oct 18 3:00 0 - -Rule Morocco 2037 only - Oct 10 3:00 0 - +Rule Morocco 2036 only - Oct 19 3:00 0 - +Rule Morocco 2037 only - Oct 4 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26 @@ -963,16 +919,29 @@ Zone Africa/El_Aaiun -0:52:48 - LMT 1934 Jan # El Aaiún 0:00 Morocco WE%sT # Mozambique +# +# Shanks gives 1903-03-01 for the transition to CAT. +# Perhaps the 1911-05-26 Portuguese decree +# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf +# merely made it official? +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Maputo 2:10:20 - LMT 1903 Mar 2:00 - CAT +Link Africa/Maputo Africa/Blantyre # Malawi +Link Africa/Maputo Africa/Bujumbura # Burundi +Link Africa/Maputo Africa/Gaborone # Botswana +Link Africa/Maputo Africa/Harare # Zimbabwe +Link Africa/Maputo Africa/Kigali # Rwanda +Link Africa/Maputo Africa/Lubumbashi # E Dem. Rep. of Congo +Link Africa/Maputo Africa/Lusaka # Zambia # Namibia # The 1994-04-03 transition is from Shanks & Pottenger. # Shanks & Pottenger report no DST after 1998-04; go with IATA. -# From Petronella Sibeene (2007-03-30) in -# <http://allafrica.com/stories/200703300178.html>: +# From Petronella Sibeene (2007-03-30): +# http://allafrica.com/stories/200703300178.html # While the entire country changes its time, Katima Mulilo and other # settlements in Caprivi unofficially will not because the sun there # rises and sets earlier compared to other regions. Chief of @@ -989,28 +958,33 @@ Rule Namibia 1994 max - Sep Sun>=1 2:00 1:00 S Rule Namibia 1995 max - Apr Sun>=1 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8 - 1:30 - SWAT 1903 Mar # SW Africa Time - 2:00 - SAST 1942 Sep 20 2:00 - 2:00 1:00 SAST 1943 Mar 21 2:00 + 1:30 - SWAT 1903 Mar # SW Africa Time + 2:00 - SAST 1942 Sep 20 2:00 + 2:00 1:00 SAST 1943 Mar 21 2:00 2:00 - SAST 1990 Mar 21 # independence 2:00 - CAT 1994 Apr 3 1:00 Namibia WA%sT # Niger -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Niamey 0:08:28 - LMT 1912 - -1:00 - WAT 1934 Feb 26 - 0:00 - GMT 1960 - 1:00 - WAT +# See Africa/Lagos. # Nigeria # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Lagos 0:13:36 - LMT 1919 Sep 1:00 - WAT +Link Africa/Lagos Africa/Bangui # Central African Republic +Link Africa/Lagos Africa/Brazzaville # Rep. of the Congo +Link Africa/Lagos Africa/Douala # Cameroon +Link Africa/Lagos Africa/Kinshasa # Dem. Rep. of the Congo (west) +Link Africa/Lagos Africa/Libreville # Gabon +Link Africa/Lagos Africa/Luanda # Angola +Link Africa/Lagos Africa/Malabo # Equatorial Guinea +Link Africa/Lagos Africa/Niamey # Niger +Link Africa/Lagos Africa/Porto-Novo # Benin # Réunion # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Reunion 3:41:52 - LMT 1911 Jun # Saint-Denis +Zone Indian/Reunion 3:41:52 - LMT 1911 Jun # Saint-Denis 4:00 - RET # Réunion Time # # Crozet Islands also observes Réunion time; see the 'antarctica' file. @@ -1028,9 +1002,7 @@ Zone Indian/Reunion 3:41:52 - LMT 1911 Jun # Saint-Denis # Tromelin - inhabited until at least 1958 # Rwanda -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Kigali 2:00:16 - LMT 1935 Jun - 2:00 - CAT +# See Africa/Maputo. # St Helena # See Africa/Abidjan. @@ -1047,7 +1019,7 @@ Zone Africa/Kigali 2:00:16 - LMT 1935 Jun # Seychelles # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Mahe 3:41:48 - LMT 1906 Jun # Victoria +Zone Indian/Mahe 3:41:48 - LMT 1906 Jun # Victoria 4:00 - SCT # Seychelles Time # From Paul Eggert (2001-05-30): # Aldabra, Farquhar, and Desroches, originally dependencies of the @@ -1060,11 +1032,7 @@ Zone Indian/Mahe 3:41:48 - LMT 1906 Jun # Victoria # See Africa/Abidjan. # Somalia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Mogadishu 3:01:28 - LMT 1893 Nov - 3:00 - EAT 1931 - 2:30 - BEAT 1957 - 3:00 - EAT +# See Africa/Nairobi. # South Africa # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -1074,6 +1042,9 @@ Rule SA 1943 1944 - Mar Sun>=15 2:00 0 - Zone Africa/Johannesburg 1:52:00 - LMT 1892 Feb 8 1:30 - SAST 1903 Mar 2:00 SA SAST +Link Africa/Johannesburg Africa/Maseru # Lesotho +Link Africa/Johannesburg Africa/Mbabane # Swaziland +# # Marion and Prince Edward Is # scientific station since 1947 # no information @@ -1101,16 +1072,10 @@ Zone Africa/Khartoum 2:10:08 - LMT 1931 Link Africa/Khartoum Africa/Juba # Swaziland -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Mbabane 2:04:24 - LMT 1903 Mar - 2:00 - SAST +# See Africa/Johannesburg. # Tanzania -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 - 3:00 - EAT 1948 - 2:45 - BEAUT 1961 - 3:00 - EAT +# See Africa/Nairobi. # Togo # See Africa/Abidjan. @@ -1128,7 +1093,7 @@ Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 # # From Oscar van Vlijmen (2005-05-02): # La Presse, the first national daily newspaper ... -# <http://www.lapresse.tn/archives/archives280405/actualites/lheure.html> +# http://www.lapresse.tn/archives/archives280405/actualites/lheure.html # ... DST for 2005: on: Sun May 1 0h standard time, off: Fri Sept. 30, # 1h standard time. # @@ -1212,23 +1177,12 @@ Rule Tunisia 2006 2008 - Oct lastSun 2:00s 0 - # Shanks & Pottenger say the 1911 switch was on Mar 9; go with Howse's Mar 11. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Tunis 0:40:44 - LMT 1881 May 12 - 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time + 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 1:00 Tunisia CE%sT # Uganda -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Kampala 2:09:40 - LMT 1928 Jul - 3:00 - EAT 1930 - 2:30 - BEAT 1948 - 2:45 - BEAUT 1957 - 3:00 - EAT +# See Africa/Nairobi. # Zambia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Lusaka 1:53:08 - LMT 1903 Mar - 2:00 - CAT - # Zimbabwe -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Africa/Harare 2:04:12 - LMT 1903 Mar - 2:00 - CAT +# See Africa/Maputo. diff --git a/contrib/tzdata/antarctica b/contrib/tzdata/antarctica index 912232a..6da1aef 100644 --- a/contrib/tzdata/antarctica +++ b/contrib/tzdata/antarctica @@ -4,51 +4,14 @@ # From Paul Eggert (1999-11-15): # To keep things manageable, we list only locations occupied year-round; see # COMNAP - Stations and Bases -# <http://www.comnap.aq/comnap/comnap.nsf/P/Stations/> +# http://www.comnap.aq/comnap/comnap.nsf/P/Stations/ # and # Summary of the Peri-Antarctic Islands (1998-07-23) -# <http://www.spri.cam.ac.uk/bob/periant.htm> +# http://www.spri.cam.ac.uk/bob/periant.htm # for information. # Unless otherwise specified, we have no time zone information. -# -# Except for the French entries, -# I made up all time zone abbreviations mentioned here; corrections welcome! -# FORMAT is 'zzz' and GMTOFF is 0 for locations while uninhabited. -# These rules are stolen from the 'southamerica' file. -# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule ArgAQ 1964 1966 - Mar 1 0:00 0 - -Rule ArgAQ 1964 1966 - Oct 15 0:00 1:00 S -Rule ArgAQ 1967 only - Apr 2 0:00 0 - -Rule ArgAQ 1967 1968 - Oct Sun>=1 0:00 1:00 S -Rule ArgAQ 1968 1969 - Apr Sun>=1 0:00 0 - -Rule ArgAQ 1974 only - Jan 23 0:00 1:00 S -Rule ArgAQ 1974 only - May 1 0:00 0 - -Rule ChileAQ 1972 1986 - Mar Sun>=9 3:00u 0 - -Rule ChileAQ 1974 1987 - Oct Sun>=9 4:00u 1:00 S -Rule ChileAQ 1987 only - Apr 12 3:00u 0 - -Rule ChileAQ 1988 1989 - Mar Sun>=9 3:00u 0 - -Rule ChileAQ 1988 only - Oct Sun>=1 4:00u 1:00 S -Rule ChileAQ 1989 only - Oct Sun>=9 4:00u 1:00 S -Rule ChileAQ 1990 only - Mar 18 3:00u 0 - -Rule ChileAQ 1990 only - Sep 16 4:00u 1:00 S -Rule ChileAQ 1991 1996 - Mar Sun>=9 3:00u 0 - -Rule ChileAQ 1991 1997 - Oct Sun>=9 4:00u 1:00 S -Rule ChileAQ 1997 only - Mar 30 3:00u 0 - -Rule ChileAQ 1998 only - Mar Sun>=9 3:00u 0 - -Rule ChileAQ 1998 only - Sep 27 4:00u 1:00 S -Rule ChileAQ 1999 only - Apr 4 3:00u 0 - -Rule ChileAQ 1999 2010 - Oct Sun>=9 4:00u 1:00 S -Rule ChileAQ 2000 2007 - Mar Sun>=9 3:00u 0 - -# N.B.: the end of March 29 in Chile is March 30 in Universal time, -# which is used below in specifying the transition. -Rule ChileAQ 2008 only - Mar 30 3:00u 0 - -Rule ChileAQ 2009 only - Mar Sun>=9 3:00u 0 - -Rule ChileAQ 2010 only - Apr Sun>=1 3:00u 0 - -Rule ChileAQ 2011 only - May Sun>=2 3:00u 0 - -Rule ChileAQ 2011 only - Aug Sun>=16 4:00u 1:00 S -Rule ChileAQ 2012 max - Apr Sun>=23 3:00u 0 - -Rule ChileAQ 2012 max - Sep Sun>=2 4:00u 1:00 S +# FORMAT is '-00' and GMTOFF is 0 for locations while uninhabited. # Argentina - year-round bases # Belgrano II, Confin Coast, -770227-0343737, since 1972-02-05 @@ -63,8 +26,8 @@ Rule ChileAQ 2012 max - Sep Sun>=2 4:00u 1:00 S # Heard Island, McDonald Islands (uninhabited) # previously sealers and scientific personnel wintered # Margaret Turner reports -# <http://web.archive.org/web/20021204222245/http://www.dstc.qut.edu.au/DST/marg/daylight.html> -# (1999-09-30) that they're UTC+5, with no DST; +# http://web.archive.org/web/20021204222245/http://www.dstc.qut.edu.au/DST/marg/daylight.html +# (1999-09-30) that they're UT +05, with no DST; # presumably this is when they have visitors. # # year-round bases @@ -101,34 +64,36 @@ Rule ChileAQ 2012 max - Sep Sun>=2 4:00u 1:00 S # Background: # http://www.timeanddate.com/news/time/antartica-time-changes-2010.html +# From Steffen Thorsen (2016-10-28): +# Australian Antarctica Division informed us that Casey changed time +# zone to UTC+11 in "the morning of 22nd October 2016". + # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Antarctica/Casey 0 - zzz 1969 - 8:00 - AWST 2009 Oct 18 2:00 - # Australian Western Std Time - 11:00 - CAST 2010 Mar 5 2:00 - # Casey Time - 8:00 - AWST 2011 Oct 28 2:00 - 11:00 - CAST 2012 Feb 21 17:00u - 8:00 - AWST -Zone Antarctica/Davis 0 - zzz 1957 Jan 13 - 7:00 - DAVT 1964 Nov # Davis Time - 0 - zzz 1969 Feb - 7:00 - DAVT 2009 Oct 18 2:00 - 5:00 - DAVT 2010 Mar 10 20:00u - 7:00 - DAVT 2011 Oct 28 2:00 - 5:00 - DAVT 2012 Feb 21 20:00u - 7:00 - DAVT -Zone Antarctica/Mawson 0 - zzz 1954 Feb 13 - 6:00 - MAWT 2009 Oct 18 2:00 - # Mawson Time - 5:00 - MAWT +Zone Antarctica/Casey 0 - -00 1969 + 8:00 - +08 2009 Oct 18 2:00 + 11:00 - +11 2010 Mar 5 2:00 + 8:00 - +08 2011 Oct 28 2:00 + 11:00 - +11 2012 Feb 21 17:00u + 8:00 - +08 2016 Oct 22 + 11:00 - +11 +Zone Antarctica/Davis 0 - -00 1957 Jan 13 + 7:00 - +07 1964 Nov + 0 - -00 1969 Feb + 7:00 - +07 2009 Oct 18 2:00 + 5:00 - +05 2010 Mar 10 20:00u + 7:00 - +07 2011 Oct 28 2:00 + 5:00 - +05 2012 Feb 21 20:00u + 7:00 - +07 +Zone Antarctica/Mawson 0 - -00 1954 Feb 13 + 6:00 - +06 2009 Oct 18 2:00 + 5:00 - +05 # References: # Casey Weather (1998-02-26) -# <http://www.antdiv.gov.au/aad/exop/sfo/casey/casey_aws.html> +# http://www.antdiv.gov.au/aad/exop/sfo/casey/casey_aws.html # Davis Station, Antarctica (1998-02-26) -# <http://www.antdiv.gov.au/aad/exop/sfo/davis/video.html> +# http://www.antdiv.gov.au/aad/exop/sfo/davis/video.html # Mawson Station, Antarctica (1998-02-25) -# <http://www.antdiv.gov.au/aad/exop/sfo/mawson/video.html> +# http://www.antdiv.gov.au/aad/exop/sfo/mawson/video.html # Belgium - year-round base # Princess Elisabeth, Queen Maud Land, -713412+0231200, since 2007 @@ -154,7 +119,7 @@ Zone Antarctica/Mawson 0 - zzz 1954 Feb 13 # France - year-round bases (also see "France & Italy") # # From Antoine Leca (1997-01-20): -# Time data are from Nicole Pailleau at the IFRTP +# Time data entries are from Nicole Pailleau at the IFRTP # (French Institute for Polar Research and Technology). # She confirms that French Southern Territories and Terre Adélie bases # don't observe daylight saving time, even if Terre Adélie supplies came @@ -174,8 +139,8 @@ Zone Antarctica/Mawson 0 - zzz 1954 Feb 13 # fishing stations operated variously 1819/1931 # # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Kerguelen 0 - zzz 1950 # Port-aux-Français - 5:00 - TFT # ISO code TF Time +Zone Indian/Kerguelen 0 - -00 1950 # Port-aux-Français + 5:00 - +05 # # year-round base in the main continent # Dumont d'Urville, Île des Pétrels, -6640+14001, since 1956-11 @@ -185,10 +150,10 @@ Zone Indian/Kerguelen 0 - zzz 1950 # Port-aux-Français # It was destroyed by fire on 1952-01-14. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Antarctica/DumontDUrville 0 - zzz 1947 - 10:00 - PMT 1952 Jan 14 # Port-Martin Time - 0 - zzz 1956 Nov - 10:00 - DDUT # Dumont-d'Urville Time +Zone Antarctica/DumontDUrville 0 - -00 1947 + 10:00 - +10 1952 Jan 14 + 0 - -00 1956 Nov + 10:00 - +10 # France & Italy - year-round base # Concordia, -750600+1232000, since 2005 @@ -213,11 +178,11 @@ Zone Antarctica/DumontDUrville 0 - zzz 1947 # was established on 1957-01-29. Since Syowa station is still the main # station of Japan, it's appropriate for the principal location. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Antarctica/Syowa 0 - zzz 1957 Jan 29 - 3:00 - SYOT # Syowa Time +Zone Antarctica/Syowa 0 - -00 1957 Jan 29 + 3:00 - +03 # See: # NIPR Antarctic Research Activities (1999-08-17) -# <http://www.nipr.ac.jp/english/ara01.html> +# http://www.nipr.ac.jp/english/ara01.html # S Korea - year-round base # Jang Bogo, Terra Nova Bay, -743700+1641205 since 2014 @@ -251,20 +216,20 @@ Zone Antarctica/Syowa 0 - zzz 1957 Jan 29 # correct, but they should be quite close to the actual dates. # # From Paul Eggert (2014-03-21): -# The CET-switching Troll rules require zic from tzcode 2014b or later, so as +# The CET-switching Troll rules require zic from tz 2014b or later, so as # suggested by Bengt-Inge Larsson comment them out for now, and approximate # with only UTC and CEST. Uncomment them when 2014b is more prevalent. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -#Rule Troll 2005 max - Mar 1 1:00u 1:00 CET -Rule Troll 2005 max - Mar lastSun 1:00u 2:00 CEST -#Rule Troll 2005 max - Oct lastSun 1:00u 1:00 CET -#Rule Troll 2004 max - Nov 7 1:00u 0:00 UTC +#Rule Troll 2005 max - Mar 1 1:00u 1:00 +01 +Rule Troll 2005 max - Mar lastSun 1:00u 2:00 +02 +#Rule Troll 2005 max - Oct lastSun 1:00u 1:00 +01 +#Rule Troll 2004 max - Nov 7 1:00u 0:00 +00 # Remove the following line when uncommenting the above '#Rule' lines. -Rule Troll 2004 max - Oct lastSun 1:00u 0:00 UTC +Rule Troll 2004 max - Oct lastSun 1:00u 0:00 +00 # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Antarctica/Troll 0 - zzz 2005 Feb 12 - 0:00 Troll %s +Zone Antarctica/Troll 0 - -00 2005 Feb 12 + 0:00 Troll %s # Poland - year-round base # Arctowski, King George Island, -620945-0582745, since 1977 @@ -281,8 +246,8 @@ Zone Antarctica/Troll 0 - zzz 2005 Feb 12 # year-round from 1960/61 to 1992 # Vostok, since 1957-12-16, temporarily closed 1994-02/1994-11 -# From Craig Mundell (1994-12-15) -# <http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP>: +# From Craig Mundell (1994-12-15): +# http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP # Vostok, which is one of the Russian stations, is set on the same # time as Moscow, Russia. # @@ -302,10 +267,10 @@ Zone Antarctica/Troll 0 - zzz 2005 Feb 12 # changes during the year and does not necessarily correspond to mean # solar noon. So the Vostok time might have been whatever the clocks # happened to be during their visit. So we still don't really know what time -# it is at Vostok. But we'll guess UTC+6. +# it is at Vostok. But we'll guess +06. # -Zone Antarctica/Vostok 0 - zzz 1957 Dec 16 - 6:00 - VOST # Vostok time +Zone Antarctica/Vostok 0 - -00 1957 Dec 16 + 6:00 - +06 # S Africa - year-round bases # Marion Island, -4653+03752 @@ -337,8 +302,8 @@ Zone Antarctica/Vostok 0 - zzz 1957 Dec 16 # <http://webexhibits.org/daylightsaving/g.html> says Rothera is -03 all year. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Antarctica/Rothera 0 - zzz 1976 Dec 1 - -3:00 - ROTT # Rothera time +Zone Antarctica/Rothera 0 - -00 1976 Dec 1 + -3:00 - -03 # Uruguay - year round base # Artigas, King George Island, -621104-0585107 @@ -346,20 +311,7 @@ Zone Antarctica/Rothera 0 - zzz 1976 Dec 1 # USA - year-round bases # # Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) -# -# From Ethan Dicks (1996-10-06): -# It keeps the same time as Punta Arenas, Chile, because, just like us -# and the South Pole, that's the other end of their supply line.... -# I verified with someone who was there that since 1980, -# Palmer has followed Chile. Prior to that, before the Falklands War, -# Palmer used to be supplied from Argentina. -# -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Antarctica/Palmer 0 - zzz 1965 - -4:00 ArgAQ AR%sT 1969 Oct 5 - -3:00 ArgAQ AR%sT 1982 May - -4:00 ChileAQ CL%sT -# +# See 'southamerica' for Antarctica/Palmer, since it uses South American DST. # # McMurdo Station, Ross Island, since 1955-12 # Amundsen-Scott South Pole Station, continuously occupied since 1956-11-20 diff --git a/contrib/tzdata/asia b/contrib/tzdata/asia index 6130e59..67164b3 100644 --- a/contrib/tzdata/asia +++ b/contrib/tzdata/asia @@ -1,32 +1,36 @@ # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. -# This data is by no means authoritative; if you think you know better, +# This file is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz@iana.org for general use in the future). +# tz@iana.org for general use in the future). For more, please see +# the file CONTRIBUTING in the tz distribution. -# From Paul Eggert (2013-08-11): +# From Paul Eggert (2015-08-08): # -# A good source for time zone historical data outside the U.S. is +# Unless otherwise specified, the source for data through 1990 is: # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003). +# Unfortunately this book contains many errors and cites no sources. # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries -# of the IATA's data after 1990. -# -# Except where otherwise noted, Shanks & Pottenger is the source for -# entries through 1990, and IATA SSIM is the source for entries afterwards. +# of the IATA's data after 1990. Except where otherwise noted, +# IATA SSIM is the source for entries after 1990. # # Another source occasionally used is Edward W. Whitman, World Time Differences, # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which # I found in the UCLA library. # # For data circa 1899, a common source is: -# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 -# <http://www.jstor.org/stable/1774359>. +# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. +# http://www.jstor.org/stable/1774359 +# +# For Russian data circa 1919, a source is: +# Byalokoz EL. New Counting of Time in Russia since July 1, 1919. +# (See the 'europe' file for a fuller citation.) # # A reliable and entertaining source about time zones is # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). @@ -39,18 +43,20 @@ # 2:00 EET EEST Eastern European Time # 2:00 IST IDT Israel # 3:00 AST ADT Arabia* -# 3:30 IRST IRDT Iran +# 3:30 IRST IRDT Iran* # 4:00 GST Gulf* # 5:30 IST India -# 7:00 ICT Indochina* +# 7:00 ICT Indochina, most times and locations* # 7:00 WIB west Indonesia (Waktu Indonesia Barat) # 8:00 WITA central Indonesia (Waktu Indonesia Tengah) # 8:00 CST China +# 8:00 IDT Indochina, 1943-45, 1947-55, 1960-75 (some locations)* # 8:00 JWST Western Standard Time (Japan, 1896/1937)* +# 8:30 KST KDT Korea when at +0830* # 9:00 JCST Central Standard Time (Japan, 1896/1937) # 9:00 WIT east Indonesia (Waktu Indonesia Timur) # 9:00 JST JDT Japan -# 9:00 KST KDT Korea +# 9:00 KST KDT Korea when at +09 # 9:30 ACST Australian Central Standard Time # # See the 'europe' file for Russia and Turkey in Asia. @@ -73,13 +79,9 @@ Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 - Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 - Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 - -Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 - -Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S -Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S -Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 - -Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S -Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 - -Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 - +Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 - +Rule RussiaAsia 1985 2011 - Mar lastSun 2:00s 1:00 S +Rule RussiaAsia 1996 2011 - Oct lastSun 2:00s 0 - # Afghanistan # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -114,36 +116,40 @@ Zone Asia/Kabul 4:36:48 - LMT 1890 # http://www.worldtimezone.com/dst_news/dst_news_armenia03.html # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 - 3:00 - YERT 1957 Mar # Yerevan Time - 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s - 3:00 1:00 YERST 1991 Sep 23 # independence - 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s - 4:00 - AMT 1997 - 4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s - 4:00 - AMT + 3:00 - +03 1957 Mar + 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s + 3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s + 4:00 - +04 1997 + 4:00 RussiaAsia +04/+05 # Azerbaijan + # From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23): # According to the resolution of Cabinet of Ministers, 1997 -# Resolution available at: http://aif.az/docs/daylight_res.pdf +# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17). +# http://code.az/files/daylight_res.pdf + +# From Steffen Thorsen (2016-03-17): +# ... the Azerbaijani Cabinet of Ministers has cancelled switching to +# daylight saving time.... +# http://www.azernews.az/azerbaijan/94137.html +# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html +# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Azer 1997 max - Mar lastSun 4:00 1:00 S -Rule Azer 1997 max - Oct lastSun 5:00 0 - +Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S +Rule Azer 1997 2015 - Oct lastSun 5:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:19:24 - LMT 1924 May 2 - 3:00 - BAKT 1957 Mar # Baku Time - 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s - 3:00 1:00 BAKST 1991 Aug 30 # independence - 3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00 - 4:00 - AZT 1996 # Azerbaijan time - 4:00 EUAsia AZ%sT 1997 - 4:00 Azer AZ%sT + 3:00 - +03 1957 Mar + 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s + 3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s + 4:00 - +04 1996 + 4:00 EUAsia +04/+05 1997 + 4:00 Azer +04/+05 # Bahrain -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah - 4:00 - GST 1972 Jun - 3:00 - AST +# See Asia/Qatar. # Bangladesh # From Alexander Krivenyshev (2009-05-13): @@ -219,7 +225,7 @@ Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Dhaka 2009 only - Jun 19 23:00 1:00 S -Rule Dhaka 2009 only - Dec 31 23:59 0 - +Rule Dhaka 2009 only - Dec 31 24:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dhaka 6:01:40 - LMT 1890 @@ -250,7 +256,7 @@ Zone Indian/Chagos 4:49:40 - LMT 1907 # Brunei # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan +Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan 7:30 - BNT 1933 8:00 - BNT @@ -259,19 +265,15 @@ Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan # Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon - 6:24:40 - RMT 1920 # Rangoon Mean Time? - 6:30 - BURT 1942 May # Burma Time - 9:00 - JST 1945 May 3 - 6:30 - MMT # Myanmar Time +Zone Asia/Yangon 6:24:40 - LMT 1880 # or Rangoon + 6:24:40 - RMT 1920 # Rangoon Mean Time? + 6:30 - BURT 1942 May # Burma Time + 9:00 - JST 1945 May 3 + 6:30 - MMT # Myanmar Time # Cambodia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9 - 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT? - 7:00 - ICT 1912 May - 8:00 - ICT 1931 May - 7:00 - ICT +# See Asia/Bangkok. + # China @@ -356,8 +358,8 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # * The Republic of China instituted Beijing mean solar time effective # the official calendar book of 1914. # * The French Concession in Shanghai set up signal stations in -# French docks in the 1890s, controled by Xujiahui (Zikawei) -# Obervatory and set to local mean time. +# French docks in the 1890s, controlled by Xujiahui (Zikawei) +# Observatory and set to local mean time. # * "From the end of the 19th century" it changed to UT+8. # * Chinese Customs (by then reduced to a tool of foreign powers) # eventually standardized on this time for all ports, and it @@ -378,35 +380,35 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is # different - the occupied districts going by Tokyo time, an hour # ahead of that prevailing in the rest of Shanghai." Guess that the -# Xujiahui Observatory was under French control and stuck with UT+8. +# Xujiahui Observatory was under French control and stuck with UT +08. # # In earlier versions of this file, China had many separate Zone entries, but -# this was based on what was apparently incorrect data in Shanks & Pottenger. +# this was based on what were apparently incorrect data in Shanks & Pottenger. # This has now been simplified to the two entries Asia/Shanghai and # Asia/Urumqi, with the others being links for backward compatibility. # Proposed in 1918 and theoretically in effect until 1949 (although in practice # mainly observed in coastal areas), the five zones were: # -# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT+8.5 +# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30 # Asia/Harbin (currently a link to Asia/Shanghai) # Heilongjiang (except Mohe county), Jilin # -# Zhongyuan Time ("Central plain Time") UT+8 +# Zhongyuan Time ("Central plain Time") UT +08 # Asia/Shanghai # most of China # This currently represents most other zones as well, # as apparently these regions have been the same since 1970. # Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest. -# Guo says Shanghai switched to UT+8 "from the end of the 19th century". +# Guo says Shanghai switched to UT +08 "from the end of the 19th century". # -# Long-shu Time (probably due to Long and Shu being two names of that area) UT+7 +# Long-shu Time (probably due to Long and Shu being two names of the area) UT +07 # Asia/Chongqing (currently a link to Asia/Shanghai) # Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan; # most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong # counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing, # Yangchun, Yangjiang, Yu'nan, and Yunfu. # -# Xin-zang Time ("Xinjiang-Tibet Time") UT+6 +# Xin-zang Time ("Xinjiang-Tibet Time") UT +06 # Asia/Urumqi # This currently represents Kunlun Time as well, # as apparently the two regions have been the same since 1970. @@ -419,7 +421,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami, # Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan. # -# Kunlun Time UT+5.5 +# Kunlun Time UT +05:30 # Asia/Kashgar (currently a link to Asia/Urumqi) # West Tibet, including Pulan, Aheqi, Shufu, Shule; # West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke, @@ -435,7 +437,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # # On the other hand, ethnic Uyghurs, who make up about half the # population of Xinjiang, typically use "Xinjiang time" which is two -# hours behind Beijing time, or UTC +0600. The government of the Xinjiang +# hours behind Beijing time, or UT +06. The government of the Xinjiang # Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as # local governments such as the Ürümqi city government use both times in # publications, referring to what is popularly called Xinjiang time as @@ -491,8 +493,8 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # having the same time as Beijing. # From Paul Eggert (2014-06-30): -# In the early days of the PRC, Tibet was given its own time zone (UT+6) but -# this was withdrawn in 1959 and never reinstated; see Tubten Khétsun, +# In the early days of the PRC, Tibet was given its own time zone (UT +06) +# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun, # Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN # 978-0231142861 (2008), translator's introduction by Matthew Akester, p x. # As this is before our 1970 cutoff, Tibet doesn't need a separate zone. @@ -501,17 +503,17 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government" # <http://www.sinkiang.gov.cn/service/ourworking/> (2014-04-22). # Unfortunately, we have no good records of time in Xinjiang before 1986. -# During the 20th century parts of Xinjiang were ruled by the Qing dyansty, +# During the 20th century parts of Xinjiang were ruled by the Qing dynasty, # the Republic of China, various warlords, the First and Second East Turkestan # Republics, the Soviet Union, the Kuomintang, and the People's Republic of # China, and tracking down all these organizations' timekeeping rules would be # quite a trick. Approximate this lost history by a transition from LMT to -# XJT at the start of 1928, the year of accession of the warlord Jin Shuren, +# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren, # which happens to be the date given by Shanks & Pottenger (no doubt as a -# guess) as the transition from LMT. Ignore the usage of UT+8 before -# 1986-02-01 under the theory that the transition date to UT+8 is unknown and +# guess) as the transition from LMT. Ignore the usage of +08 before +# 1986-02-01 under the theory that the transition date to +08 is unknown and # that the sort of users who prefer Asia/Urumqi now typically ignored the -# UT+8 mandate back then. +# +08 mandate back then. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Beijing time, used throughout China; represented by Shanghai. @@ -698,25 +700,25 @@ Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 # Central Weather Bureau website was not correct. # # Original Bulletin: -# <http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF> -# <http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0> (cont.) +# http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF +# http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0 (cont.) # # In 1947, DST in Taiwan was expanded to Oct 31. There is a backup of that # telegram announcement from Taiwan Province Government: # -# <http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431> +# http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431 # # Here is a brief translation: # # The Summer Time this year is adopted from midnight Apr 15 until Sep 20 # midnight. To save (energy?) consumption, we're expanding Summer Time -# adption till Oct 31 midnight. +# adoption till Oct 31 midnight. # # The Central Weather Bureau website didn't mention that, however it can # be found from historical government announcement database. # From Paul Eggert (2014-07-03): -# As per Yu-Cheng Chuang, say that Taiwan was at UT+9 from 1937-10-01 +# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01 # until 1945-09-21 at 01:00, overriding Shanks & Pottenger. # Likewise, use Yu-Cheng Chuang's data for DST in Taiwan. @@ -741,7 +743,7 @@ Rule Taiwan 1979 only - Oct 1 0:00 0 S # Taipei or Taibei or T'ai-pei Zone Asia/Taipei 8:06:00 - LMT 1896 Jan 1 8:00 - JWST 1937 Oct 1 - 9:00 - JST 1945 Sep 21 01:00 + 9:00 - JST 1945 Sep 21 1:00 8:00 Taiwan C%sT # Macau (Macao, Aomen) @@ -761,7 +763,7 @@ Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Macau 7:34:20 - LMT 1912 +Zone Asia/Macau 7:34:20 - LMT 1912 Jan 1 8:00 Macau MO%sT 1999 Dec 20 # return to China 8:00 PRC C%sT @@ -769,9 +771,19 @@ Zone Asia/Macau 7:34:20 - LMT 1912 ############################################################################### # Cyprus -# + # Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT. +# IATA SSIM (1998-09) has Cyprus using EU rules for the first time. + +# From Paul Eggert (2016-09-09): +# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's +# lead and switched from +02/+03 to +03 year-round. +# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/ # +# From Even Scharning (2016-10-31): +# Looks like the time zone split in Cyprus went through last night. +# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/ + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Cyprus 1975 only - Apr 13 0:00 1:00 S Rule Cyprus 1975 only - Oct 12 0:00 0 - @@ -786,7 +798,10 @@ Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14 2:00 Cyprus EE%sT 1998 Sep 2:00 EUAsia EE%sT -# IATA SSIM (1998-09) has Cyprus using EU rules for the first time. +Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14 + 2:00 Cyprus EE%sT 1998 Sep + 2:00 EUAsia EE%sT 2016 Sep 8 + 3:00 - +03 # Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72. # However, for various reasons many users expect to find it under Europe. @@ -823,21 +838,22 @@ Link Asia/Nicosia Europe/Nicosia # I don't know what can be done, especially knowing that some years ago our # DST rules where changed THREE TIMES during one month. -# Milne says Tbilisi (Tiflis) time was 2:59:05.7; round to nearest.) +# Milne 1899 says Tbilisi (Tiflis) time was 2:59:05.7. +# Byalokoz 1919 says Georgia was 2:59:11. +# Go with Byalokoz. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Tbilisi 2:59:06 - LMT 1880 - 2:59:06 - TBMT 1924 May 2 # Tbilisi Mean Time - 3:00 - TBIT 1957 Mar # Tbilisi Time - 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s - 3:00 1:00 TBIST 1991 Apr 9 # independence - 3:00 RussiaAsia GE%sT 1992 # Georgia Time - 3:00 E-EurAsia GE%sT 1994 Sep lastSun - 4:00 E-EurAsia GE%sT 1996 Oct lastSun - 4:00 1:00 GEST 1997 Mar lastSun - 4:00 E-EurAsia GE%sT 2004 Jun 27 - 3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00 - 4:00 - GET +Zone Asia/Tbilisi 2:59:11 - LMT 1880 + 2:59:11 - TBMT 1924 May 2 # Tbilisi Mean Time + 3:00 - +03 1957 Mar + 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s + 3:00 RussiaAsia +03/+04 1992 + 3:00 E-EurAsia +03/+04 1994 Sep lastSun + 4:00 E-EurAsia +04/+05 1996 Oct lastSun + 4:00 1:00 +05 1997 Mar lastSun + 4:00 E-EurAsia +04/+05 2004 Jun 27 + 3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00 + 4:00 - +04 # East Timor @@ -864,16 +880,25 @@ Zone Asia/Tbilisi 2:59:06 - LMT 1880 # midnight on Saturday, September 16. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Dili 8:22:20 - LMT 1912 +Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1 8:00 - TLT 1942 Feb 21 23:00 # E Timor Time 9:00 - JST 1945 Sep 23 9:00 - TLT 1976 May 3 - 8:00 - WITA 2000 Sep 17 00:00 + 8:00 - WITA 2000 Sep 17 0:00 9:00 - TLT # India + +# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic +# http://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/ +# (2015-12-22): +# In January 1906, several thousand cotton-mill workers rioted on the +# outskirts of Bombay.... They were protesting the proposed abolition of +# local time in favor of Indian Standard Time.... Journalists called this +# dispute the "Battle of the Clocks." It lasted nearly half a century. + # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata +Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata 5:53:20 - HMT 1941 Oct # Howrah Mean Time? 6:30 - BURT 1942 May 15 # Burma Time 5:30 - IST 1942 Sep @@ -886,8 +911,12 @@ Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata # Indonesia # +# From Paul Eggert (2014-09-06): +# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia +# civil time was 7:07:12.5; round to even for Jakarta. +# # From Gwillim Law (2001-05-28), overriding Shanks & Pottenger: -# <http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime> +# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime # says that Indonesia's time zones changed on 1988-01-01. Looking at some # time zone maps, I think that must refer to Western Borneo (Kalimantan Barat # and Kalimantan Tengah) switching from UTC+8 to UTC+7. @@ -901,7 +930,7 @@ Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata # These would be the earliest possible times for a change. # Régimes horaires pour le monde entier, by Henri Le Corre, (Éditions # Traditionnelles, 1987, Paris) says that Java and Madura switched -# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura +# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura # (Hollandia). For now, assume all Indonesian locations other than Jayapura # switched on 1945-09-23. # @@ -912,11 +941,11 @@ Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata # summary published by the Time and Frequency Laboratory of the # Research Center for Calibration, Instrumentation and Metrology, # Indonesia, <http://time.kim.lipi.go.id/time-eng.php> (2006-09-29). -# The abbreviations are: +# The time zone abbreviations and UT offsets are: # -# WIB - UTC+7 - Waktu Indonesia Barat (Indonesia western time) -# WITA - UTC+8 - Waktu Indonesia Tengah (Indonesia central time) -# WIT - UTC+9 - Waktu Indonesia Timur (Indonesia eastern time) +# WIB - +07 - Waktu Indonesia Barat (Indonesia western time) +# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time) +# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time) # # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Java, Sumatra @@ -924,7 +953,7 @@ Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10 # Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13, # but this must be a typo. 7:07:12 - BMT 1923 Dec 31 23:47:12 # Batavia - 7:20 - JAVT 1932 Nov # Java Time + 7:20 - JAVT 1932 Nov # Java Time 7:30 - WIB 1942 Mar 23 9:00 - JST 1945 Sep 23 7:30 - WIB 1948 May @@ -1023,7 +1052,7 @@ Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov # # From Roozbeh Pournader (2007-11-05): # This is quoted from Official Gazette of the Islamic Republic of -# Iran, Volume 63, Number 18242, dated Tuesday 1386/6/24 +# Iran, Volume 63, No. 18242, dated Tuesday 1386/6/24 # [2007-10-16]. I am doing the best translation I can:... # The official time of the country will be moved forward for one hour # on the 24 hours of the first day of the month of Farvardin and will @@ -1078,11 +1107,18 @@ Rule Iran 2032 2033 - Mar 21 0:00 1:00 D Rule Iran 2032 2033 - Sep 21 0:00 0 S Rule Iran 2034 2035 - Mar 22 0:00 1:00 D Rule Iran 2034 2035 - Sep 22 0:00 0 S -Rule Iran 2036 2037 - Mar 21 0:00 1:00 D -Rule Iran 2036 2037 - Sep 21 0:00 0 S +# +# The following rules are approximations starting in the year 2038. +# These are the best post-2037 approximations available, given the +# restrictions of a single rule using a Gregorian-based data format. +# At some point this table will need to be extended, though quite +# possibly Iran will change the rules first. +Rule Iran 2036 max - Mar 21 0:00 1:00 D +Rule Iran 2036 max - Sep 21 0:00 0 S + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tehran 3:25:44 - LMT 1916 - 3:25:44 - TMT 1946 # Tehran Mean Time + 3:25:44 - TMT 1946 # Tehran Mean Time 3:30 - IRST 1977 Nov 4:00 Iran IR%sT 1979 3:30 Iran IR%sT @@ -1127,7 +1163,7 @@ Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D Rule Iraq 1991 2007 - Oct 1 3:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baghdad 2:57:40 - LMT 1890 - 2:57:36 - BMT 1918 # Baghdad Mean Time? + 2:57:36 - BMT 1918 # Baghdad Mean Time? 3:00 - AST 1982 May 3:00 Iraq A%sT @@ -1355,7 +1391,7 @@ Rule Zion 2013 max - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Jerusalem 2:20:54 - LMT 1880 - 2:20:40 - JMT 1918 # Jerusalem Mean Time? + 2:20:40 - JMT 1918 # Jerusalem Mean Time? 2:00 Zion I%sT @@ -1371,8 +1407,8 @@ Zone Asia/Jerusalem 2:20:54 - LMT 1880 # daylight saving between 1948 and 1951, but "the system was discontinued # because the public believed it would lead to longer working hours." -# From Mayumi Negishi in the 2005-08-10 Japan Times -# <http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm>: +# From Mayumi Negishi in the 2005-08-10 Japan Times: +# http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm # Occupation authorities imposed daylight-saving time on Japan on # [1948-05-01].... But lack of prior debate and the execution of # daylight-saving time just three days after the bill was passed generated @@ -1396,7 +1432,8 @@ Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D # From Hideyuki Suzuki (1998-11-09): # 'Tokyo' usually stands for the former location of Tokyo Astronomical -# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s), 35 degrees 39' 16.0" N. +# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s), +# 35 degrees 39' 16.0" N. # This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996' # edited by National Astronomical Observatory of Japan.... # JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST). @@ -1535,24 +1572,7 @@ Zone Asia/Amman 2:23:44 - LMT 1931 # Kazakhstan -# From Paul Eggert (1996-11-22): -# Andrew Evtichov (1996-04-13) writes that Kazakhstan -# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk) -# and Aqtau (formerly Shevchenko) are the largest cities in their zones. -# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time -# IATA SSIM mentions a third time zone in Kazakhstan. - -# From Paul Eggert (2006-03-22): -# German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses -# RussiaAsia rules, instead of switching at 00:00 as the IATA has it. -# Go with Shanks & Pottenger, who have them always using RussiaAsia rules. -# Also go with the following claims of Shanks & Pottenger: -# -# - Kazakhstan did not observe DST in 1991. -# - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00. -# - Oral switched from +5:00 to +4:00 in spring 1989. - -# From Kazakhstan Embassy's News Bulletin #11 +# From Kazakhstan Embassy's News Bulletin No. 11 # <http://www.kazsociety.org.uk/news/2005/03/30.htm> (2005-03-21): # The Government of Kazakhstan passed a resolution March 15 abolishing # daylight saving time citing lack of economic benefits and health @@ -1568,68 +1588,239 @@ Zone Asia/Amman 2:23:44 - LMT 1931 # everything else.... I guess that would make Kazakhstan time zones # de jure UTC+5 and UTC+6 respectively. +# From Stepan Golosunov (2016-03-27) ([*] means see later comments below): +# Review of the linked documents from http://adilet.zan.kz/ +# produced the following data for post-1991 Kazakhstan: +# +# 0. Act of the Cabinet of Ministers of the USSR +# from 1991-02-04 No. 20 +# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545 +# removed the extra hour ("decree time") on the territory of the USSR +# starting with the last Sunday of March 1991. +# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR, +# Turkmen SSR and Uzbek SSR to not have "summer" time. +# +# The 1992-01-13 act also refers to the act of the Cabinet of Ministers +# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet +# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its +# text. +# +# According to Izvestia newspaper No. 68 (23334) from 1991-03-20 +# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via +# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during +# transition to "summer" time: +# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova, +# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug +# were to move clocks 1 hour forward. +# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik +# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts +# of the Uzbek SSR were to move clocks 1 hour backwards. +# Other territories were to not move clocks. +# When the "summer" time would end on 1991-09-29, clocks were to be +# moved 1 hour backwards on the territory of the USSR excluding +# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan. +# +# Apparently there were last minute changes. Apparently Kazakh act No. 170 +# was one of such changes. +# +# https://ru.wikipedia.org/wiki/Декретное время +# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that +# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast) +# were to not move clocks and Uralsk oblast was to move clocks +# forward; on 1991-09-29 Kazakhstan was to move clocks backwards. +# (Probably there were changes even after that publication. There is an +# article claiming that Kaliningrad oblast decided on 1991-03-29 to not +# move clocks.) +# +# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while +# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06 +# to +04/+05. It's unclear how Kzyl-Orda oblast moved into the fifth +# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ... +# +# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan +# from 1992-01-13 No. 28 +# http://adilet.zan.kz/rus/docs/P920000028_ +# (text includes modification from the 1996 act) +# introduced new rules for calculation of time, mirroring Russian +# 1992-01-08 act. It specified that time would be calculated +# according to time belts plus extra hour ("decree time"), moved clocks +# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at +# 2:00, specified DST rules. It acknowledged that Kazakhstan was +# located in the fourth and the fifth time belts and specified the +# border between them to be located east of Kustanay and Aktyubinsk +# oblasts (notably including Turgai and Kzyl-Orda oblasts into the fifth +# time belt). +# +# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for +# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyrau and Kustanay oblasts; from +# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk) [*].... +# +# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan +# from 1992-03-27 No. 284 +# http://adilet.zan.kz/rus/docs/P920000284_ +# cancels extra hour ("decree time") for Uralsk and Kzyl-Orda oblasts +# since the last Sunday of March 1992, while keeping them in the fourth +# and the fifth time belts respectively. +# +# 3. Order of the Prime Minister of the Republic of Kazakhstan +# from 1994-09-23 No. 384 +# http://adilet.zan.kz/rus/docs/R940000384_ +# cancels the extra hour ("decree time") on the territory of Mangystau +# oblast since the last Sunday of September 1994 (saying that time on +# the territory would correspond to the third time belt as a +# result).... +# +# 4. Act of the Government of the Republic of Kazakhstan +# from 1996-05-08 No. 575 +# http://adilet.zan.kz/rus/docs/P960000575_ +# amends the 1992-01-13 act to end summer time in October instead +# of September, mirroring identical Russian change from 1996-04-23 act. +# +# 5. Act of the Government of the Republic of Kazakhstan +# from 1999-03-26 No. 305 +# http://adilet.zan.kz/rus/docs/P990000305_ +# cancels the extra hour ("decree time") for Atyrau oblast since the +# last Sunday of March 1999 while retaining the oblast in the fourth +# time belt. +# +# This means change from +05/+06 to +04/+05. +# +# There is no zone for Atyrau currently (listed under Asia/Aqtau in +# zone1970.tab).[*] +# +# 6. Act of the Government of the Republic of Kazakhstan +# from 2000-11-23 No. 1749 +# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000 +# replaces the previous five documents. +# +# The only changes I noticed are in definition of the border between the +# fourth and the fifth time belts. They account for changes in spelling +# and administrative division (splitting of Turgai oblast in 1997 +# probably changed time in territories incorporated into Kostanay oblast +# (including Arkalyk) from +06/+07 to +05/+06) and move Kyzylorda oblast +# from being in the fifth time belt and not using decree time into the +# fourth time belt (no change in practice).[*] +# +# 7. Act of the Government of the Republic of Kazakhstan +# from 2003-12-29 No. 1342 +# http://adilet.zan.kz/rus/docs/P030001342_ +# modified the 2000-11-23 act. No relevant changes, apparently. +# +# 8. Act of the Government of the Republic of Kazakhstan +# from 2004-07-20 No. 775 +# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004 +# modified the 2000-11-23 act to move Kostanay and Kyzylorda oblasts into +# the fifth time belt and add Aktobe oblast to the list of regions not +# using extra hour ("decree time"), leaving Kazakhstan with only 2 time +# zones (+04/+05 and +06/+07). The changes were to be implemented +# during DST transitions in 2004 and 2005 but the acts got radically +# amended before implementation happened. +# +# 9. Act of the Government of the Republic of Kazakhstan +# from 2004-09-15 No. 1059 +# http://adilet.zan.kz/rus/docs/P040001059_ +# modified the 2000-11-23 act to remove exceptions from the "decree time" +# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the +# 2004-07-20 act to implement changes for Atyrau, West Kazakhstan, +# Kostanay, Kyzylorda and Mangystau oblasts by not moving clocks +# during the 2014 transition to "winter" time. +# +# This means transition from +04/+05 to +05/+06 for Atyrau oblast (no +# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to +# +06/+07 for Kostanay oblast (Kostanay and Arkalyk, no zones currently) +# and Asia/Qyzylorda on 2004-10-31 at 3:00....[*] +# +# 10. Act of the Government of the Republic of Kazakhstan +# from 2005-03-15 No. 231 +# http://adilet.zan.kz/rus/docs/P050000231_ +# removes DST provisions from the 2000-11-23 act, removes most of the +# (already implemented) provisions from the 2004-07-20 and 2004-09-15 +# acts, comes into effect 10 days after official publication. +# The only practical effect seems to be the abolition of the summer +# time. +# +# Unamended version of the act of the Government of the Russian Federation +# No. 23 from 1992-01-08 [See 'europe' file for details]. +# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27 +# act was to be enacted on the last Sunday of March 1992. + +# From Paul Eggert (2016-04-15): +# The tables below should reflect Stepan Golosunov's remarks above, +# except for the items marked "[*]" which I haven't gotten to yet. +# It looks like we will need new zones Asia/Atyrau and Asia/Qostanay +# to handle changes from 1992 through 2004 that we did not previously +# know about. + # # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Almaty (formerly Alma-Ata), representing most locations in Kazakhstan +# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA, +# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ. Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata - 5:00 - ALMT 1930 Jun 21 # Alma-Ata Time - 6:00 RussiaAsia ALM%sT 1991 - 6:00 - ALMT 1992 - 6:00 RussiaAsia ALM%sT 2005 Mar 15 - 6:00 - ALMT -# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) + 5:00 - +05 1930 Jun 21 + 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s + 5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s + 6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s + 6:00 - +06 +# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY) Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2 - 4:00 - KIZT 1930 Jun 21 # Kizilorda Time - 5:00 - KIZT 1981 Apr 1 - 5:00 1:00 KIZST 1981 Oct 1 - 6:00 - KIZT 1982 Apr 1 - 5:00 RussiaAsia KIZ%sT 1991 - 5:00 - KIZT 1991 Dec 16 # independence - 5:00 - QYZT 1992 Jan 19 2:00 - 6:00 RussiaAsia QYZ%sT 2005 Mar 15 - 6:00 - QYZT -# Aqtobe (aka Aktobe, formerly Akt'ubinsk) + 4:00 - +04 1930 Jun 21 + 5:00 - +05 1981 Apr 1 + 5:00 1:00 +06 1981 Oct 1 + 6:00 - +06 1982 Apr 1 + 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s + 4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s + 5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s + 6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s + 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s + 6:00 - +06 +# Aqtobe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT) Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2 - 4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time - 5:00 - AKTT 1981 Apr 1 - 5:00 1:00 AKTST 1981 Oct 1 - 6:00 - AKTT 1982 Apr 1 - 5:00 RussiaAsia AKT%sT 1991 - 5:00 - AKTT 1991 Dec 16 # independence - 5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time - 5:00 - AQTT -# Mangghystau + 4:00 - +04 1930 Jun 21 + 5:00 - +05 1981 Apr 1 + 5:00 1:00 +06 1981 Oct 1 + 6:00 - +06 1982 Apr 1 + 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s + 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s + 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s + 5:00 - +05 +# Qostanay (KZ-KUS) + +# Mangghystau (KZ-MAN) # Aqtau was not founded until 1963, but it represents an inhabited region, # so include time stamps before 1963. Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 - 4:00 - FORT 1930 Jun 21 # Fort Shevchenko T - 5:00 - FORT 1963 - 5:00 - SHET 1981 Oct 1 # Shevchenko Time - 6:00 - SHET 1982 Apr 1 - 5:00 RussiaAsia SHE%sT 1991 - 5:00 - SHET 1991 Dec 16 # independence - 5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time - 4:00 RussiaAsia AQT%sT 2005 Mar 15 - 5:00 - AQTT -# West Kazakhstan + 4:00 - +04 1930 Jun 21 + 5:00 - +05 1963 + 5:00 - +05 1981 Oct 1 + 6:00 - +06 1982 Apr 1 + 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s + 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s + 5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s + 4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s + 5:00 - +05 + +# West Kazakhstan (KZ-ZAP) +# From Paul Eggert (2016-03-18): +# The 1989 transition is from USSR act No. 227 (1989-03-14). Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk - 4:00 - URAT 1930 Jun 21 # Ural'sk time - 5:00 - URAT 1981 Apr 1 - 5:00 1:00 URAST 1981 Oct 1 - 6:00 - URAT 1982 Apr 1 - 5:00 RussiaAsia URA%sT 1989 Mar 26 2:00 - 4:00 RussiaAsia URA%sT 1991 - 4:00 - URAT 1991 Dec 16 # independence - 4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time - 5:00 - ORAT + 4:00 - +04 1930 Jun 21 + 5:00 - +05 1981 Apr 1 + 5:00 1:00 +06 1981 Oct 1 + 6:00 - +06 1982 Apr 1 + 5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s + 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s + 5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s + 4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s + 5:00 - +05 # Kyrgyzstan (Kirgizstan) # Transitions through 1991 are from Shanks & Pottenger. # From Paul Eggert (2005-08-15): # According to an article dated today in the Kyrgyzstan Development Gateway -# <http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml> +# http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml # Kyrgyzstan is canceling the daylight saving time system. I take the article # to mean that they will leave their clocks at 6 hours ahead of UTC. # From Malik Abdugaliev (2005-09-21): @@ -1643,71 +1834,103 @@ Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 - 5:00 - FRUT 1930 Jun 21 # Frunze Time - 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s - 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence - 5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time - 6:00 - KGT + 5:00 - +05 1930 Jun 21 + 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s + 5:00 RussiaAsia +05/+06 1991 Aug 31 2:00 + 5:00 Kyrgyz +05/+06 2005 Aug 12 + 6:00 - +06 ############################################################################### # Korea (North and South) -# From Annie I. Bang (2006-07-10) in -# <http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp>: -# The Ministry of Commerce, Industry and Energy has already -# commissioned a research project [to reintroduce DST] and has said -# the system may begin as early as 2008.... Korea ran a daylight -# saving program from 1949-61 but stopped it during the 1950-53 Korean War. +# From Annie I. Bang (2006-07-10): +# http://www.koreaherald.com/view.php?ud=200607100012 +# Korea ran a daylight saving program from 1949-61 but stopped it +# during the 1950-53 Korean War. The system was temporarily enforced +# between 1987 and 1988 ... + +# From Sanghyuk Jung (2014-10-29): +# http://mm.icann.org/pipermail/tz/2014-October/021830.html +# According to the Korean Wikipedia +# http://ko.wikipedia.org/wiki/한국_표준시 +# [oldid=12896437 2014-09-04 08:03 UTC] +# DST in Republic of Korea was as follows.... And I checked old +# newspapers in Korean, all articles correspond with data in Wikipedia. +# For example, the article in 1948 (Korean Language) proved that DST +# started at June 1 in that year. For another example, the article in +# 1988 said that DST started at 2:00 AM in that year. -# From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule ROK 1960 only - May 15 0:00 1:00 D -Rule ROK 1960 only - Sep 13 0:00 0 S -Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D -Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S - -# From Paul Eggert (2014-07-01): -# The following entries are from Shanks & Pottenger, except that I -# guessed that time zone abbreviations through 1945 followed the same +Rule ROK 1948 only - Jun 1 0:00 1:00 D +Rule ROK 1948 only - Sep 13 0:00 0 S +Rule ROK 1949 only - Apr 3 0:00 1:00 D +Rule ROK 1949 1951 - Sep Sun>=8 0:00 0 S +Rule ROK 1950 only - Apr 1 0:00 1:00 D +Rule ROK 1951 only - May 6 0:00 1:00 D +Rule ROK 1955 only - May 5 0:00 1:00 D +Rule ROK 1955 only - Sep 9 0:00 0 S +Rule ROK 1956 only - May 20 0:00 1:00 D +Rule ROK 1956 only - Sep 30 0:00 0 S +Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D +Rule ROK 1957 1960 - Sep Sun>=18 0:00 0 S +Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D +Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S + +# From Paul Eggert (2016-08-23): +# The Korean Wikipedia entry gives the following sources for UT offsets: +# +# 1908: Official Journal Article No. 3994 (decree No. 5) +# 1912: Governor-General of Korea Official Gazette Issue No. 367 +# (Announcement No. 338) +# 1954: Presidential Decree No. 876 (1954-03-17) +# 1961: Law No. 676 (1961-08-07) +# +# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30 +# edition of the Korean Wikipedia entry.) +# +# I guessed that time zone abbreviations through 1945 followed the same # rules as discussed under Taiwan, with nominal switches from JST to KST # when the respective cities were taken over by the Allies after WWII. +# +# For Pyongyang, guess no changes from World War II until 2015, as we +# have no information otherwise. + +# From Steffen Thorsen (2015-08-07): +# According to many news sources, North Korea is going to change to +# the 8:30 time zone on August 15, one example: +# http://www.bbc.com/news/world-asia-33815049 +# +# From Paul Eggert (2015-08-15): +# Bells rang out midnight (00:00) Friday as part of the celebrations. See: +# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time' +# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html +# There is no common English-language abbreviation for this time zone. +# Use KST, as that's what we already use for 1954-1961 in ROK. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Seoul 8:27:52 - LMT 1890 - 8:30 - KST 1904 Dec - 9:00 - JCST 1928 - 8:30 - KST 1932 +Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1 + 8:30 - KST 1912 Jan 1 9:00 - JCST 1937 Oct 1 9:00 - JST 1945 Sep 8 9:00 - KST 1954 Mar 21 - 8:00 ROK K%sT 1961 Aug 10 - 8:30 - KST 1968 Oct + 8:30 ROK K%sT 1961 Aug 10 9:00 ROK K%sT -Zone Asia/Pyongyang 8:23:00 - LMT 1890 - 8:30 - KST 1904 Dec - 9:00 - JCST 1928 - 8:30 - KST 1932 +Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1 + 8:30 - KST 1912 Jan 1 9:00 - JCST 1937 Oct 1 9:00 - JST 1945 Aug 24 - 9:00 - KST 1954 Mar 21 - 8:00 - KST 1961 Aug 10 - 9:00 - KST + 9:00 - KST 2015 Aug 15 00:00 + 8:30 - KST ############################################################################### # Kuwait -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Kuwait 3:11:56 - LMT 1950 - 3:00 - AST +# See Asia/Riyadh. # Laos -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan - 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT? - 7:00 - ICT 1912 May - 8:00 - ICT 1931 May - 7:00 - ICT +# See Asia/Bangkok. + # Lebanon # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -1745,8 +1968,8 @@ Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer Rule NBorneo 1935 1941 - Dec 14 0:00 0 - # # peninsular Malaysia -# The data here are taken from Mok Ly Yng (2003-10-30) -# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>. +# taken from Mok Ly Yng (2003-10-30) +# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. @@ -1758,12 +1981,12 @@ Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1 7:30 - MALT 1982 Jan 1 8:00 - MYT # Malaysia Time # Sabah & Sarawak -# From Paul Eggert (2006-03-22): -# The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982 -# transition dates are from Mok Ly Yng. +# From Paul Eggert (2014-08-12): +# The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945 +# and 1982 transition dates are from Mok Ly Yng. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Kuching 7:21:20 - LMT 1926 Mar - 7:30 - BORT 1933 # Borneo Time + 7:30 - BORT 1933 # Borneo Time 8:00 NBorneo BOR%sT 1942 Feb 16 9:00 - JST 1945 Sep 12 8:00 - BORT 1982 Jan 1 @@ -1771,9 +1994,9 @@ Zone Asia/Kuching 7:21:20 - LMT 1926 Mar # Maldives # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Indian/Maldives 4:54:00 - LMT 1880 # Male - 4:54:00 - MMT 1960 # Male Mean Time - 5:00 - MVT # Maldives Time +Zone Indian/Maldives 4:54:00 - LMT 1880 # Male + 4:54:00 - MMT 1960 # Male Mean Time + 5:00 - MVT # Maldives Time # Mongolia @@ -1831,11 +2054,11 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # Male # Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says # there is only one time zone and that DST is observed, citing Microsoft # Windows XP as the source. Risto Nykänen (2005-05-16) reports that -# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST. +# travelmongolia.org says there are two time zones (UT +07, +08) with no DST. # Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in # Washington, DC says there are two time zones, with DST observed. # He also found -# <http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&> +# http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1& # which also says that there is DST, and which has a comment by "Toddius" # (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones. # The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT @@ -1879,6 +2102,13 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # Male # was at the start of 2008-03-31 (the day of Steffen Thorsen's report); # this is almost surely wrong. +# From Ganbold Tsagaankhuu (2015-03-10): +# It seems like yesterday Mongolian Government meeting has concluded to use +# daylight saving time in Mongolia.... Starting at 2:00AM of last Saturday of +# March 2015, daylight saving time starts. And 00:00AM of last Saturday of +# September daylight saving time ends. Source: +# http://zasag.mn/news/view/8969 + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S Rule Mongol 1983 only - Oct 1 0:00 0 - @@ -1899,17 +2129,19 @@ Rule Mongol 1984 1998 - Sep lastSun 0:00 0 - Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S Rule Mongol 2001 2006 - Sep lastSat 2:00 0 - Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S +Rule Mongol 2015 max - Mar lastSat 2:00 1:00 S +Rule Mongol 2015 max - Sep lastSat 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta Zone Asia/Hovd 6:06:36 - LMT 1905 Aug - 6:00 - HOVT 1978 # Hovd Time + 6:00 - HOVT 1978 # Hovd Time 7:00 Mongol HOV%sT # Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug - 7:00 - ULAT 1978 # Ulaanbaatar Time + 7:00 - ULAT 1978 # Ulaanbaatar Time 8:00 Mongol ULA%sT -# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan, +# Choibalsan, a.k.a. Bajan Tümen, Bajan Tumen, Chojbalsan, # Choybalsan, Sanbejse, Tchoibalsan Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug 7:00 - ULAT 1978 @@ -1924,12 +2156,7 @@ Zone Asia/Kathmandu 5:41:16 - LMT 1920 5:45 - NPT # Nepal Time # Oman - -# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory. - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Muscat 3:54:24 - LMT 1920 - 4:00 - GST +# See Asia/Dubai. # Pakistan @@ -1973,10 +2200,9 @@ Zone Asia/Muscat 3:54:24 - LMT 1920 # Here is an article that Pakistan plan to introduce Daylight Saving Time # on June 1, 2008 for 3 months. # -# "... The federal cabinet on Wednesday announced a new conservation plan to help -# reduce load shedding by approving the closure of commercial centres at 9pm and -# moving clocks forward by one hour for the next three months. -# ...." +# "... The federal cabinet on Wednesday announced a new conservation plan to +# help reduce load shedding by approving the closure of commercial centres at +# 9pm and moving clocks forward by one hour for the next three months. ...." # # http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html # http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4 @@ -2023,19 +2249,14 @@ Zone Asia/Muscat 3:54:24 - LMT 1920 # From Alexander Krivenyshev (2009-09-28): # According to Associated Press Of Pakistan, it is confirmed that -# Pakistan clocks across the country would be turned back by an hour from October -# 1, 2009. +# Pakistan clocks across the country would be turned back by an hour from +# October 1, 2009. # # "Clocks to go back one hour from 1 Oct" # http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2 # http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm - -# From Steffen Thorsen (2009-09-29): -# Alexander Krivenyshev wrote: -# > According to Associated Press Of Pakistan, it is confirmed that -# > Pakistan clocks across the country would be turned back by an hour from October -# > 1, 2009. # +# From Steffen Thorsen (2009-09-29): # Now they seem to have changed their mind, November 1 is the new date: # http://www.thenews.com.pk/top_story_detail.asp?Id=24742 # "The country's clocks will be reversed by one hour on November 1. @@ -2073,12 +2294,11 @@ Zone Asia/Muscat 3:54:24 - LMT 1920 # http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S -Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 - +Rule Pakistan 2002 only - Apr Sun>=2 0:00 1:00 S +Rule Pakistan 2002 only - Oct Sun>=2 0:00 0 - Rule Pakistan 2008 only - Jun 1 0:00 1:00 S -Rule Pakistan 2008 only - Nov 1 0:00 0 - +Rule Pakistan 2008 2009 - Nov 1 0:00 0 - Rule Pakistan 2009 only - Apr 15 0:00 1:00 S -Rule Pakistan 2009 only - Nov 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Karachi 4:28:12 - LMT 1907 @@ -2153,7 +2373,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907 # From Paul Eggert (1999-09-20): # Daoud Kuttab writes in Holiday havoc -# <http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html> +# http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html # (Jerusalem Post, 1999-04-22) that # the Palestinian National Authority changed to DST on 1999-04-15. # I vaguely recall that they switch back in October (sorry, forgot the source). @@ -2329,13 +2549,38 @@ Zone Asia/Karachi 4:28:12 - LMT 1907 # official source...: # http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252 -# From Paul Eggert (2013-09-24): -# For future dates, guess the last Thursday in March at 24:00 through -# the first Friday on or after September 21 at 00:00. This is consistent with -# the predictions in today's editions of the following URLs, -# which are for Gaza and Hebron respectively: -# http://www.timeanddate.com/worldclock/timezone.html?n=702 -# http://www.timeanddate.com/worldclock/timezone.html?n=2364 +# From Steffen Thorsen (2015-03-03): +# Sources such as http://www.alquds.com/news/article/view/id/548257 +# and http://www.raya.ps/ar/news/890705.html say Palestine areas will +# start DST on 2015-03-28 00:00 which is one day later than expected. +# +# From Paul Eggert (2015-03-03): +# http://www.timeanddate.com/time/change/west-bank/ramallah?year=2014 +# says that the fall 2014 transition was Oct 23 at 24:00. + +# From Hannah Kreitem (2016-03-09): +# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728 +# [Google translation]: "The Council also decided to start daylight +# saving in Palestine as of one o'clock on Saturday morning, +# 2016-03-26, to provide the clock 60 minutes ahead." +# +# From Paul Eggert (2016-03-12): +# Predict spring transitions on March's last Saturday at 01:00 from now on. + +# From Sharef Mustafa (2016-10-19): +# [T]he Palestinian cabinet decision (Mar 8th 2016) published on +# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf +# states that summer time will end on Oct 29th at 01:00. +# +# From Tim Parenti (2016-10-19): +# Predict fall transitions on October's last Saturday at 01:00 from now on. +# This is consistent with the 2016 transition as well as our spring +# predictions. +# +# From Paul Eggert (2016-10-19): +# It's also consistent with predictions in the following URLs today: +# http://www.timeanddate.com/time/change/gaza-strip/gaza +# http://www.timeanddate.com/time/change/west-bank/hebron # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule EgyptAsia 1957 only - May 10 0:00 1:00 S @@ -2361,9 +2606,13 @@ Rule Palestine 2011 only - Apr 1 0:01 1:00 S Rule Palestine 2011 only - Aug 1 0:00 0 - Rule Palestine 2011 only - Aug 30 0:00 1:00 S Rule Palestine 2011 only - Sep 30 0:00 0 - -Rule Palestine 2012 max - Mar lastThu 24:00 1:00 S +Rule Palestine 2012 2014 - Mar lastThu 24:00 1:00 S Rule Palestine 2012 only - Sep 21 1:00 0 - -Rule Palestine 2013 max - Sep Fri>=21 0:00 0 - +Rule Palestine 2013 only - Sep Fri>=21 0:00 0 - +Rule Palestine 2014 2015 - Oct Fri>=21 0:00 0 - +Rule Palestine 2015 only - Mar lastFri 24:00 1:00 S +Rule Palestine 2016 max - Mar lastSat 1:00 1:00 S +Rule Palestine 2016 max - Oct lastSat 1:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Gaza 2:17:52 - LMT 1900 Oct @@ -2371,10 +2620,10 @@ Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2:00 EgyptAsia EE%sT 1967 Jun 5 2:00 Zion I%sT 1996 2:00 Jordan EE%sT 1999 - 2:00 Palestine EE%sT 2008 Aug 29 0:00 + 2:00 Palestine EE%sT 2008 Aug 29 0:00 2:00 - EET 2008 Sep 2:00 Palestine EE%sT 2010 - 2:00 - EET 2010 Mar 27 0:01 + 2:00 - EET 2010 Mar 27 0:01 2:00 Palestine EE%sT 2011 Aug 1 2:00 - EET 2012 2:00 Palestine EE%sT @@ -2394,22 +2643,23 @@ Zone Asia/Hebron 2:20:23 - LMT 1900 Oct # Philippines, issued a proclamation announcing that 1844-12-30 was to # be immediately followed by 1845-01-01; see R.H. van Gent's # History of the International Date Line -# <http://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm>. -# The rest of the data are from Shanks & Pottenger. +# http://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm +# The rest of the data entries are from Shanks & Pottenger. -# From Paul Eggert (2006-04-25): -# Tomorrow's Manila Standard reports that the Philippines Department of -# Trade and Industry is considering adopting DST this June when the -# rainy season begins. See -# <http://www.manilastandardtoday.com/?page=politics02_april26_2006>. -# For now, we'll ignore this, since it's not definite and we lack details. -# # From Jesper Nørgaard Welen (2006-04-26): # ... claims that Philippines had DST last time in 1990: # http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/ # [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires, # but no details] +# From Paul Eggert (2014-08-14): +# The following source says DST may be instituted November-January and again +# March-June, but this is not definite. It also says DST was last proclaimed +# during the Ramos administration (1992-1998); but again, no details. +# Carcamo D. PNoy urged to declare use of daylight saving time. +# Philippine Star 2014-08-05 +# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Phil 1936 only - Nov 1 0:00 1:00 S Rule Phil 1937 only - Feb 1 0:00 0 - @@ -2426,9 +2676,10 @@ Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 # Qatar # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha +Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha 4:00 - GST 1972 Jun 3:00 - AST +Link Asia/Qatar Asia/Bahrain # Saudi Arabia # @@ -2449,16 +2700,18 @@ Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha # earlier date. # # Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two -# time zones; the other zone, at UTC+4, was in the far eastern part of +# time zones; the other zone, at UT +04, was in the far eastern part of # the country. Ignore this, as it's before our 1970 cutoff. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14 3:00 - AST +Link Asia/Riyadh Asia/Aden # Yemen +Link Asia/Riyadh Asia/Kuwait # Singapore -# The data here are taken from Mok Ly Yng (2003-10-30) -# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>. +# taken from Mok Ly Yng (2003-10-30) +# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. @@ -2501,7 +2754,7 @@ Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 # at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006). # From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in: -# <http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML> +# http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML # [The Tamil Tigers] never accepted the original 1996 time change and simply # kept their clocks set five and a half hours ahead of Greenwich Mean # Time (GMT), in line with neighbor India. @@ -2509,45 +2762,31 @@ Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 # People who live in regions under Tamil control can use [TZ='Asia/Kolkata'], # as that zone has agreed with the Tamil areas since our cutoff date of 1970. -# From K Sethu (2006-04-25): -# I think the abbreviation LKT originated from the world of computers at -# the time of or subsequent to the time zone changes by SL Government -# twice in 1996 and probably SL Government or its standardization -# agencies never declared an abbreviation as a national standard. -# -# I recollect before the recent change the government announcements -# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka -# Time and no mention was made about the abbreviation. -# -# If we look at Sri Lanka Department of Government's "Official News -# Website of Sri Lanka" ... http://www.news.lk/ we can see that they -# use SLT as abbreviation in time stamp at the beginning of each news -# item.... -# -# Within Sri Lanka I think LKT is well known among computer users and -# administrators. In my opinion SLT may not be a good choice because the -# nation's largest telcom / internet operator Sri Lanka Telcom is well -# known by that abbreviation - simply as SLT (there IP domains are -# slt.lk and sltnet.lk). -# -# But if indeed our government has adopted SLT as standard abbreviation -# (that we have not known so far) then it is better that it be used for -# all computers. - -# From Paul Eggert (2006-04-25): -# One possibility is that we wait for a bit for the dust to settle down -# and then see what people actually say in practice. +# From Sadika Sumanapala (2016-10-19): +# According to http://www.sltime.org (maintained by Measurement Units, +# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka +# standard time is SLST. +# +# From Paul Eggert (2016-10-18): +# "SLST" seems to be reasonably recent and rarely-used outside time +# zone nerd sources. I searched Google News and found three uses of +# it in the International Business Times of India in February and +# March of this year when discussing cricket match times, but nothing +# since then (though there has been a lot of cricket) and nothing in +# other English-language news sources. Our old abbreviation "LKT" is +# even worse. For now, let's use a numeric abbreviation; we can +# switch to "SLST" if it catches on. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Colombo 5:19:24 - LMT 1880 - 5:19:32 - MMT 1906 # Moratuwa Mean Time - 5:30 - IST 1942 Jan 5 - 5:30 0:30 IHST 1942 Sep - 5:30 1:00 IST 1945 Oct 16 2:00 - 5:30 - IST 1996 May 25 0:00 - 6:30 - LKT 1996 Oct 26 0:30 - 6:00 - LKT 2006 Apr 15 0:30 - 5:30 - IST + 5:19:32 - MMT 1906 # Moratuwa Mean Time + 5:30 - +0530 1942 Jan 5 + 5:30 0:30 +0530/+06 1942 Sep + 5:30 1:00 +0530/+0630 1945 Oct 16 2:00 + 5:30 - +0530 1996 May 25 0:00 + 6:30 - +0630 1996 Oct 26 0:30 + 6:00 - +06 2006 Apr 15 0:30 + 5:30 - +0530 # Syria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -2622,8 +2861,7 @@ Rule Syria 2007 only - Nov Fri>=1 0:00 0 - # From Stephen Colebourne (2008-03-17): # For everyone's info, I saw an IATA time zone change for [Syria] for -# this month (March 2008) in the last day or so...This is the data IATA -# are now using: +# this month (March 2008) in the last day or so.... # Country Time Standard --- DST Start --- --- DST End --- DST # Name Zone Variation Time Date Time Date # Variation @@ -2710,82 +2948,120 @@ Rule Syria 2012 max - Mar lastFri 0:00 1:00 S Rule Syria 2009 max - Oct lastFri 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq +Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq 2:00 Syria EE%sT # Tajikistan # From Shanks & Pottenger. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 - 5:00 - DUST 1930 Jun 21 # Dushanbe Time - 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s - 5:00 1:00 DUSST 1991 Sep 9 2:00s - 5:00 - TJT # Tajikistan Time + 5:00 - +05 1930 Jun 21 + 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s + 5:00 1:00 +05/+06 1991 Sep 9 2:00s + 5:00 - +05 # Thailand # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bangkok 6:42:04 - LMT 1880 6:42:04 - BMT 1920 Apr # Bangkok Mean Time 7:00 - ICT +Link Asia/Bangkok Asia/Phnom_Penh # Cambodia +Link Asia/Bangkok Asia/Vientiane # Laos # Turkmenistan # From Shanks & Pottenger. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad - 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time - 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00 - 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence - 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00 - 5:00 - TMT + 4:00 - +04 1930 Jun 21 + 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00 + 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00 + 5:00 - +05 # United Arab Emirates # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dubai 3:41:12 - LMT 1920 4:00 - GST +Link Asia/Dubai Asia/Muscat # Oman # Uzbekistan +# Byalokoz 1919 says Uzbekistan was 4:27:53. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2 - 4:00 - SAMT 1930 Jun 21 # Samarkand Time - 5:00 - SAMT 1981 Apr 1 - 5:00 1:00 SAMST 1981 Oct 1 - 6:00 - TAST 1982 Apr 1 # Tashkent Time - 5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence - 5:00 RussiaAsia UZ%sT 1992 - 5:00 - UZT +Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2 + 4:00 - +04 1930 Jun 21 + 5:00 - +05 1981 Apr 1 + 5:00 1:00 +06 1981 Oct 1 + 6:00 - +06 1982 Apr 1 + 5:00 RussiaAsia +05/+06 1992 + 5:00 - +05 # Milne says Tashkent was 4:37:10.8; round to nearest. Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2 - 5:00 - TAST 1930 Jun 21 # Tashkent Time - 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00 - 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence - 5:00 RussiaAsia UZ%sT 1992 - 5:00 - UZT + 5:00 - +05 1930 Jun 21 + 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00 + 5:00 RussiaAsia +05/+06 1992 + 5:00 - +05 # Vietnam -# From Paul Eggert (2013-02-21): +# From Paul Eggert (2014-10-04): # Milne gives 7:16:56 for the meridian of Saigon in 1899, as being # used in Lower Laos, Cambodia, and Annam. But this is quite a ways # from Saigon's location. For now, ignore this and stick with Shanks -# and Pottenger. +# and Pottenger for LMT before 1906. # From Arthur David Olson (2008-03-18): # The English-language name of Vietnam's most populous city is "Ho Chi Minh # City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters. -# From Shanks & Pottenger: +# From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân: +# Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)" +# (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50, +# is quoted verbatim in: +# http://www.thoigian.com.vn/?mPage=P80D01 +# is translated by Brian Inglis in: +# http://mm.icann.org/pipermail/tz/2014-October/021654.html +# and is the basis for the information below. +# +# The 1906 transition was effective July 1 and standardized Indochina to +# Phù Liễn Observatory, legally 104 deg. 17'17" east of Paris. +# It's unclear whether this meant legal Paris Mean Time (00:09:21) or +# the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333... +# and the latter 07:06:29.333... so either way it rounds to 07:06:30, +# which is used below even though the modern-day Phù Liễn Observatory +# is closer to 07:06:31. Abbreviate Phù Liễn Mean Time as PLMT. +# +# The following transitions occurred in Indochina in general (before 1954) +# and in South Vietnam in particular (after 1954): +# To 07:00 on 1911-05-01. +# To 08:00 on 1942-12-31 at 23:00. +# To 09:00 in 1945-03-14 at 23:00. +# To 07:00 on 1945-09-02 in Vietnam. +# To 08:00 on 1947-04-01 in French-controlled Indochina. +# To 07:00 on 1955-07-01 in South Vietnam. +# To 08:00 on 1959-12-31 at 23:00 in South Vietnam. +# To 07:00 on 1975-06-13 in South Vietnam. +# +# Trần cites the following sources; it's unclear which supplied the info above. +# +# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội, +# No. 9, Paris, February 1982. +# +# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)", +# NXB Thống kê, Hanoi, 2000. +# +# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu", +# NXB Thuận Hoá, Huế, 1995. + # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9 - 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT? - 7:00 - ICT 1912 May - 8:00 - ICT 1931 May +Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1 + 7:06:30 - PLMT 1911 May 1 + 7:00 - ICT 1942 Dec 31 23:00 + 8:00 - IDT 1945 Mar 14 23:00 + 9:00 - JST 1945 Sep 2 + 7:00 - ICT 1947 Apr 1 + 8:00 - IDT 1955 Jul 1 + 7:00 - ICT 1959 Dec 31 23:00 + 8:00 - IDT 1975 Jun 13 7:00 - ICT # Yemen - -# Milne says 2:59:54 was the meridian of the saluting battery at Aden, -# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia. - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Aden 2:59:54 - LMT 1950 - 3:00 - AST +# See Asia/Riyadh. diff --git a/contrib/tzdata/australasia b/contrib/tzdata/australasia index 4911e8d..0bca53e 100644 --- a/contrib/tzdata/australasia +++ b/contrib/tzdata/australasia @@ -60,6 +60,14 @@ Zone Australia/Eucla 8:35:28 - LMT 1895 Dec # Hamilton is the largest, but there is also a Hamilton in Victoria, # so use Lindeman. # +# From J William Piggott (2016-02-20): +# There is no location named Holiday Islands in Queensland Australia; holiday +# islands is a colloquial term used globally. Hayman and Lindeman are at the +# north and south extremes of the Whitsunday Islands archipelago, and +# Hamilton is in between; it is reasonable to believe that this time zone +# applies to all of the Whitsundays. +# http://www.australia.gov.au/about-australia/australian-story/austn-islands +# # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule AQ 1971 only - Oct lastSun 2:00s 1:00 D Rule AQ 1972 only - Feb lastSun 2:00s 0 S @@ -101,7 +109,7 @@ Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb # Tasmania # # From Paul Eggert (2005-08-16): -# <http://www.bom.gov.au/climate/averages/tables/dst_times.shtml> +# http://www.bom.gov.au/climate/averages/tables/dst_times.shtml # says King Island didn't observe DST from WWII until late 1971. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -126,12 +134,12 @@ Rule AT 2007 only - Mar lastSun 2:00s 0 S Rule AT 2008 max - Apr Sun>=1 2:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Hobart 9:49:16 - LMT 1895 Sep - 10:00 - AEST 1916 Oct 1 2:00 + 10:00 - AEST 1916 Oct 1 2:00 10:00 1:00 AEDT 1917 Feb 10:00 Aus AE%sT 1967 10:00 AT AE%sT Zone Australia/Currie 9:35:28 - LMT 1895 Sep - 10:00 - AEST 1916 Oct 1 2:00 + 10:00 - AEST 1916 Oct 1 2:00 10:00 1:00 AEDT 1917 Feb 10:00 Aus AE%sT 1971 Jul 10:00 AT AE%sT @@ -220,8 +228,8 @@ Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb # Permanent occupation (scientific station) 1911-1915 and since 25 March 1948; # sealing and penguin oil station operated Nov 1899 to Apr 1919. See the # Tasmania Parks & Wildlife Service history of sealing at Macquarie Island -# <http://www.parks.tas.gov.au/index.aspx?base=1828> -# <http://www.parks.tas.gov.au/index.aspx?base=1831>. +# http://www.parks.tas.gov.au/index.aspx?base=1828 +# http://www.parks.tas.gov.au/index.aspx?base=1831 # Guess that it was like Australia/Hobart while inhabited before 2010. # # From Steffen Thorsen (2010-03-10): @@ -235,13 +243,13 @@ Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb # will produce a binary file with an [A]EST-type as the first 32-bit type; # this is required for correct handling of times before 1916 by # pre-2013 versions of localtime. -Zone Antarctica/Macquarie 0 - zzz 1899 Nov - 10:00 - AEST 1916 Oct 1 2:00 +Zone Antarctica/Macquarie 0 - -00 1899 Nov + 10:00 - AEST 1916 Oct 1 2:00 10:00 1:00 AEDT 1917 Feb - 10:00 Aus AE%sT 1919 Apr 1 0:00s - 0 - zzz 1948 Mar 25 + 10:00 Aus AE%sT 1919 Apr 1 0:00s + 0 - -00 1948 Mar 25 10:00 Aus AE%sT 1967 - 10:00 AT AE%sT 2010 Apr 4 3:00 + 10:00 AT AE%sT 2010 Apr 4 3:00 11:00 - MIST # Macquarie I Standard Time # Christmas @@ -331,31 +339,51 @@ Zone Indian/Cocos 6:27:40 - LMT 1900 # Fiji will end DST on 2014-01-19 02:00: # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-%281%29.aspx -# From Paul Eggert (2014-01-10): -# For now, guess that Fiji springs forward the Sunday before the fourth -# Monday in October, and springs back the penultimate Sunday in January. -# This is ad hoc, but matches recent practice. +# From Ken Rylander (2014-10-20): +# DST will start Nov. 2 this year. +# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-NOVEMBER-2ND.aspx + +# From a government order dated 2015-08-26 and published as Legal Notice No. 77 +# in the Government of Fiji Gazette Supplement No. 24 (2015-08-28), +# via Ken Rylander (2015-09-02): +# the daylight saving period is 1 hour in advance of the standard time +# commencing at 2.00 am on Sunday 1st November, 2015 and ending at +# 3.00 am on Sunday 17th January, 2016. + +# From Raymond Kumar (2016-10-04): +# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-6th-NOVEMBER,-2016.aspx +# "Fiji's daylight savings will begin on Sunday, 6 November 2016, when +# clocks go forward an hour at 2am to 3am.... Daylight Saving will +# end at 3.00am on Sunday 15th January 2017." + +# From Paul Eggert (2016-10-03): +# For now, guess DST from 02:00 the first Sunday in November to +# 03:00 the third Sunday in January. Although ad hoc, it matches +# transitions since late 2014 and seems more likely to match future +# practice than guessing no DST. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 S Rule Fiji 1999 2000 - Feb lastSun 3:00 0 - Rule Fiji 2009 only - Nov 29 2:00 1:00 S Rule Fiji 2010 only - Mar lastSun 3:00 0 - -Rule Fiji 2010 max - Oct Sun>=21 2:00 1:00 S +Rule Fiji 2010 2013 - Oct Sun>=21 2:00 1:00 S Rule Fiji 2011 only - Mar Sun>=1 3:00 0 - Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 - -Rule Fiji 2014 max - Jan Sun>=18 2:00 0 - +Rule Fiji 2014 only - Jan Sun>=18 2:00 0 - +Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 S +Rule Fiji 2015 max - Jan Sun>=15 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva +Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva 12:00 Fiji FJ%sT # Fiji Time # French Polynesia # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea +Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea -9:00 - GAMT # Gambier Time Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct -9:30 - MART # Marquesas Time -Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete +Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete -10:00 - TAHT # Tahiti Time # Clipperton (near North America) is administered from French Polynesia; # it is uninhabited. @@ -363,14 +391,15 @@ Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete # Guam # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31 - 9:39:00 - LMT 1901 # Agana - 10:00 - GST 2000 Dec 23 # Guam + 9:39:00 - LMT 1901 # Agana + 10:00 - GST 2000 Dec 23 # Guam 10:00 - ChST # Chamorro Standard Time +Link Pacific/Guam Pacific/Saipan # N Mariana Is # Kiribati # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki - 12:00 - GILT # Gilbert Is Time +Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki + 12:00 - GILT # Gilbert Is Time Zone Pacific/Enderbury -11:24:20 - LMT 1901 -12:00 - PHOT 1979 Oct # Phoenix Is Time -11:00 - PHOT 1995 @@ -381,12 +410,7 @@ Zone Pacific/Kiritimati -10:29:20 - LMT 1901 14:00 - LINT # N Mariana Is -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31 - 9:43:00 - LMT 1901 - 9:00 - MPT 1969 Oct # N Mariana Is Time - 10:00 - MPT 2000 Dec 23 - 10:00 - ChST # Chamorro Standard Time +# See Pacific/Guam. # Marshall Is # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -395,24 +419,24 @@ Zone Pacific/Majuro 11:24:48 - LMT 1901 12:00 - MHT Zone Pacific/Kwajalein 11:09:20 - LMT 1901 11:00 - MHT 1969 Oct - -12:00 - KWAT 1993 Aug 20 # Kwajalein Time + -12:00 - KWAT 1993 Aug 20 # Kwajalein Time 12:00 - MHT # Micronesia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Chuuk 10:07:08 - LMT 1901 - 10:00 - CHUT # Chuuk Time -Zone Pacific/Pohnpei 10:32:52 - LMT 1901 # Kolonia - 11:00 - PONT # Pohnpei Time + 10:00 - CHUT # Chuuk Time +Zone Pacific/Pohnpei 10:32:52 - LMT 1901 # Kolonia + 11:00 - PONT # Pohnpei Time Zone Pacific/Kosrae 10:51:56 - LMT 1901 - 11:00 - KOST 1969 Oct # Kosrae Time + 11:00 - KOST 1969 Oct # Kosrae Time 12:00 - KOST 1999 11:00 - KOST # Nauru # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Nauru 11:07:40 - LMT 1921 Jan 15 # Uaobe - 11:30 - NRT 1942 Mar 15 # Nauru Time +Zone Pacific/Nauru 11:07:40 - LMT 1921 Jan 15 # Uaobe + 11:30 - NRT 1942 Mar 15 # Nauru Time 9:00 - JST 1944 Aug 15 11:30 - NRT 1979 May 12:00 - NRT @@ -489,8 +513,8 @@ Rule Cook 1978 only - Nov 12 0:00 0:30 HS Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 - Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 HS # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua - -10:30 - CKT 1978 Nov 12 # Cook Is Time +Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua + -10:30 - CKT 1978 Nov 12 # Cook Is Time -10:00 Cook CK%sT ############################################################################### @@ -498,40 +522,68 @@ Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua # Niue # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Niue -11:19:40 - LMT 1901 # Alofi - -11:20 - NUT 1951 # Niue Time - -11:30 - NUT 1978 Oct 1 +Zone Pacific/Niue -11:19:40 - LMT 1901 # Alofi + -11:20 - NUT 1951 # Niue Time + -11:30 - NUT 1978 Oct 1 -11:00 - NUT # Norfolk # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston - 11:12 - NMT 1951 # Norfolk Mean Time - 11:30 - NFT # Norfolk Time +Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston + 11:12 - NMT 1951 # Norfolk Mean Time + 11:30 - NFT 1974 Oct 27 02:00 # Norfolk T. + 11:30 1:00 NFST 1975 Mar 2 02:00 + 11:30 - NFT 2015 Oct 4 02:00 + 11:00 - NFT # Palau (Belau) # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Palau 8:57:56 - LMT 1901 # Koror +Zone Pacific/Palau 8:57:56 - LMT 1901 # Koror 9:00 - PWT # Palau Time # Papua New Guinea # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Port_Moresby 9:48:40 - LMT 1880 - 9:48:32 - PMMT 1895 # Port Moresby Mean Time - 10:00 - PGT # Papua New Guinea Time + 9:48:32 - PMMT 1895 # Port Moresby Mean Time + 10:00 - PGT # Papua New Guinea Time +# +# From Paul Eggert (2014-10-13): +# Base the Bougainville entry on the Arawa-Kieta region, which appears to have +# the most people even though it was devastated in the Bougainville Civil War. +# +# Although Shanks gives 1942-03-15 / 1943-11-01 for UT +09, these dates +# are apparently rough guesswork from the starts of military campaigns. +# The World War II entries below are instead based on Arawa-Kieta. +# The Japanese occupied Kieta in July 1942, +# according to the Pacific War Online Encyclopedia +# http://pwencycl.kgbudge.com/B/o/Bougainville.htm +# and seem to have controlled it until their 1945-08-21 surrender. +# +# The Autonomous Region of Bougainville switched from UT +10 to +11 +# on 2014-12-28 at 02:00. They call +11 "Bougainville Standard Time"; +# abbreviate this as BST. See: +# http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/ +# +Zone Pacific/Bougainville 10:22:16 - LMT 1880 + 9:48:32 - PMMT 1895 + 10:00 - PGT 1942 Jul + 9:00 - JST 1945 Aug 21 + 10:00 - PGT 2014 Dec 28 2:00 + 11:00 - BST # Pitcairn # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown - -8:30 - PNT 1998 Apr 27 00:00 +Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown + -8:30 - PNT 1998 Apr 27 0:00 -8:00 - PST # Pitcairn Standard Time # American Samoa Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5 -11:22:48 - LMT 1911 - -11:00 - NST 1967 Apr # N=Nome - -11:00 - BST 1983 Nov 30 # B=Bering - -11:00 - SST # S=Samoa + -11:00 - NST 1967 Apr # N=Nome + -11:00 - BST 1983 Nov 30 # B=Bering + -11:00 - SST # S=Samoa +Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands # Samoa (formerly and also known as Western Samoa) @@ -574,7 +626,7 @@ Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5 # From Paul Eggert (2014-06-27): # The International Date Line Act 2011 # http://www.parliament.gov.ws/images/ACTS/International_Date_Line_Act__2011_-_Eng.pdf -# changed Samoa from UTC-11 to UTC+13, effective "12 o'clock midnight, on +# changed Samoa from UT -11 to +13, effective "12 o'clock midnight, on # Thursday 29th December 2011". The International Date Line was adjusted # accordingly. @@ -617,7 +669,7 @@ Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 # Solomon Is # excludes Bougainville, for which see Papua New Guinea # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara +Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara 11:00 - SBT # Solomon Is Time # Tokelau Is @@ -641,7 +693,7 @@ Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Fakaofo -11:24:56 - LMT 1901 - -11:00 - TKT 2011 Dec 30 # Tokelau Time + -11:00 - TKT 2011 Dec 30 # Tokelau Time 13:00 - TKT # Tonga @@ -650,11 +702,13 @@ Rule Tonga 1999 only - Oct 7 2:00s 1:00 S Rule Tonga 2000 only - Mar 19 2:00s 0 - Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 S Rule Tonga 2001 2002 - Jan lastSun 2:00 0 - +Rule Tonga 2016 max - Nov Sun>=1 2:00 1:00 S +Rule Tonga 2017 max - Jan Sun>=15 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Tongatapu 12:19:20 - LMT 1901 - 12:20 - TOT 1941 # Tonga Time - 13:00 - TOT 1999 - 13:00 Tonga TO%sT + 12:20 - +1220 1941 + 13:00 - +13 1999 + 13:00 Tonga +13/+14 # Tuvalu # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -669,7 +723,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901 # 1886-1891; Baker was similar but exact dates are not known. # Inhabited by civilians 1935-1942; U.S. military bases 1943-1944; # uninhabited thereafter. -# Howland observed Hawaii Standard Time (UT-10:30) in 1937; +# Howland observed Hawaii Standard Time (UT -10:30) in 1937; # see page 206 of Elgen M. Long and Marie K. Long, # Amelia Earhart: the Mystery Solved, Simon & Schuster (2000). # So most likely Howland and Baker observed Hawaii Time from 1935 @@ -701,8 +755,8 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901 # time from Operation Newsreel (Hardtack I/Teak shot, 1958-08-01) to the last # Operation Fishbowl shot (Tightrope, 1962-11-04).... [See] Herman Hoerlin, # "The United States High-Altitude Test Experience: A Review Emphasizing the -# Impact on the Environment", Los Alamos LA-6405, Oct 1976 -# <http://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf>. +# Impact on the Environment", Los Alamos LA-6405, Oct 1976. +# http://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf # See the table on page 4 where he lists GMT and local times for the tests; a # footnote for the JI tests reads that local time is "JI time = Hawaii Time # Minus One Hour". @@ -713,23 +767,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901 # uninhabited # Midway -# -# From Mark Brader (2005-01-23): -# [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies, -# published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3] -# reproduced a Pan American Airways timeables from 1936, for their weekly -# "Orient Express" flights between San Francisco and Manila, and connecting -# flights to Chicago and the US East Coast. As it uses some time zone -# designations that I've never seen before:.... -# Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun. -# " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A " -# -Zone Pacific/Midway -11:49:28 - LMT 1901 - -11:00 - NST 1956 Jun 3 - -11:00 1:00 NDT 1956 Sep 2 - -11:00 - NST 1967 Apr # N=Nome - -11:00 - BST 1983 Nov 30 # B=Bering - -11:00 - SST # S=Samoa +# See Pacific/Pago_Pago. # Palmyra # uninhabited since World War II; was probably like Pacific/Kiritimati @@ -749,7 +787,7 @@ Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 S Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 - Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila +Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila 11:00 Vanuatu VU%sT # Vanuatu Time # Wallis and Futuna @@ -761,31 +799,32 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # NOTES -# This data is by no means authoritative; if you think you know better, +# This file is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz@iana.org for general use in the future). +# tz@iana.org for general use in the future). For more, please see +# the file CONTRIBUTING in the tz distribution. -# From Paul Eggert (2013-02-21): -# A good source for time zone historical data outside the U.S. is +# From Paul Eggert (2014-10-31): +# +# Unless otherwise specified, the source for data through 1990 is: # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003). +# Unfortunately this book contains many errors and cites no sources. # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries -# of the IATA's data after 1990. -# -# Except where otherwise noted, Shanks & Pottenger is the source for -# entries through 1990, and IATA SSIM is the source for entries afterwards. +# of the IATA's data after 1990. Except where otherwise noted, +# IATA SSIM is the source for entries after 1990. # # Another source occasionally used is Edward W. Whitman, World Time Differences, # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which # I found in the UCLA library. # # For data circa 1899, a common source is: -# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 -# <http://www.jstor.org/stable/1774359>. +# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. +# http://www.jstor.org/stable/1774359 # # A reliable and entertaining source about time zones is # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). @@ -802,6 +841,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # 10:00 AEST AEDT Eastern Australia # 10:00 ChST Chamorro # 10:30 LHST LHDT Lord Howe* +# 11:00 BST Bougainville* # 11:30 NZMT NZST New Zealand through 1945 # 12:00 NZST NZDT New Zealand 1946-present # 12:15 CHAST Chatham through 1945* @@ -834,12 +874,12 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # From Paul Eggert (2005-12-08): # Implementation Dates of Daylight Saving Time within Australia -# <http://www.bom.gov.au/climate/averages/tables/dst_times.shtml> +# http://www.bom.gov.au/climate/averages/tables/dst_times.shtml # summarizes daylight saving issues in Australia. # From Arthur David Olson (2005-12-12): # Lawlink NSW:Daylight Saving in New South Wales -# <http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving> +# http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving # covers New South Wales in particular. # From John Mackin (1991-03-06): @@ -976,13 +1016,13 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # # NSW (including LHI and Broken Hill): # Standard Time Act 1987 (updated 1995-04-04) -# <http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html> +# http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html # ACT # Standard Time and Summer Time Act 1972 -# <http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html> +# http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html # SA # Standard Time Act, 1898 -# <http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html> +# http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html # From David Grosz (2005-06-13): # It was announced last week that Daylight Saving would be extended by @@ -1048,7 +1088,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # it matches what was used in the past. # The Australian Bureau of Meteorology FAQ -# <http://www.bom.gov.au/faq/faqgen.htm> +# http://www.bom.gov.au/faq/faqgen.htm # (1999-09-27) writes that Giles Meteorological Station uses # South Australian time even though it's located in Western Australia. @@ -1092,7 +1132,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # From Christopher Hunt (2006-11-21), after an advance warning # from Jesper Nørgaard Welen (2006-11-01): # WA are trialing DST for three years. -# <http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf> +# http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf # From Rives McDow (2002-04-09): # The most interesting region I have found consists of three towns on the @@ -1106,7 +1146,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # From Paul Eggert (2002-04-09): # This is confirmed by the section entitled # "What's the deal with time zones???" in -# <http://www.earthsci.unimelb.edu.au/~awatkins/null.html>. +# http://www.earthsci.unimelb.edu.au/~awatkins/null.html # # From Alex Livingston (2006-12-07): # ... it was just on four years ago that I drove along the Eyre Highway, @@ -1262,33 +1302,32 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # From Eric Ulevik (1999-05-26): # DST will start in NSW on the last Sunday of August, rather than the usual -# October in 2000. [See: Matthew Moore, -# Two months more daylight saving -# Sydney Morning Herald (1999-05-26) -# <http://www.smh.com.au/news/9905/26/pageone/pageone4.html>] +# October in 2000. See: Matthew Moore, +# Two months more daylight saving, Sydney Morning Herald (1999-05-26). +# http://www.smh.com.au/news/9905/26/pageone/pageone4.html # From Paul Eggert (1999-09-27): # See the following official NSW source: # Daylight Saving in New South Wales. -# <http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ> +# http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ # # Narrabri Shire (NSW) council has announced it will ignore the extension of # daylight saving next year. See: # Narrabri Council to ignore daylight saving -# <http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm> +# http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm # (1999-07-22). For now, we'll wait to see if this really happens. # # Victoria will following NSW. See: # Vic to extend daylight saving (1999-07-28) -# <http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm> +# http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm # # However, South Australia rejected the DST request. See: # South Australia rejects Olympics daylight savings request (1999-07-19) -# <http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm> +# http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm # # Queensland also will not observe DST for the Olympics. See: # Qld says no to daylight savings for Olympics -# <http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm> +# http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm # (1999-06-01), which quotes Queensland Premier Peter Beattie as saying # "Look you've got to remember in my family when this came up last time # I voted for it, my wife voted against it and she said to me it's all very @@ -1298,7 +1337,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # # Broken Hill will stick with South Australian time in 2000. See: # Broken Hill to be behind the times (1999-07-21) -# <http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm> +# http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm # IATA SSIM (1998-09) says that the spring 2000 change for Australian # Capital Territory, New South Wales except Lord Howe Island and Broken @@ -1434,15 +1473,15 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # From Paul Eggert (2014-07-14): # Chatham Island time was formally standardized on 1957-01-01 by -# New Zealand's Standard Time Amendment Act 1956 (1956-10-26) -# <http://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf>. +# New Zealand's Standard Time Amendment Act 1956 (1956-10-26). +# http://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf # According to Google Books snippet view, a speaker in the New Zealand # parliamentary debates in 1956 said "Clause 78 makes provision for standard # time in the Chatham Islands. The time there is 45 minutes in advance of New # Zealand time. I understand that is the time they keep locally, anyhow." # For now, assume this practice goes back to the introduction of standard time # in New Zealand, as this would make Chatham Islands time almost exactly match -# LMT back when New Zealand was at UTC+11:30; also, assume Chatham Islands did +# LMT back when New Zealand was at UT +11:30; also, assume Chatham Islands did # not observe New Zealand's prewar DST. ############################################################################### @@ -1498,7 +1537,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # For now, we assume the Ladrones switched at the same time as the Philippines; # see Asia/Manila. -# US Public Law 106-564 (2000-12-23) made UTC+10 the official standard time, +# US Public Law 106-564 (2000-12-23) made UT +10 the official standard time, # under the name "Chamorro Standard Time". There is no official abbreviation, # but Congressman Robert A. Underwood, author of the bill that became law, # wrote in a press release (2000-12-27) that he will seek the use of "ChST". @@ -1510,15 +1549,15 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # "I am certain, having lived there for the past decade, that 'Truk' # (now properly known as Chuuk) ... is in the time zone GMT+10." # -# Shanks & Pottenger write that Truk switched from UTC+10 to UTC+11 +# Shanks & Pottenger write that Truk switched from UT +10 to +11 # on 1978-10-01; ignore this for now. # From Paul Eggert (1999-10-29): # The Federated States of Micronesia Visitors Board writes in # The Federated States of Micronesia - Visitor Information (1999-01-26) -# <http://www.fsmgov.org/info/clocks.html> -# that Truk and Yap are UTC+10, and Ponape and Kosrae are UTC+11. -# We don't know when Kosrae switched from UTC+12; assume January 1 for now. +# http://www.fsmgov.org/info/clocks.html +# that Truk and Yap are UT +10, and Ponape and Kosrae are +11. +# We don't know when Kosrae switched from +12; assume January 1 for now. # Midway @@ -1537,6 +1576,20 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # started DST on June 3. Possibly DST was observed other years # in Midway, but we have no record of it. +# Norfolk + +# From Alexander Krivenyshev (2015-09-23): +# Norfolk Island will change ... from +1130 to +1100: +# https://www.comlaw.gov.au/Details/F2015L01483/Explanatory%20Statement/Text +# ... at 12.30 am (by legal time in New South Wales) on 4 October 2015. +# http://www.norfolkisland.gov.nf/nia/MediaRelease/Media%20Release%20Norfolk%20Island%20Standard%20Time%20Change.pdf + +# From Paul Eggert (2015-09-23): +# Transitions before 2015 are from timeanddate.com, which consulted +# the Norfolk Island Museum and the Australian Bureau of Meteorology's +# Norfolk Island station, and found no record of Norfolk observing DST +# other than in 1974/5. See: +# http://www.timeanddate.com/time/australia/norfolk-island.html # Pitcairn @@ -1570,11 +1623,11 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # ordaining - by a masterpiece of diplomatic flattery - that # the Fourth of July should be celebrated twice in that year." -# Although Shanks & Pottenger says they both switched to UTC-11:30 -# in 1911, and to UTC-11 in 1950. many earlier sources give UTC-11 +# Although Shanks & Pottenger says they both switched to UT -11:30 +# in 1911, and to -11 in 1950. many earlier sources give -11 # for American Samoa, e.g., the US National Bureau of Standards # circular "Standard Time Throughout the World", 1932. -# Assume American Samoa switched to UTC-11 in 1911, not 1950, +# Assume American Samoa switched to -11 in 1911, not 1950, # and that after 1950 they agreed until (western) Samoa skipped a # day in 2011. Assume also that the Samoas follow the US and New # Zealand's "ST"/"DT" style of daylight-saving abbreviations. @@ -1587,9 +1640,9 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # Since Kiribati has moved the Date Line it's not clear what Tonga will do. # Don Mundell writes in the 1997-02-20 Tonga Chronicle -# How Tonga became 'The Land where Time Begins' -# <http://www.tongatapu.net.to/tonga/homeland/timebegins.htm>: - +# How Tonga became 'The Land where Time Begins': +# http://www.tongatapu.net.to/tonga/homeland/timebegins.htm +# # Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST # 12 hours and 20 minutes ahead of GMT. When New Zealand adjusted its # standard time in 1940s, Tonga had the choice of subtracting from its @@ -1661,9 +1714,17 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # of January the standard time in the Kingdom shall be moved backward by one # hour to 1:00am. -# From Pulu 'Anau (2002-11-05): +# From Pulu ʻAnau (2002-11-05): # The law was for 3 years, supposedly to get renewed. It wasn't. +# From Pulu ʻAnau (2016-10-27): +# http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017 +# Cannot find anyone who knows the rules, has seen the duration or has seen +# the cabinet decision, but it appears we are following Fiji's rule set. +# +# From Tim Parenti (2016-10-26): +# Assume Tonga will observe DST from the first Sunday in November at 02:00 +# through the third Sunday in January at 03:00, like Fiji, for now. # Wake @@ -1723,6 +1784,6 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # (2005-03-20): # # The American Practical Navigator (2002) -# <http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187> +# http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187 # talks only about the 180-degree meridian with respect to ships in # international waters; it ignores the international date line. diff --git a/contrib/tzdata/backward b/contrib/tzdata/backward index 36f6aba..aa23dd8 100644 --- a/contrib/tzdata/backward +++ b/contrib/tzdata/backward @@ -4,7 +4,8 @@ # This file provides links between current names for time zones # and their old names. Many names changed in late 1993. -Link Africa/Asmara Africa/Asmera +# Link TARGET LINK-NAME +Link Africa/Nairobi Africa/Asmera Link Africa/Abidjan Africa/Timbuktu Link America/Argentina/Catamarca America/Argentina/ComodRivadavia Link America/Adak America/Atka @@ -19,8 +20,10 @@ Link America/Argentina/Jujuy America/Jujuy Link America/Indiana/Knox America/Knox_IN Link America/Kentucky/Louisville America/Louisville Link America/Argentina/Mendoza America/Mendoza +Link America/Toronto America/Montreal Link America/Rio_Branco America/Porto_Acre Link America/Argentina/Cordoba America/Rosario +Link America/Tijuana America/Santa_Isabel Link America/Denver America/Shiprock Link America/Port_of_Spain America/Virgin Link Pacific/Auckland Antarctica/South_Pole @@ -33,6 +36,7 @@ Link Asia/Shanghai Asia/Harbin Link Asia/Urumqi Asia/Kashgar Link Asia/Kathmandu Asia/Katmandu Link Asia/Macau Asia/Macao +Link Asia/Yangon Asia/Rangoon Link Asia/Ho_Chi_Minh Asia/Saigon Link Asia/Jerusalem Asia/Tel_Aviv Link Asia/Thimphu Asia/Thimbu diff --git a/contrib/tzdata/backzone b/contrib/tzdata/backzone new file mode 100644 index 0000000..4a5085f --- /dev/null +++ b/contrib/tzdata/backzone @@ -0,0 +1,677 @@ +# Zones that go back beyond the scope of the tz database + +# This file is in the public domain. + +# This file is by no means authoritative; if you think you know +# better, go ahead and edit it (and please send any changes to +# tz@iana.org for general use in the future). For more, please see +# the file CONTRIBUTING in the tz distribution. + + +# From Paul Eggert (2014-10-31): + +# This file contains data outside the normal scope of the tz database, +# in that its zones do not differ from normal tz zones after 1970. +# Links in this file point to zones in this file, superseding links in +# the file 'backward'. + +# Although zones in this file may be of some use for analyzing +# pre-1970 time stamps, they are less reliable, cover only a tiny +# sliver of the pre-1970 era, and cannot feasibly be improved to cover +# most of the era. Because the zones are out of normal scope for the +# database, less effort is put into maintaining this file. Many of +# the zones were formerly in other source files, but were removed or +# replaced by links as their data entries were questionable and/or they +# differed from other zones only in pre-1970 time stamps. + +# Unless otherwise specified, the source for data through 1990 is: +# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), +# San Diego: ACS Publications, Inc. (2003). +# Unfortunately this book contains many errors and cites no sources. + +# This file is not intended to be compiled standalone, as it +# assumes rules from other files. In the tz distribution, use +# 'make PACKRATDATA=backzone zones' to compile and install this file. + +# Zones are sorted by zone name. Each zone is preceded by the +# name of the country that the zone is in, along with any other +# commentary and rules associated with the entry. +# +# As explained in the zic man page, the zone columns are: +# Zone NAME GMTOFF RULES FORMAT [UNTIL] + +# Ethiopia +# From Paul Eggert (2014-07-31): +# Like the Swahili of Kenya and Tanzania, many Ethiopians keep a +# 12-hour clock starting at our 06:00, so their "8 o'clock" is our +# 02:00 or 14:00. Keep this in mind when you ask the time in Amharic. +# +# Shanks & Pottenger write that Ethiopia had six narrowly-spaced time +# zones between 1870 and 1890, that they merged to 38E50 (2:35:20) in +# 1890, and that they switched to 3:00 on 1936-05-05. Perhaps 38E50 +# was for Adis Dera. Quite likely the Shanks data entries are wrong +# anyway. +Zone Africa/Addis_Ababa 2:34:48 - LMT 1870 + 2:35:20 - ADMT 1936 May 5 # Adis Dera MT + 3:00 - EAT + +# Eritrea +Zone Africa/Asmara 2:35:32 - LMT 1870 + 2:35:32 - AMT 1890 # Asmara Mean Time + 2:35:20 - ADMT 1936 May 5 # Adis Dera MT + 3:00 - EAT +Link Africa/Asmara Africa/Asmera + +# Mali (southern) +Zone Africa/Bamako -0:32:00 - LMT 1912 + 0:00 - GMT 1934 Feb 26 + -1:00 - WAT 1960 Jun 20 + 0:00 - GMT + +# Central African Republic +Zone Africa/Bangui 1:14:20 - LMT 1912 + 1:00 - WAT + +# Gambia +Zone Africa/Banjul -1:06:36 - LMT 1912 + -1:06:36 - BMT 1935 # Banjul Mean Time + -1:00 - WAT 1964 + 0:00 - GMT + +# Malawi +Zone Africa/Blantyre 2:20:00 - LMT 1903 Mar + 2:00 - CAT + +# Republic of the Congo +Zone Africa/Brazzaville 1:01:08 - LMT 1912 + 1:00 - WAT + +# Burundi +Zone Africa/Bujumbura 1:57:28 - LMT 1890 + 2:00 - CAT + +# Guinea +Zone Africa/Conakry -0:54:52 - LMT 1912 + 0:00 - GMT 1934 Feb 26 + -1:00 - WAT 1960 + 0:00 - GMT + +# Senegal +Zone Africa/Dakar -1:09:44 - LMT 1912 + -1:00 - WAT 1941 Jun + 0:00 - GMT + +# Tanzania +Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 + 3:00 - EAT 1948 + 2:45 - BEAUT 1961 + 3:00 - EAT + +# Djibouti +Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul + 3:00 - EAT + +# Cameroon +# Whitman says they switched to 1:00 in 1920; go with Shanks & Pottenger. +Zone Africa/Douala 0:38:48 - LMT 1912 + 1:00 - WAT +# Sierra Leone +# From Paul Eggert (2014-08-12): +# The following table is from Shanks & Pottenger, but it can't be right. +# Whitman gives Mar 31 - Aug 31 for 1931 on. +# The International Hydrographic Bulletin, 1932-33, p 63 says that +# Sierra Leone would advance its clocks by 20 minutes on 1933-10-01. +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule SL 1935 1942 - Jun 1 0:00 0:40 SLST +Rule SL 1935 1942 - Oct 1 0:00 0 WAT +Rule SL 1957 1962 - Jun 1 0:00 1:00 SLST +Rule SL 1957 1962 - Sep 1 0:00 0 GMT +Zone Africa/Freetown -0:53:00 - LMT 1882 + -0:53:00 - FMT 1913 Jun # Freetown Mean Time + -1:00 SL %s 1957 + 0:00 SL %s + +# Botswana +# From Paul Eggert (2013-02-21): +# Milne says they were regulated by the Cape Town Signal in 1899; +# assume they switched to 2:00 when Cape Town did. +Zone Africa/Gaborone 1:43:40 - LMT 1885 + 1:30 - SAST 1903 Mar + 2:00 - CAT 1943 Sep 19 2:00 + 2:00 1:00 CAST 1944 Mar 19 2:00 + 2:00 - CAT + +# Zimbabwe +Zone Africa/Harare 2:04:12 - LMT 1903 Mar + 2:00 - CAT + +# South Sudan +Zone Africa/Juba 2:06:24 - LMT 1931 + 2:00 Sudan CA%sT 2000 Jan 15 12:00 + 3:00 - EAT + +# Uganda +Zone Africa/Kampala 2:09:40 - LMT 1928 Jul + 3:00 - EAT 1930 + 2:30 - BEAT 1948 + 2:45 - BEAUT 1957 + 3:00 - EAT + +# Rwanda +Zone Africa/Kigali 2:00:16 - LMT 1935 Jun + 2:00 - CAT + +# Democratic Republic of the Congo (west) +Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9 + 1:00 - WAT + +# Gabon +Zone Africa/Libreville 0:37:48 - LMT 1912 + 1:00 - WAT + +# Togo +Zone Africa/Lome 0:04:52 - LMT 1893 + 0:00 - GMT + +# Angola +# +# Shanks gives 1911-05-26 for the transition to WAT, +# evidently confusing the date of the Portuguese decree +# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf +# with the date that it took effect, namely 1912-01-01. +# +Zone Africa/Luanda 0:52:56 - LMT 1892 + 0:52:04 - AOT 1912 Jan 1 # Angola Time + 1:00 - WAT + +# Democratic Republic of the Congo (east) +Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9 + 2:00 - CAT + +# Zambia +Zone Africa/Lusaka 1:53:08 - LMT 1903 Mar + 2:00 - CAT + +# Equatorial Guinea +# +# Although Shanks says that Malabo switched from UT +00 to +01 on 1963-12-15, +# a Google Books search says that London Calling, Issues 432-465 (1948), p 19, +# says that Spanish Guinea was at +01 back then. The Shanks data entries +# are most likely wrong, but we have nothing better; use them here for now. +# +Zone Africa/Malabo 0:35:08 - LMT 1912 + 0:00 - GMT 1963 Dec 15 + 1:00 - WAT + +# Lesotho +Zone Africa/Maseru 1:50:00 - LMT 1903 Mar + 2:00 - SAST 1943 Sep 19 2:00 + 2:00 1:00 SAST 1944 Mar 19 2:00 + 2:00 - SAST + +# Swaziland +Zone Africa/Mbabane 2:04:24 - LMT 1903 Mar + 2:00 - SAST + +# Somalia +Zone Africa/Mogadishu 3:01:28 - LMT 1893 Nov + 3:00 - EAT 1931 + 2:30 - BEAT 1957 + 3:00 - EAT + +# Niger +Zone Africa/Niamey 0:08:28 - LMT 1912 + -1:00 - WAT 1934 Feb 26 + 0:00 - GMT 1960 + 1:00 - WAT + +# Mauritania +Zone Africa/Nouakchott -1:03:48 - LMT 1912 + 0:00 - GMT 1934 Feb 26 + -1:00 - WAT 1960 Nov 28 + 0:00 - GMT + +# Burkina Faso +Zone Africa/Ouagadougou -0:06:04 - LMT 1912 + 0:00 - GMT + +# Benin +# Whitman says they switched to 1:00 in 1946, not 1934; +# go with Shanks & Pottenger. +Zone Africa/Porto-Novo 0:10:28 - LMT 1912 Jan 1 + 0:00 - GMT 1934 Feb 26 + 1:00 - WAT + +# São Tomé and Príncipe +Zone Africa/Sao_Tome 0:26:56 - LMT 1884 + -0:36:32 - LMT 1912 # Lisbon Mean Time + 0:00 - GMT + +# Mali (northern) +Zone Africa/Timbuktu -0:12:04 - LMT 1912 + 0:00 - GMT + +# Anguilla +Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2 + -4:00 - AST + +# Antigua and Barbuda +Zone America/Antigua -4:07:12 - LMT 1912 Mar 2 + -5:00 - EST 1951 + -4:00 - AST + +# Chubut, Argentina +# The name "Comodoro Rivadavia" exceeds the 14-byte POSIX limit. +Zone America/Argentina/ComodRivadavia -4:30:00 - LMT 1894 Oct 31 + -4:16:48 - CMT 1920 May + -4:00 - ART 1930 Dec + -4:00 Arg AR%sT 1969 Oct 5 + -3:00 Arg AR%sT 1991 Mar 3 + -4:00 - WART 1991 Oct 20 + -3:00 Arg AR%sT 1999 Oct 3 + -4:00 Arg AR%sT 2000 Mar 3 + -3:00 - ART 2004 Jun 1 + -4:00 - WART 2004 Jun 20 + -3:00 - ART + +# Aruba +Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad + -4:30 - ANT 1965 # Netherlands Antilles Time + -4:00 - AST + +# Cayman Is +Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown + -5:07:11 - KMT 1912 Feb # Kingston Mean Time + -5:00 - EST + +# Canada +Zone America/Coral_Harbour -5:32:40 - LMT 1884 + -5:00 NT_YK E%sT 1946 + -5:00 - EST + +# Dominica +Zone America/Dominica -4:05:36 - LMT 1911 Jul 1 0:01 # Roseau + -4:00 - AST + +# Baja California +# See 'northamerica' for why this entry is here rather than there. +Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32 + -8:00 - PST 1927 Jun 10 23:00 + -7:00 - MST 1930 Nov 16 + -8:00 - PST 1942 Apr + -7:00 - MST 1949 Jan 14 + -8:00 - PST 1996 + -8:00 Mexico P%sT + +# Grenada +Zone America/Grenada -4:07:00 - LMT 1911 Jul # St George's + -4:00 - AST + +# Guadeloupe +Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe-à-Pitre + -4:00 - AST + +# Canada +# +# From Paul Eggert (2015-03-24): +# Since 1970 most of Quebec has been like Toronto; see +# America/Toronto. However, earlier versions of the tz database +# mistakenly relied on data from Shanks & Pottenger saying that Quebec +# differed from Ontario after 1970, and the following rules and zone +# were created for most of Quebec from the incorrect Shanks & +# Pottenger data. The post-1970 entries have been corrected, but the +# pre-1970 entries are unchecked and probably have errors. +# +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule Mont 1917 only - Mar 25 2:00 1:00 D +Rule Mont 1917 only - Apr 24 0:00 0 S +Rule Mont 1919 only - Mar 31 2:30 1:00 D +Rule Mont 1919 only - Oct 25 2:30 0 S +Rule Mont 1920 only - May 2 2:30 1:00 D +Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S +Rule Mont 1921 only - May 1 2:00 1:00 D +Rule Mont 1922 only - Apr 30 2:00 1:00 D +Rule Mont 1924 only - May 17 2:00 1:00 D +Rule Mont 1924 1926 - Sep lastSun 2:30 0 S +Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D +Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D +Rule Mont 1927 1937 - Sep lastSat 24:00 0 S +Rule Mont 1938 1940 - Apr lastSun 0:00 1:00 D +Rule Mont 1938 1939 - Sep lastSun 0:00 0 S +Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D +Rule Mont 1945 1948 - Sep lastSun 2:00 0 S +Rule Mont 1949 1950 - Oct lastSun 2:00 0 S +Rule Mont 1951 1956 - Sep lastSun 2:00 0 S +Rule Mont 1957 1973 - Oct lastSun 2:00 0 S +Zone America/Montreal -4:54:16 - LMT 1884 + -5:00 Mont E%sT 1918 + -5:00 Canada E%sT 1919 + -5:00 Mont E%sT 1942 Feb 9 2:00s + -5:00 Canada E%sT 1946 + -5:00 Mont E%sT 1974 + -5:00 Canada E%sT + +# Montserrat +# From Paul Eggert (2006-03-22): +# In 1995 volcanic eruptions forced evacuation of Plymouth, the capital. +# world.gazetteer.com says Cork Hill is the most populous location now. +Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Cork Hill + -4:00 - AST + +# Argentina +# This entry was intended for the following areas, but has been superseded by +# more detailed zones. +# Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), Chaco (CC), +# Formosa (FM), La Pampa (LP), Chubut (CH) +Zone America/Rosario -4:02:40 - LMT 1894 Nov + -4:16:44 - CMT 1920 May + -4:00 - ART 1930 Dec + -4:00 Arg AR%sT 1969 Oct 5 + -3:00 Arg AR%sT 1991 Jul + -3:00 - ART 1999 Oct 3 0:00 + -4:00 Arg AR%sT 2000 Mar 3 0:00 + -3:00 - ART + +# St Kitts-Nevis +Zone America/St_Kitts -4:10:52 - LMT 1912 Mar 2 # Basseterre + -4:00 - AST + +# St Lucia +Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries + -4:04:00 - CMT 1912 # Castries Mean Time + -4:00 - AST + +# Virgin Is +Zone America/St_Thomas -4:19:44 - LMT 1911 Jul # Charlotte Amalie + -4:00 - AST + +# St Vincent and the Grenadines +Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown + -4:04:56 - KMT 1912 # Kingstown Mean Time + -4:00 - AST + +# British Virgin Is +Zone America/Tortola -4:18:28 - LMT 1911 Jul # Road Town + -4:00 - AST + +# McMurdo, Ross Island, since 1955-12 +Zone Antarctica/McMurdo 0 - -00 1956 + 12:00 NZ NZ%sT +Link Antarctica/McMurdo Antarctica/South_Pole + +# Yemen +# Milne says 2:59:54 was the meridian of the saluting battery at Aden, +# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia. +Zone Asia/Aden 2:59:54 - LMT 1950 + 3:00 - AST + +# Bahrain +Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah + 4:00 - GST 1972 Jun + 3:00 - AST + +# India +# +# From Paul Eggert (2014-09-06): +# The 1876 Report of the Secretary of the [US] Navy, p 305 says that Madras +# civil time was 5:20:57.3. +# +# From Paul Eggert (2014-08-21): +# In tomorrow's The Hindu, Nitya Menon reports that India had two civil time +# zones starting in 1884, one in Bombay and one in Calcutta, and that railways +# used a third time zone based on Madras time (80 deg. 18'30" E). Also, +# in 1881 Bombay briefly switched to Madras time, but switched back. See: +# http://www.thehindu.com/news/cities/chennai/madras-375-when-madras-clocked-the-time/article6339393.ece +#Zone Asia/Chennai [not enough info to complete] + +# China +# Long-shu Time (probably due to Long and Shu being two names of that area) +# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan; +# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong +# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing, +# Yangchun, Yangjiang, Yu'nan, and Yunfu. +Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking + 7:00 - LONT 1980 May # Long-shu Time + 8:00 PRC C%sT +Link Asia/Chongqing Asia/Chungking + +# Vietnam +# From Paul Eggert (2014-10-13): +# See Asia/Ho_Chi_Minh for the source for this data. +# Trần's book says the 1954-55 transition to 07:00 in Hanoi was in +# October 1954, with exact date and time unspecified. +Zone Asia/Hanoi 7:03:24 - LMT 1906 Jul 1 + 7:06:30 - PLMT 1911 May 1 + 7:00 - ICT 1942 Dec 31 23:00 + 8:00 - IDT 1945 Mar 14 23:00 + 9:00 - JST 1945 Sep 2 + 7:00 - ICT 1947 Apr 1 + 8:00 - IDT 1954 Oct + 7:00 - ICT + +# China +# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) +# Heilongjiang (except Mohe county), Jilin +Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin + 8:30 - CHAT 1932 Mar # Changbai Time + 8:00 - CST 1940 + 9:00 - CHAT 1966 May + 8:30 - CHAT 1980 May + 8:00 PRC C%sT + +# far west China +Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar + 5:30 - KAST 1940 # Kashgar Time + 5:00 - KAST 1980 May + 8:00 PRC C%sT + +# Kuwait +Zone Asia/Kuwait 3:11:56 - LMT 1950 + 3:00 - AST + + +# Oman +# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory. +Zone Asia/Muscat 3:54:24 - LMT 1920 + 4:00 - GST + +# India +# From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne: +# According to a Portuguese decree (1911-05-26) +# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf +# Portuguese India switched to UT +05 on 1912-01-01. +#Zone Asia/Panaji [not enough info to complete] + +# Cambodia +# From Paul Eggert (2014-10-11): +# See Asia/Ho_Chi_Minh for the source for most of this data. Also, guess +# (1) Cambodia reverted to UT +07 on 1945-09-02, when Vietnam did, and +# (2) they also reverted to +07 on 1953-11-09, the date of independence. +# These guesses are probably wrong but they're better than guessing no +# transitions there. +Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1 + 7:06:30 - PLMT 1911 May 1 + 7:00 - ICT 1942 Dec 31 23:00 + 8:00 - IDT 1945 Mar 14 23:00 + 9:00 - JST 1945 Sep 2 + 7:00 - ICT 1947 Apr 1 + 8:00 - IDT 1953 Nov 9 + 7:00 - ICT + +# Israel +Zone Asia/Tel_Aviv 2:19:04 - LMT 1880 + 2:21 - JMT 1918 + 2:00 Zion I%sT + +# Laos +# From Paul Eggert (2014-10-11): +# See Asia/Ho_Chi_Minh for the source for most of this data. +# Trần's book says that Laos reverted to UT +07 on 1955-04-15. +# Also, guess that Laos reverted to +07 on 1945-09-02, when Vietnam did; +# this is probably wrong but it's better than guessing no transition. +Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1 + 7:06:30 - PLMT 1911 May 1 + 7:00 - ICT 1942 Dec 31 23:00 + 8:00 - IDT 1945 Mar 14 23:00 + 9:00 - JST 1945 Sep 2 + 7:00 - ICT 1947 Apr 1 + 8:00 - IDT 1955 Apr 15 + 7:00 - ICT + +# Jan Mayen +# From Whitman: +Zone Atlantic/Jan_Mayen -1:00 - EGT + +# St Helena +Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown + -0:22:48 - JMT 1951 # Jamestown Mean Time + 0:00 - GMT + +# Northern Ireland +Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2 + -0:25:21 - DMT 1916 May 21 2:00 + # DMT = Dublin/Dunsink MT + -0:25:21 1:00 IST 1916 Oct 1 2:00s + # IST = Irish Summer Time + 0:00 GB-Eire %s 1968 Oct 27 + 1:00 - BST 1971 Oct 31 2:00u + 0:00 GB-Eire %s 1996 + 0:00 EU GMT/BST + +# Guernsey +# Data from Joseph S. Myers +# http://mm.icann.org/pipermail/tz/2013-September/019883.html +# References to be added +# LMT Location - 49.27N -2.33E - St.Peter Port +Zone Europe/Guernsey -0:09:19 - LMT 1913 Jun 18 + 0:00 GB-Eire %s 1940 Jul 2 + 1:00 C-Eur CE%sT 1945 May 8 + 0:00 GB-Eire %s 1968 Oct 27 + 1:00 - BST 1971 Oct 31 2:00u + 0:00 GB-Eire %s 1996 + 0:00 EU GMT/BST + +# Isle of Man +# +# From Lester Caine (2013-09-04): +# The Isle of Man legislation is now on-line at +# <http://www.legislation.gov.im>, starting with the original Statutory +# Time Act in 1883 and including additional confirmation of some of +# the dates of the 'Summer Time' orders originating at +# Westminster. There is a little uncertainty as to the starting date +# of the first summer time in 1916 which may have be announced a +# couple of days late. There is still a substantial number of +# documents to work through, but it is thought that every GB change +# was also implemented on the island. +# +# AT4 of 1883 - The Statutory Time et cetera Act 1883 - +# LMT Location - 54.1508N -4.4814E - Tynwald Hill ( Manx parliament ) +Zone Europe/Isle_of_Man -0:17:55 - LMT 1883 Mar 30 0:00s + 0:00 GB-Eire %s 1968 Oct 27 + 1:00 - BST 1971 Oct 31 2:00u + 0:00 GB-Eire %s 1996 + 0:00 EU GMT/BST + +# Jersey +# Data from Joseph S. Myers +# http://mm.icann.org/pipermail/tz/2013-September/019883.html +# References to be added +# LMT Location - 49.187N -2.107E - St. Helier +Zone Europe/Jersey -0:08:25 - LMT 1898 Jun 11 16:00u + 0:00 GB-Eire %s 1940 Jul 2 + 1:00 C-Eur CE%sT 1945 May 8 + 0:00 GB-Eire %s 1968 Oct 27 + 1:00 - BST 1971 Oct 31 2:00u + 0:00 GB-Eire %s 1996 + 0:00 EU GMT/BST + +# Slovenia +Zone Europe/Ljubljana 0:58:04 - LMT 1884 + 1:00 - CET 1941 Apr 18 23:00 + 1:00 C-Eur CE%sT 1945 May 8 2:00s + 1:00 1:00 CEST 1945 Sep 16 2:00s + 1:00 - CET 1982 Nov 27 + 1:00 EU CE%sT + +# Bosnia and Herzegovina +Zone Europe/Sarajevo 1:13:40 - LMT 1884 + 1:00 - CET 1941 Apr 18 23:00 + 1:00 C-Eur CE%sT 1945 May 8 2:00s + 1:00 1:00 CEST 1945 Sep 16 2:00s + 1:00 - CET 1982 Nov 27 + 1:00 EU CE%sT + +# Macedonia +Zone Europe/Skopje 1:25:44 - LMT 1884 + 1:00 - CET 1941 Apr 18 23:00 + 1:00 C-Eur CE%sT 1945 May 8 2:00s + 1:00 1:00 CEST 1945 Sep 16 2:00s + 1:00 - CET 1982 Nov 27 + 1:00 EU CE%sT + +# Moldova / Transnistria +Zone Europe/Tiraspol 1:58:32 - LMT 1880 + 1:55 - CMT 1918 Feb 15 # Chisinau MT + 1:44:24 - BMT 1931 Jul 24 # Bucharest MT + 2:00 Romania EE%sT 1940 Aug 15 + 2:00 1:00 EEST 1941 Jul 17 + 1:00 C-Eur CE%sT 1944 Aug 24 + 3:00 Russia MSK/MSD 1991 Mar 31 2:00 + 2:00 Russia EE%sT 1992 Jan 19 2:00 + 3:00 Russia MSK/MSD + +# Liechtenstein +Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun + 1:00 - CET 1981 + 1:00 EU CE%sT + +# Croatia +Zone Europe/Zagreb 1:03:52 - LMT 1884 + 1:00 - CET 1941 Apr 18 23:00 + 1:00 C-Eur CE%sT 1945 May 8 2:00s + 1:00 1:00 CEST 1945 Sep 16 2:00s + 1:00 - CET 1982 Nov 27 + 1:00 EU CE%sT + +# Madagascar +Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul + 3:00 - EAT 1954 Feb 27 23:00s + 3:00 1:00 EAST 1954 May 29 23:00s + 3:00 - EAT + +# Comoros +Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro + 3:00 - EAT + +# Mayotte +Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou + 3:00 - EAT + +# US minor outlying islands +Zone Pacific/Johnston -10:00 - HST + +# US minor outlying islands +# +# From Mark Brader (2005-01-23): +# [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies, +# published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3] +# reproduced a Pan American Airways timetable from 1936, for their weekly +# "Orient Express" flights between San Francisco and Manila, and connecting +# flights to Chicago and the US East Coast. As it uses some time zone +# designations that I've never seen before:.... +# Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun. +# " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A " +# +Zone Pacific/Midway -11:49:28 - LMT 1901 + -11:00 - NST 1956 Jun 3 + -11:00 1:00 NDT 1956 Sep 2 + -11:00 - NST 1967 Apr # N=Nome + -11:00 - BST 1983 Nov 30 # B=Bering + -11:00 - SST # S=Samoa + +# N Mariana Is +Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31 + 9:43:00 - LMT 1901 + 9:00 - MPT 1969 Oct # N Mariana Is Time + 10:00 - MPT 2000 Dec 23 + 10:00 - ChST # Chamorro Standard Time diff --git a/contrib/tzdata/checklinks.awk b/contrib/tzdata/checklinks.awk new file mode 100644 index 0000000..5b3e157 --- /dev/null +++ b/contrib/tzdata/checklinks.awk @@ -0,0 +1,48 @@ +# Check links in tz tables. + +# Contributed by Paul Eggert. This file is in the public domain. + +BEGIN { + # Special marker indicating that the name is defined as a Zone. + # It is a newline so that it cannot match a valid name. + # It is not null so that its slot does not appear unset. + Zone = "\n" +} + +/^Zone/ { + if (defined[$2]) { + if (defined[$2] == Zone) { + printf "%s: Zone has duplicate definition\n", $2 + } else { + printf "%s: Link with same name as Zone\n", $2 + } + status = 1 + } + defined[$2] = Zone +} + +/^Link/ { + if (defined[$3]) { + if (defined[$3] == Zone) { + printf "%s: Link with same name as Zone\n", $3 + } else if (defined[$3] == $2) { + printf "%s: Link has duplicate definition\n", $3 + } else { + printf "%s: Link to both %s and %s\n", $3, defined[$3], $2 + } + status = 1 + } + used[$2] = 1 + defined[$3] = $2 +} + +END { + for (tz in used) { + if (defined[tz] != Zone) { + printf "%s: Link to non-zone\n", tz + status = 1 + } + } + + exit status +} diff --git a/contrib/tzdata/checktab.awk b/contrib/tzdata/checktab.awk new file mode 100644 index 0000000..2397673 --- /dev/null +++ b/contrib/tzdata/checktab.awk @@ -0,0 +1,177 @@ +# Check tz tables for consistency. + +# Contributed by Paul Eggert. This file is in the public domain. + +BEGIN { + FS = "\t" + + if (!iso_table) iso_table = "iso3166.tab" + if (!zone_table) zone_table = "zone1970.tab" + if (!want_warnings) want_warnings = -1 + + while (getline <iso_table) { + iso_NR++ + if ($0 ~ /^#/) continue + if (NF != 2) { + printf "%s:%d: wrong number of columns\n", \ + iso_table, iso_NR >>"/dev/stderr" + status = 1 + } + cc = $1 + name = $2 + if (cc !~ /^[A-Z][A-Z]$/) { + printf "%s:%d: invalid country code '%s'\n", \ + iso_table, iso_NR, cc >>"/dev/stderr" + status = 1 + } + if (cc <= cc0) { + if (cc == cc0) { + s = "duplicate"; + } else { + s = "out of order"; + } + + printf "%s:%d: country code '%s' is %s\n", \ + iso_table, iso_NR, cc, s \ + >>"/dev/stderr" + status = 1 + } + cc0 = cc + if (name2cc[name]) { + printf "%s:%d: '%s' and '%s' have the same name\n", \ + iso_table, iso_NR, name2cc[name], cc \ + >>"/dev/stderr" + status = 1 + } + name2cc[name] = cc + cc2name[cc] = name + cc2NR[cc] = iso_NR + } + + cc0 = "" + + while (getline <zone_table) { + zone_NR++ + if ($0 ~ /^#/) continue + if (NF != 3 && NF != 4) { + printf "%s:%d: wrong number of columns\n", \ + zone_table, zone_NR >>"/dev/stderr" + status = 1 + } + split($1, cca, /,/) + cc = cca[1] + coordinates = $2 + tz = $3 + comments = $4 + if (cc < cc0) { + printf "%s:%d: country code '%s' is out of order\n", \ + zone_table, zone_NR, cc >>"/dev/stderr" + status = 1 + } + cc0 = cc + tztab[tz] = 1 + tz2comments[tz] = comments + tz2NR[tz] = zone_NR + for (i in cca) { + cc = cca[i] + cctz = cc tz + cctztab[cctz] = 1 + if (cc2name[cc]) { + cc_used[cc]++ + } else { + printf "%s:%d: %s: unknown country code\n", \ + zone_table, zone_NR, cc >>"/dev/stderr" + status = 1 + } + } + if (coordinates !~ /^[-+][0-9][0-9][0-5][0-9][-+][01][0-9][0-9][0-5][0-9]$/ \ + && coordinates !~ /^[-+][0-9][0-9][0-5][0-9][0-5][0-9][-+][01][0-9][0-9][0-5][0-9][0-5][0-9]$/) { + printf "%s:%d: %s: invalid coordinates\n", \ + zone_table, zone_NR, coordinates >>"/dev/stderr" + status = 1 + } + } + + for (cctz in cctztab) { + cc = substr (cctz, 1, 2) + tz = substr (cctz, 3) + if (1 < cc_used[cc]) { + comments_needed[tz] = cc + } + } + for (cctz in cctztab) { + cc = substr (cctz, 1, 2) + tz = substr (cctz, 3) + if (!comments_needed[tz] && tz2comments[tz]) { + printf "%s:%d: unnecessary comment '%s'\n", \ + zone_table, tz2NR[tz], tz2comments[tz] \ + >>"/dev/stderr" + tz2comments[tz] = 0 + status = 1 + } else if (comments_needed[tz] && !tz2comments[tz]) { + printf "%s:%d: missing comment for %s\n", \ + zone_table, tz2NR[tz], comments_needed[tz] \ + >>"/dev/stderr" + tz2comments[tz] = 1 + status = 1 + } + } + FS = " " +} + +$1 ~ /^#/ { next } + +{ + tz = rules = "" + if ($1 == "Zone") { + tz = $2 + ruleUsed[$4] = 1 + } else if ($1 == "Link" && zone_table == "zone.tab") { + # Ignore Link commands if source and destination basenames + # are identical, e.g. Europe/Istanbul versus Asia/Istanbul. + src = $2 + dst = $3 + while ((i = index(src, "/"))) src = substr(src, i+1) + while ((i = index(dst, "/"))) dst = substr(dst, i+1) + if (src != dst) tz = $3 + } else if ($1 == "Rule") { + ruleDefined[$2] = 1 + } else { + ruleUsed[$2] = 1 + } + if (tz && tz ~ /\//) { + if (!tztab[tz]) { + printf "%s: no data for '%s'\n", zone_table, tz \ + >>"/dev/stderr" + status = 1 + } + zoneSeen[tz] = 1 + } +} + +END { + for (tz in ruleDefined) { + if (!ruleUsed[tz]) { + printf "%s: Rule never used\n", tz + status = 1 + } + } + for (tz in tztab) { + if (!zoneSeen[tz]) { + printf "%s:%d: no Zone table for '%s'\n", \ + zone_table, tz2NR[tz], tz >>"/dev/stderr" + status = 1 + } + } + if (0 < want_warnings) { + for (cc in cc2name) { + if (!cc_used[cc]) { + printf "%s:%d: warning: " \ + "no Zone entries for %s (%s)\n", \ + iso_table, cc2NR[cc], cc, cc2name[cc] + } + } + } + + exit status +} diff --git a/contrib/tzdata/etcetera b/contrib/tzdata/etcetera index 3d271a5..99ad2c7 100644 --- a/contrib/tzdata/etcetera +++ b/contrib/tzdata/etcetera @@ -8,6 +8,13 @@ # need now for the entries that are not on UTC are for ships at sea # that cannot use POSIX TZ settings. +# Starting with POSIX 1003.1-2001, the entries below are all +# unnecessary as settings for the TZ environment variable. E.g., +# instead of TZ='Etc/GMT+4' one can use the POSIX setting TZ='<-04>+4'. +# +# Do not use a POSIX TZ setting like TZ='GMT+4', which is four hours +# behind GMT but uses the completely misleading abbreviation "GMT". + Zone Etc/GMT 0 - GMT Zone Etc/UTC 0 - UTC Zone Etc/UCT 0 - UCT @@ -26,23 +33,13 @@ Link Etc/GMT Etc/GMT-0 Link Etc/GMT Etc/GMT+0 Link Etc/GMT Etc/GMT0 -# We use POSIX-style signs in the Zone names and the output abbreviations, +# Be consistent with POSIX TZ settings in the Zone names, # even though this is the opposite of what many people expect. # POSIX has positive signs west of Greenwich, but many people expect # positive signs east of Greenwich. For example, TZ='Etc/GMT+4' uses -# the abbreviation "GMT+4" and corresponds to 4 hours behind UT +# the abbreviation "-04" and corresponds to 4 hours behind UT # (i.e. west of Greenwich) even though many people would expect it to # mean 4 hours ahead of UT (i.e. east of Greenwich). -# -# In the draft 5 of POSIX 1003.1-200x, the angle bracket notation allows for -# TZ='<GMT-4>+4'; if you want time zone abbreviations conforming to -# ISO 8601 you can use TZ='<-0400>+4'. Thus the commonly-expected -# offset is kept within the angle bracket (and is used for display) -# while the POSIX sign is kept outside the angle bracket (and is used -# for calculation). -# -# Do not use a TZ setting like TZ='GMT+4', which is four hours behind -# GMT but uses the completely misleading abbreviation "GMT". # Earlier incarnations of this package were not POSIX-compliant, # and had lines such as @@ -51,30 +48,31 @@ Link Etc/GMT Etc/GMT0 # way does a # zic -l GMT-12 # so we moved the names into the Etc subdirectory. +# Also, the time zone abbreviations are now compatible with %z. -Zone Etc/GMT-14 14 - GMT-14 # 14 hours ahead of GMT -Zone Etc/GMT-13 13 - GMT-13 -Zone Etc/GMT-12 12 - GMT-12 -Zone Etc/GMT-11 11 - GMT-11 -Zone Etc/GMT-10 10 - GMT-10 -Zone Etc/GMT-9 9 - GMT-9 -Zone Etc/GMT-8 8 - GMT-8 -Zone Etc/GMT-7 7 - GMT-7 -Zone Etc/GMT-6 6 - GMT-6 -Zone Etc/GMT-5 5 - GMT-5 -Zone Etc/GMT-4 4 - GMT-4 -Zone Etc/GMT-3 3 - GMT-3 -Zone Etc/GMT-2 2 - GMT-2 -Zone Etc/GMT-1 1 - GMT-1 -Zone Etc/GMT+1 -1 - GMT+1 -Zone Etc/GMT+2 -2 - GMT+2 -Zone Etc/GMT+3 -3 - GMT+3 -Zone Etc/GMT+4 -4 - GMT+4 -Zone Etc/GMT+5 -5 - GMT+5 -Zone Etc/GMT+6 -6 - GMT+6 -Zone Etc/GMT+7 -7 - GMT+7 -Zone Etc/GMT+8 -8 - GMT+8 -Zone Etc/GMT+9 -9 - GMT+9 -Zone Etc/GMT+10 -10 - GMT+10 -Zone Etc/GMT+11 -11 - GMT+11 -Zone Etc/GMT+12 -12 - GMT+12 +Zone Etc/GMT-14 14 - +14 +Zone Etc/GMT-13 13 - +13 +Zone Etc/GMT-12 12 - +12 +Zone Etc/GMT-11 11 - +11 +Zone Etc/GMT-10 10 - +10 +Zone Etc/GMT-9 9 - +09 +Zone Etc/GMT-8 8 - +08 +Zone Etc/GMT-7 7 - +07 +Zone Etc/GMT-6 6 - +06 +Zone Etc/GMT-5 5 - +05 +Zone Etc/GMT-4 4 - +04 +Zone Etc/GMT-3 3 - +03 +Zone Etc/GMT-2 2 - +02 +Zone Etc/GMT-1 1 - +01 +Zone Etc/GMT+1 -1 - -01 +Zone Etc/GMT+2 -2 - -02 +Zone Etc/GMT+3 -3 - -03 +Zone Etc/GMT+4 -4 - -04 +Zone Etc/GMT+5 -5 - -05 +Zone Etc/GMT+6 -6 - -06 +Zone Etc/GMT+7 -7 - -07 +Zone Etc/GMT+8 -8 - -08 +Zone Etc/GMT+9 -9 - -09 +Zone Etc/GMT+10 -10 - -10 +Zone Etc/GMT+11 -11 - -11 +Zone Etc/GMT+12 -12 - -12 diff --git a/contrib/tzdata/europe b/contrib/tzdata/europe index 3ab6b0f..4709cc7 100644 --- a/contrib/tzdata/europe +++ b/contrib/tzdata/europe @@ -1,20 +1,24 @@ # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. -# This data is by no means authoritative; if you think you know better, +# This file is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz@iana.org for general use in the future). +# tz@iana.org for general use in the future). For more, please see +# the file CONTRIBUTING in the tz distribution. -# From Paul Eggert (2014-05-31): -# A good source for time zone historical data outside the U.S. is +# From Paul Eggert (2014-10-31): +# +# Unless otherwise specified, the source for data through 1990 is: # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003). +# Unfortunately this book contains many errors and cites no sources. # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries -# of the IATA's data after 1990. +# of the IATA's data after 1990. Except where otherwise noted, +# IATA SSIM is the source for entries after 1990. # # A reliable and entertaining source about time zones is # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). @@ -38,6 +42,16 @@ # may be sent to Mr. John Milne, Royal Geographical Society, # Savile Row, London." Nowadays please email them to tz@iana.org. # +# Byalokoz EL. New Counting of Time in Russia since July 1, 1919. +# This Russian-language source was consulted by Vladimir Karpinsky; see +# http://mm.icann.org/pipermail/tz/2014-August/021320.html +# The full Russian citation is: +# Бялокоз, Евгений Людвигович. Новый счет времени в течении суток +# введенный декретом Совета народных комиссаров для всей России с 1-го +# июля 1919 г. / Изд. 2-е Междуведомственной комиссии. - Петроград: +# Десятая гос. тип., 1919. +# http://resolver.gpntb.ru/purl?docushare/dsweb/Get/Resource-2011/Byalokoz__E.L.__Novyy__schet__vremeni__v__techenie__sutok__izd__2(1).pdf +# # Brazil's Divisão Serviço da Hora (DSHO), # History of Summer Time # <http://pcdsh01.on.br/HISTHV.htm> @@ -57,11 +71,11 @@ # 0:00 WET WEST WEMT Western Europe # 0:19:32.13 AMT NST Amsterdam, Netherlands Summer (1835-1937)* # 0:20 NET NEST Netherlands (1937-1940)* +# 1:00 BST British Standard (1968-1971) # 1:00 CET CEST CEMT Central Europe # 1:00:14 SET Swedish (1879-1899)* # 2:00 EET EEST Eastern Europe -# 3:00 FET Further-eastern Europe* -# 3:00 MSK MSD MSM* Moscow +# 3:00 MSK MSD Moscow # From Peter Ilieve (1994-12-04), # The original six [EU members]: Belgium, France, (West) Germany, Italy, @@ -174,14 +188,18 @@ # between 160 and 170 hours more daylight leisure, to a war which # plunged Europe into darkness for four years, and shook the # foundations of civilization throughout the world. -# <http://www.winstonchurchill.org/images/finesthour/Vol.01%20No.114.pdf> -# "A Silent Toast to William Willett", Pictorial Weekly +# -- "A Silent Toast to William Willett", Pictorial Weekly; +# republished in Finest Hour (Spring 2002) 1(114):26 +# http://www.winstonchurchill.org/images/finesthour/Vol.01%20No.114.pdf -# From Paul Eggert (1996-09-03): +# From Paul Eggert (2015-08-08): # The OED Supplement says that the English originally said "Daylight Saving" # when they were debating the adoption of DST in 1908; but by 1916 this # term appears only in quotes taken from DST's opponents, whereas the # proponents (who eventually won the argument) are quoted as using "Summer". +# The term "Summer Time" was introduced by Herbert Samuel, Home Secretary; see: +# Viscount Samuel. Leisure in a Democracy. Cambridge University Press +# ISBN 978-1-107-49471-8 (1949, reissued 2015), p 8. # From Arthur David Olson (1989-01-19): # A source at the British Information Office in New York avers that it's @@ -210,8 +228,8 @@ # official designation; the reply of the 21st was that there wasn't # but he couldn't think of anything better than the "Double British # Summer Time" that the BBC had been using informally. -# http://student.cusu.cam.ac.uk/~jsm28/british-time/bbc-19410418.png -# http://student.cusu.cam.ac.uk/~jsm28/british-time/ho-19410421.png +# http://www.polyomino.org.uk/british-time/bbc-19410418.png +# http://www.polyomino.org.uk/british-time/ho-19410421.png # From Sir Alexander Maxwell in the above-mentioned letter (1941-04-21): # [N]o official designation has as far as I know been adopted for the time @@ -228,15 +246,13 @@ # the history of summer time legislation in the United Kingdom. # Since 1998 Joseph S. Myers has been updating # and extending this list, which can be found in -# http://student.cusu.cam.ac.uk/~jsm28/british-time/ -# History of legal time in Britain # http://www.polyomino.org.uk/british-time/ # From Joseph S. Myers (1998-01-06): # # The legal time in the UK outside of summer time is definitely GMT, not UTC; # see Lord Tanlaw's speech -# <http://www.parliament.the-stationery-office.co.uk/pa/ld199697/ldhansrd/pdvn/lds97/text/70611-20.htm#70611-20_head0> +# http://www.publications.parliament.uk/pa/ld199798/ldhansrd/vo970611/text/70611-10.htm#70611-10_head0 # (Lords Hansard 11 June 1997 columns 964 to 976). # From Paul Eggert (2006-03-22): @@ -276,6 +292,14 @@ # "Timeball on the ballast office is down. Dunsink time." # -- James Joyce, Ulysses +# "Countess Markievicz ... claimed that the [1916] abolition of Dublin Mean Time +# was among various actions undertaken by the 'English' government that +# would 'put the whole country into the SF (Sinn Féin) camp'. She claimed +# Irish 'public feeling (was) outraged by forcing of English time on us'." +# -- Parsons M. Dublin lost its time zone - and 25 minutes - after 1916 Rising. +# Irish Times 2014-10-27. +# http://www.irishtimes.com/news/politics/dublin-lost-its-time-zone-and-25-minutes-after-1916-rising-1.1977411 + # From Joseph S. Myers (2005-01-26): # Irish laws are available online at <http://www.irishstatutebook.ie>. # These include various relating to legal time, for example: @@ -321,7 +345,7 @@ # From an anonymous contributor (1996-06-02): # The law governing time in Ireland is under Statutory Instrument SI 395/94, -# which gives force to European Union 7th Council Directive # 94/21/EC. +# which gives force to European Union 7th Council Directive No. 94/21/EC. # Under this directive, the Minister for Justice in Ireland makes appropriate # regulations. I spoke this morning with the Secretary of the Department of # Justice (tel +353 1 678 9711) who confirmed to me that the correct name is @@ -440,25 +464,27 @@ Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT # Use Europe/London for Jersey, Guernsey, and the Isle of Man. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Europe/London -0:01:15 - LMT 1847 Dec 1 0:00s +Zone Europe/London -0:01:15 - LMT 1847 Dec 1 0:00s 0:00 GB-Eire %s 1968 Oct 27 - 1:00 - BST 1971 Oct 31 2:00u + 1:00 - BST 1971 Oct 31 2:00u 0:00 GB-Eire %s 1996 0:00 EU GMT/BST Link Europe/London Europe/Jersey Link Europe/London Europe/Guernsey Link Europe/London Europe/Isle_of_Man + +# Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2 - -0:25:21 - DMT 1916 May 21 2:00 - -0:25:21 1:00 IST 1916 Oct 1 2:00s + -0:25:21 - DMT 1916 May 21 2:00 + -0:25:21 1:00 IST 1916 Oct 1 2:00s 0:00 GB-Eire %s 1921 Dec 6 # independence - 0:00 GB-Eire GMT/IST 1940 Feb 25 2:00 - 0:00 1:00 IST 1946 Oct 6 2:00 - 0:00 - GMT 1947 Mar 16 2:00 - 0:00 1:00 IST 1947 Nov 2 2:00 - 0:00 - GMT 1948 Apr 18 2:00 + 0:00 GB-Eire GMT/IST 1940 Feb 25 2:00 + 0:00 1:00 IST 1946 Oct 6 2:00 + 0:00 - GMT 1947 Mar 16 2:00 + 0:00 1:00 IST 1947 Nov 2 2:00 + 0:00 - GMT 1948 Apr 18 2:00 0:00 GB-Eire GMT/IST 1968 Oct 27 - 1:00 - IST 1971 Oct 31 2:00u + 1:00 - IST 1971 Oct 31 2:00u 0:00 GB-Eire GMT/IST 1996 0:00 EU GMT/IST @@ -479,7 +505,7 @@ Rule EU 1996 max - Oct lastSun 1:00u 0 - # The most recent directive covers the years starting in 2002. See: # Directive 2000/84/EC of the European Parliament and of the Council # of 19 January 2001 on summer-time arrangements. -# <http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32000L0084:EN:NOT> +# http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32000L0084:EN:NOT # W-Eur differs from EU only in that W-Eur uses standard time. Rule W-Eur 1977 1980 - Apr Sun>=1 1:00s 1:00 S @@ -513,7 +539,7 @@ Rule C-Eur 1944 only - Oct 2 2:00s 0 - # 0:00 France WE%sT 1945 Sep 16 3:00 # # Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 -# 0:00 France WE%sT 1945 Sep 16 3:00 +# 0:00 France WE%sT 1945 Sep 16 3:00 # # Zone Europe/Belgrade 1:22:00 - LMT 1884 # 1:00 1:00 CEST 1945 Sep 16 2:00s @@ -556,31 +582,73 @@ Rule E-Eur 1979 1995 - Sep lastSun 0:00 0 - Rule E-Eur 1981 max - Mar lastSun 0:00 1:00 S Rule E-Eur 1996 max - Oct lastSun 0:00 0 - + +# Daylight saving time for Russia and the Soviet Union +# +# The 1917-1921 decree URLs are from Alexander Belopolsky (2016-08-23). + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Russia 1917 only - Jul 1 23:00 1:00 MST # Moscow Summer Time -Rule Russia 1917 only - Dec 28 0:00 0 MMT # Moscow Mean Time -Rule Russia 1918 only - May 31 22:00 2:00 MDST # Moscow Double Summer Time +Rule Russia 1917 only - Jul 1 23:00 1:00 MST # Moscow Summer Time +# +# Decree No. 142 (1917-12-22) http://istmat.info/node/28137 +Rule Russia 1917 only - Dec 28 0:00 0 MMT # Moscow Mean Time +# +# Decree No. 497 (1918-05-30) http://istmat.info/node/30001 +Rule Russia 1918 only - May 31 22:00 2:00 MDST # Moscow Double Summer Time Rule Russia 1918 only - Sep 16 1:00 1:00 MST +# +# Decree No. 258 (1919-05-29) http://istmat.info/node/37949 Rule Russia 1919 only - May 31 23:00 2:00 MDST -Rule Russia 1919 only - Jul 1 2:00 1:00 MSD +# +Rule Russia 1919 only - Jul 1 0:00u 1:00 MSD Rule Russia 1919 only - Aug 16 0:00 0 MSK +# +# Decree No. 63 (1921-02-03) http://istmat.info/node/45840 Rule Russia 1921 only - Feb 14 23:00 1:00 MSD -Rule Russia 1921 only - Mar 20 23:00 2:00 MSM # Midsummer +# +# Decree No. 121 (1921-03-07) http://istmat.info/node/45949 +Rule Russia 1921 only - Mar 20 23:00 2:00 +05 +# Rule Russia 1921 only - Sep 1 0:00 1:00 MSD Rule Russia 1921 only - Oct 1 0:00 0 - -# Act No.925 of the Council of Ministers of the USSR (1980-10-24): +# Act No. 925 of the Council of Ministers of the USSR (1980-10-24): Rule Russia 1981 1984 - Apr 1 0:00 1:00 S Rule Russia 1981 1983 - Oct 1 0:00 0 - -# Act No.967 of the Council of Ministers of the USSR (1984-09-13), repeated in -# Act No.227 of the Council of Ministers of the USSR (1989-03-14): -Rule Russia 1984 1991 - Sep lastSun 2:00s 0 - -Rule Russia 1985 1991 - Mar lastSun 2:00s 1:00 S -# -Rule Russia 1992 only - Mar lastSat 23:00 1:00 S -Rule Russia 1992 only - Sep lastSat 23:00 0 - -Rule Russia 1993 2010 - Mar lastSun 2:00s 1:00 S -Rule Russia 1993 1995 - Sep lastSun 2:00s 0 - +# Act No. 967 of the Council of Ministers of the USSR (1984-09-13), repeated in +# Act No. 227 of the Council of Ministers of the USSR (1989-03-14): +Rule Russia 1984 1995 - Sep lastSun 2:00s 0 - +Rule Russia 1985 2010 - Mar lastSun 2:00s 1:00 S +# Rule Russia 1996 2010 - Oct lastSun 2:00s 0 - +# As described below, Russia's 2014 change affects Zone data, not Rule data. + +# From Stepan Golosunov (2016-03-07): +# Wikipedia and other sources refer to the Act of the Council of +# Ministers of the USSR from 1988-01-04 No. 5 and the Act of the +# Council of Ministers of the USSR from 1989-03-14 No. 227. +# +# I did not find full texts of these acts. For the 1989 one we have +# title at http://base.garant.ru/70754136/ : +# "About change in calculation of time on the territories of +# Lithuanian SSR, Latvian SSR and Estonian SSR, Astrakhan, +# Kaliningrad, Kirov, Kuybyshev, Ulyanovsk and Uralsk oblasts". +# And http://astrozet.net/files/Zones/DOC/RU/1980-925.txt appears to +# contain quotes from both acts: Since last Sunday of March 1988 rules +# of the second time belt are installed in Volgograd and Saratov +# oblasts. Since last Sunday of March 1989: +# a) Lithuanian SSR, Latvian SSR, Estonian SSR, Kaliningrad oblast: +# second time belt rules without extra hour (Moscow-1); +# b) Astrakhan, Kirov, Kuybyshev, Ulyanovsk oblasts: second time belt +# rules (Moscow time) +# c) Uralsk oblast: third time belt rules (Moscow+1). + +# From Stepan Golosunov (2016-03-27): +# Unamended version of the act of the +# Government of the Russian Federation No. 23 from 08.01.1992 +# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102014034&rdk=0 +# says that every year clocks were to be moved forward on last Sunday +# of March at 2 hours and moved backwards on last Sunday of September +# at 3 hours. It was amended in 1996 to replace September with October. # From Alexander Krivenyshev (2011-06-14): # According to Kremlin press service, Russian President Dmitry Medvedev @@ -669,7 +737,7 @@ Zone Europe/Tirane 1:19:20 - LMT 1914 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Andorra 0:06:04 - LMT 1901 0:00 - WET 1946 Sep 30 - 1:00 - CET 1985 Mar 31 2:00 + 1:00 - CET 1985 Mar 31 2:00 1:00 EU CE%sT # Austria @@ -695,14 +763,22 @@ Rule Austria 1980 only - Sep 28 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Vienna 1:05:21 - LMT 1893 Apr 1:00 C-Eur CE%sT 1920 - 1:00 Austria CE%sT 1940 Apr 1 2:00s - 1:00 C-Eur CE%sT 1945 Apr 2 2:00s - 1:00 1:00 CEST 1945 Apr 12 2:00s + 1:00 Austria CE%sT 1940 Apr 1 2:00s + 1:00 C-Eur CE%sT 1945 Apr 2 2:00s + 1:00 1:00 CEST 1945 Apr 12 2:00s 1:00 - CET 1946 1:00 Austria CE%sT 1981 1:00 EU CE%sT # Belarus +# +# From Stepan Golosunov (2016-07-02): +# http://www.lawbelarus.com/repub/sub30/texf9611.htm +# (Act of the Cabinet of Ministers of the Republic of Belarus from +# 1992-03-25 No. 157) ... says clocks were to be moved forward at 2:00 +# on last Sunday of March and backward at 3:00 on last Sunday of September +# (the same as previous USSR and contemporary Russian regulations). +# # From Yauhen Kharuzhy (2011-09-16): # By latest Belarus government act Europe/Minsk timezone was changed to # GMT+3 without DST (was GMT+2 with DST). @@ -711,19 +787,21 @@ Zone Europe/Vienna 1:05:21 - LMT 1893 Apr # http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html # http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/ # http://news.tut.by/society/250578.html +# +# From Alexander Bokovoy (2014-10-09): +# Belarussian government decided against changing to winter time.... +# http://eng.belta.by/all_news/society/Belarus-decides-against-adjusting-time-in-Russias-wake_i_76335.html +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Minsk 1:50:16 - LMT 1880 - 1:50 - MMT 1924 May 2 # Minsk Mean Time + 1:50 - MMT 1924 May 2 # Minsk Mean Time 2:00 - EET 1930 Jun 21 3:00 - MSK 1941 Jun 28 1:00 C-Eur CE%sT 1944 Jul 3 3:00 Russia MSK/MSD 1990 - 3:00 - MSK 1991 Mar 31 2:00s - 2:00 1:00 EEST 1991 Sep 29 2:00s - 2:00 - EET 1992 Mar 29 0:00s - 2:00 1:00 EEST 1992 Sep 27 0:00s - 2:00 Russia EE%sT 2011 Mar 27 2:00s - 3:00 - FET + 3:00 - MSK 1991 Mar 31 2:00s + 2:00 Russia EE%sT 2011 Mar 27 2:00s + 3:00 - +03 # Belgium # @@ -780,7 +858,7 @@ Rule Belgium 1946 only - May 19 2:00s 1:00 S Rule Belgium 1946 only - Oct 7 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Brussels 0:17:30 - LMT 1880 - 0:17:30 - BMT 1892 May 1 12:00 # Brussels MT + 0:17:30 - BMT 1892 May 1 12:00 # Brussels MT 0:00 - WET 1914 Nov 8 1:00 - CET 1916 May 1 0:00 1:00 C-Eur CE%sT 1918 Nov 11 11:00u @@ -795,7 +873,7 @@ Zone Europe/Brussels 0:17:30 - LMT 1880 # Bulgaria # # From Plamen Simenov via Steffen Thorsen (1999-09-09): -# A document of Government of Bulgaria (No.94/1997) says: +# A document of Government of Bulgaria (No. 94/1997) says: # EET -> EETDST is in 03:00 Local time in last Sunday of March ... # EETDST -> EET is in 04:00 Local time in last Sunday of October # @@ -810,9 +888,9 @@ Zone Europe/Sofia 1:33:16 - LMT 1880 1:56:56 - IMT 1894 Nov 30 # Istanbul MT? 2:00 - EET 1942 Nov 2 3:00 1:00 C-Eur CE%sT 1945 - 1:00 - CET 1945 Apr 2 3:00 + 1:00 - CET 1945 Apr 2 3:00 2:00 - EET 1979 Mar 31 23:00 - 2:00 Bulg EE%sT 1982 Sep 26 2:00 + 2:00 Bulg EE%sT 1982 Sep 26 3:00 2:00 C-Eur EE%sT 1991 2:00 E-Eur EE%sT 1997 2:00 EU EE%sT @@ -834,8 +912,8 @@ Rule Czech 1948 only - Apr 18 2:00s 1:00 S Rule Czech 1949 only - Apr 9 2:00s 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Prague 0:57:44 - LMT 1850 - 0:57:44 - PMT 1891 Oct # Prague Mean Time - 1:00 C-Eur CE%sT 1944 Sep 17 2:00s + 0:57:44 - PMT 1891 Oct # Prague Mean Time + 1:00 C-Eur CE%sT 1944 Sep 17 2:00s 1:00 Czech CE%sT 1979 1:00 EU CE%sT # Use Europe/Prague also for Slovakia. @@ -891,11 +969,11 @@ Rule Denmark 1948 only - Aug 8 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Copenhagen 0:50:20 - LMT 1890 0:50:20 - CMT 1894 Jan 1 # Copenhagen MT - 1:00 Denmark CE%sT 1942 Nov 2 2:00s - 1:00 C-Eur CE%sT 1945 Apr 2 2:00 + 1:00 Denmark CE%sT 1942 Nov 2 2:00s + 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Denmark CE%sT 1980 1:00 EU CE%sT -Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Tórshavn +Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Tórshavn 0:00 - WET 1981 0:00 EU WE%sT # @@ -969,6 +1047,12 @@ Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Tórshavn # startkart.no says Thule does not observe DST, but this is clearly an error, # so go with Shanks & Pottenger for Thule transitions until this year. # For 2007 on assume Thule will stay in sync with US DST rules. + +# From J William Piggott (2016-02-20): +# "Greenland north of the community of Scoresbysund" is officially named +# "National Park" by Executive Order: +# http://naalakkersuisut.gl/~/media/Nanoq/Files/Attached%20Files/Engelske-tekster/Legislation/Executive%20Order%20National%20Park.rtf +# It is their only National Park. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Thule 1991 1992 - Mar lastSun 2:00 1:00 D @@ -980,20 +1064,24 @@ Rule Thule 2007 max - Nov Sun>=1 2:00 0 S # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Danmarkshavn -1:14:40 - LMT 1916 Jul 28 - -3:00 - WGT 1980 Apr 6 2:00 + -3:00 - WGT 1980 Apr 6 2:00 -3:00 EU WG%sT 1996 0:00 - GMT Zone America/Scoresbysund -1:27:52 - LMT 1916 Jul 28 # Ittoqqortoormiit - -2:00 - CGT 1980 Apr 6 2:00 + -2:00 - CGT 1980 Apr 6 2:00 -2:00 C-Eur CG%sT 1981 Mar 29 -1:00 EU EG%sT Zone America/Godthab -3:26:56 - LMT 1916 Jul 28 # Nuuk - -3:00 - WGT 1980 Apr 6 2:00 + -3:00 - WGT 1980 Apr 6 2:00 -3:00 EU WG%sT Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base -4:00 Thule A%sT # Estonia +# +# From Paul Eggert (2016-03-18): +# The 1989 transition is from USSR act No. 227 (1989-03-14). +# # From Peter Ilieve (1994-10-15): # A relative in Tallinn confirms the accuracy of the data for 1989 onwards # [through 1994] and gives the legal authority for it, @@ -1011,7 +1099,7 @@ Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base # From Peter Ilieve (1998-11-04), heavily edited: # The 1998-09-22 Estonian time law -# <http://trip.rk.ee/cgi-bin/thw?${BASE}=akt&${OOHTML}=rtd&TA=1998&TO=1&AN=1390> +# http://trip.rk.ee/cgi-bin/thw?${BASE}=akt&${OOHTML}=rtd&TA=1998&TO=1&AN=1390 # refers to the Eighth Directive and cites the association agreement between # the EU and Estonia, ratified by the Estonian law (RT II 1995, 22-27, 120). # @@ -1029,8 +1117,8 @@ Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base # after that. # From Mart Oruaas (2000-01-29): -# Regulation no. 301 (1999-10-12) obsoletes previous regulation -# no. 206 (1998-09-22) and thus sticks Estonia to +02:00 GMT for all +# Regulation No. 301 (1999-10-12) obsoletes previous regulation +# No. 206 (1998-09-22) and thus sticks Estonia to +02:00 GMT for all # the year round. The regulation is effective 1999-11-01. # From Toomas Soome (2002-02-21): @@ -1042,16 +1130,16 @@ Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Tallinn 1:39:00 - LMT 1880 - 1:39:00 - TMT 1918 Feb # Tallinn Mean Time + 1:39:00 - TMT 1918 Feb # Tallinn Mean Time 1:00 C-Eur CE%sT 1919 Jul 1:39:00 - TMT 1921 May 2:00 - EET 1940 Aug 6 3:00 - MSK 1941 Sep 15 1:00 C-Eur CE%sT 1944 Sep 22 - 3:00 Russia MSK/MSD 1989 Mar 26 2:00s - 2:00 1:00 EEST 1989 Sep 24 2:00s + 3:00 Russia MSK/MSD 1989 Mar 26 2:00s + 2:00 1:00 EEST 1989 Sep 24 2:00s 2:00 C-Eur EE%sT 1998 Sep 22 - 2:00 EU EE%sT 1999 Nov 1 + 2:00 EU EE%sT 1999 Oct 31 4:00 2:00 - EET 2002 Feb 21 2:00 EU EE%sT @@ -1195,7 +1283,7 @@ Rule France 1976 only - Sep 26 1:00 0 - # on PMT-0:09:21 until 1978-08-09, when the time base finally switched to UTC. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01 - 0:09:21 - PMT 1911 Mar 11 0:01 # Paris MT + 0:09:21 - PMT 1911 Mar 11 0:01 # Paris MT # Shanks & Pottenger give 1940 Jun 14 0:00; go with Excoffier and Le Corre. 0:00 France WE%sT 1940 Jun 14 23:00 # Le Corre says Paris stuck with occupied-France time after the liberation; @@ -1214,14 +1302,14 @@ Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01 # From Jörg Schilling (2002-10-23): # In 1945, Berlin was switched to Moscow Summer time (GMT+4) by -# <http://www.dhm.de/lemo/html/biografien/BersarinNikolai/> +# http://www.dhm.de/lemo/html/biografien/BersarinNikolai/ # General [Nikolai] Bersarin. # From Paul Eggert (2003-03-08): # http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf # says that Bersarin issued an order to use Moscow time on May 20. # However, Moscow did not observe daylight saving in 1945, so -# this was equivalent to CEMT (GMT+3), not GMT+4. +# this was equivalent to UT +03, not +04. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -1243,7 +1331,7 @@ Rule SovietZone 1945 only - Nov 18 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Berlin 0:53:28 - LMT 1893 Apr - 1:00 C-Eur CE%sT 1945 May 24 2:00 + 1:00 C-Eur CE%sT 1945 May 24 2:00 1:00 SovietZone CE%sT 1946 1:00 Germany CE%sT 1980 1:00 EU CE%sT @@ -1259,7 +1347,7 @@ Zone Europe/Berlin 0:53:28 - LMT 1893 Apr # http://www.srf.ch/player/video?id=c012c029-03b7-4c2b-9164-aa5902cd58d3 # From Arthur David Olson (2012-03-03): -# Busingen and Zurich have shared clocks since 1970. +# Büsingen and Zurich have shared clocks since 1970. Link Europe/Zurich Europe/Busingen @@ -1270,8 +1358,8 @@ Link Europe/Zurich Europe/Busingen # Gibraltar # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00s - 0:00 GB-Eire %s 1957 Apr 14 2:00 +Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00s + 0:00 GB-Eire %s 1957 Apr 14 2:00 1:00 - CET 1982 1:00 EU CE%sT @@ -1302,7 +1390,7 @@ Rule Greece 1980 only - Apr 1 0:00 1:00 S Rule Greece 1980 only - Sep 28 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Athens 1:34:52 - LMT 1895 Sep 14 - 1:34:52 - AMT 1916 Jul 28 0:01 # Athens MT + 1:34:52 - AMT 1916 Jul 28 0:01 # Athens MT 2:00 Greece EE%sT 1941 Apr 30 1:00 Greece CE%sT 1944 Apr 4 2:00 Greece EE%sT 1981 @@ -1374,36 +1462,33 @@ Zone Europe/Budapest 1:16:20 - LMT 1890 Oct # might be a reference to the Julian calendar as opposed to Gregorian, or it # might mean something else (???). # -# From Paul Eggert (2006-03-22): -# The Iceland Almanak, Shanks & Pottenger, and Whitman disagree on many points. -# We go with the Almanak, except for one claim from Shanks & Pottenger, namely -# that Reykavik was 21W57 from 1837 to 1908, local mean time before that. +# From Paul Eggert (2014-11-22): +# The information below is taken from the 1988 Almanak; see +# http://www.almanak.hi.is/klukkan.html # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Iceland 1917 1918 - Feb 19 23:00 1:00 S +Rule Iceland 1917 1919 - Feb 19 23:00 1:00 S Rule Iceland 1917 only - Oct 21 1:00 0 - -Rule Iceland 1918 only - Nov 16 1:00 0 - +Rule Iceland 1918 1919 - Nov 16 1:00 0 - +Rule Iceland 1921 only - Mar 19 23:00 1:00 S +Rule Iceland 1921 only - Jun 23 1:00 0 - Rule Iceland 1939 only - Apr 29 23:00 1:00 S -Rule Iceland 1939 only - Nov 29 2:00 0 - +Rule Iceland 1939 only - Oct 29 2:00 0 - Rule Iceland 1940 only - Feb 25 2:00 1:00 S -Rule Iceland 1940 only - Nov 3 2:00 0 - -Rule Iceland 1941 only - Mar 2 1:00s 1:00 S -Rule Iceland 1941 only - Nov 2 1:00s 0 - -Rule Iceland 1942 only - Mar 8 1:00s 1:00 S -Rule Iceland 1942 only - Oct 25 1:00s 0 - +Rule Iceland 1940 1941 - Nov Sun>=2 1:00s 0 - +Rule Iceland 1941 1942 - Mar Sun>=2 1:00s 1:00 S # 1943-1946 - first Sunday in March until first Sunday in winter Rule Iceland 1943 1946 - Mar Sun>=1 1:00s 1:00 S -Rule Iceland 1943 1948 - Oct Sun>=22 1:00s 0 - +Rule Iceland 1942 1948 - Oct Sun>=22 1:00s 0 - # 1947-1967 - first Sunday in April until first Sunday in winter Rule Iceland 1947 1967 - Apr Sun>=1 1:00s 1:00 S -# 1949 Oct transition delayed by 1 week +# 1949 and 1967 Oct transitions delayed by 1 week Rule Iceland 1949 only - Oct 30 1:00s 0 - Rule Iceland 1950 1966 - Oct Sun>=22 1:00s 0 - Rule Iceland 1967 only - Oct 29 1:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Atlantic/Reykjavik -1:27:24 - LMT 1837 - -1:27:48 - RMT 1908 # Reykjavik Mean Time? - -1:00 Iceland IS%sT 1968 Apr 7 1:00s +Zone Atlantic/Reykjavik -1:28 - LMT 1908 + -1:00 Iceland IS%sT 1968 Apr 7 1:00s 0:00 - GMT # Italy @@ -1415,73 +1500,84 @@ Zone Atlantic/Reykjavik -1:27:24 - LMT 1837 # But these events all occurred before the 1970 cutoff, # so record only the time in Rome. # -# From Paul Eggert (2006-03-22): -# For Italian DST we have three sources: Shanks & Pottenger, Whitman, and -# F. Pollastri -# Day-light Saving Time in Italy (2006-02-03) -# <http://toi.iriti.cnr.it/uk/ienitlt.html> -# ('FP' below), taken from an Italian National Electrotechnical Institute -# publication. When the three sources disagree, guess who's right, as follows: -# -# year FP Shanks&P. (S) Whitman (W) Go with: -# 1916 06-03 06-03 24:00 06-03 00:00 FP & W -# 09-30 09-30 24:00 09-30 01:00 FP; guess 24:00s -# 1917 04-01 03-31 24:00 03-31 00:00 FP & S -# 09-30 09-29 24:00 09-30 01:00 FP & W -# 1918 03-09 03-09 24:00 03-09 00:00 FP & S -# 10-06 10-05 24:00 10-06 01:00 FP & W -# 1919 03-01 03-01 24:00 03-01 00:00 FP & S -# 10-04 10-04 24:00 10-04 01:00 FP; guess 24:00s -# 1920 03-20 03-20 24:00 03-20 00:00 FP & S -# 09-18 09-18 24:00 10-01 01:00 FP; guess 24:00s -# 1944 04-02 04-03 02:00 S (see C-Eur) -# 09-16 10-02 03:00 FP; guess 24:00s -# 1945 09-14 09-16 24:00 FP; guess 24:00s -# 1970 05-21 05-31 00:00 S -# 09-20 09-27 00:00 S +# From Michael Deckers (2016-10-24): +# http://www.ac-ilsestante.it/MERIDIANE/ora_legale quotes a law of 1893-08-10 +# ... [translated as] "The preceding dispositions will enter into +# force at the instant at which, according to the time specified in +# the 1st article, the 1st of November 1893 will begin...." +# +# From Pierpaolo Bernardi (2016-10-20): +# The authoritative source for time in Italy is the national metrological +# institute, which has a summary page of historical DST data at +# http://www.inrim.it/res/tf/ora_legale_i.shtml +# (2016-10-24): +# http://www.renzobaldini.it/le-ore-legali-in-italia/ +# has still different data for 1944. It divides Italy in two, as +# there were effectively two governments at the time, north of Gothic +# Line German controlled territory, official government RSI, and south +# of the Gothic Line, controlled by allied armies. +# +# From Brian Inglis (2016-10-23): +# Viceregal LEGISLATIVE DECREE. 14 September 1944, no. 219. +# Restoration of Standard Time. (044U0219) (OJ 62 of 30.9.1944) ... +# Given the R. law decreed on 1944-03-29, no. 92, by which standard time is +# advanced to sixty minutes later starting at hour two on 1944-04-02; ... +# Starting at hour three on the date 1944-09-17 standard time will be resumed. +# +# From Paul Eggert (2016-10-27): +# Go with INRiM for DST rules, except as corrected by Inglis for 1944 +# for the Kingdom of Italy. This is consistent with Renzo Baldini. +# Model Rome's occupation by using using C-Eur rules from 1943-09-10 +# to 1944-06-04; although Rome was an open city during this period, it +# was effectively controlled by Germany. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Italy 1916 only - Jun 3 0:00s 1:00 S -Rule Italy 1916 only - Oct 1 0:00s 0 - -Rule Italy 1917 only - Apr 1 0:00s 1:00 S -Rule Italy 1917 only - Sep 30 0:00s 0 - -Rule Italy 1918 only - Mar 10 0:00s 1:00 S -Rule Italy 1918 1919 - Oct Sun>=1 0:00s 0 - -Rule Italy 1919 only - Mar 2 0:00s 1:00 S -Rule Italy 1920 only - Mar 21 0:00s 1:00 S -Rule Italy 1920 only - Sep 19 0:00s 0 - -Rule Italy 1940 only - Jun 15 0:00s 1:00 S -Rule Italy 1944 only - Sep 17 0:00s 0 - -Rule Italy 1945 only - Apr 2 2:00 1:00 S -Rule Italy 1945 only - Sep 15 0:00s 0 - -Rule Italy 1946 only - Mar 17 2:00s 1:00 S -Rule Italy 1946 only - Oct 6 2:00s 0 - -Rule Italy 1947 only - Mar 16 0:00s 1:00 S -Rule Italy 1947 only - Oct 5 0:00s 0 - -Rule Italy 1948 only - Feb 29 2:00s 1:00 S -Rule Italy 1948 only - Oct 3 2:00s 0 - -Rule Italy 1966 1968 - May Sun>=22 0:00 1:00 S -Rule Italy 1966 1969 - Sep Sun>=22 0:00 0 - -Rule Italy 1969 only - Jun 1 0:00 1:00 S -Rule Italy 1970 only - May 31 0:00 1:00 S -Rule Italy 1970 only - Sep lastSun 0:00 0 - -Rule Italy 1971 1972 - May Sun>=22 0:00 1:00 S -Rule Italy 1971 only - Sep lastSun 1:00 0 - -Rule Italy 1972 only - Oct 1 0:00 0 - -Rule Italy 1973 only - Jun 3 0:00 1:00 S -Rule Italy 1973 1974 - Sep lastSun 0:00 0 - -Rule Italy 1974 only - May 26 0:00 1:00 S -Rule Italy 1975 only - Jun 1 0:00s 1:00 S -Rule Italy 1975 1977 - Sep lastSun 0:00s 0 - -Rule Italy 1976 only - May 30 0:00s 1:00 S -Rule Italy 1977 1979 - May Sun>=22 0:00s 1:00 S -Rule Italy 1978 only - Oct 1 0:00s 0 - -Rule Italy 1979 only - Sep 30 0:00s 0 - +Rule Italy 1916 only - Jun 3 24:00 1:00 S +Rule Italy 1916 1917 - Sep 30 24:00 0 - +Rule Italy 1917 only - Mar 31 24:00 1:00 S +Rule Italy 1918 only - Mar 9 24:00 1:00 S +Rule Italy 1918 only - Oct 6 24:00 0 - +Rule Italy 1919 only - Mar 1 24:00 1:00 S +Rule Italy 1919 only - Oct 4 24:00 0 - +Rule Italy 1920 only - Mar 20 24:00 1:00 S +Rule Italy 1920 only - Sep 18 24:00 0 - +Rule Italy 1940 only - Jun 14 24:00 1:00 S +Rule Italy 1942 only - Nov 2 2:00s 0 - +Rule Italy 1943 only - Mar 29 2:00s 1:00 S +Rule Italy 1943 only - Oct 4 2:00s 0 - +Rule Italy 1944 only - Apr 2 2:00s 1:00 S +Rule Italy 1944 only - Sep 17 2:00s 0 - +Rule Italy 1945 only - Apr 2 2:00 1:00 S +Rule Italy 1945 only - Sep 15 1:00 0 - +Rule Italy 1946 only - Mar 17 2:00s 1:00 S +Rule Italy 1946 only - Oct 6 2:00s 0 - +Rule Italy 1947 only - Mar 16 0:00s 1:00 S +Rule Italy 1947 only - Oct 5 0:00s 0 - +Rule Italy 1948 only - Feb 29 2:00s 1:00 S +Rule Italy 1948 only - Oct 3 2:00s 0 - +Rule Italy 1966 1968 - May Sun>=22 0:00s 1:00 S +Rule Italy 1966 only - Sep 24 24:00 0 - +Rule Italy 1967 1969 - Sep Sun>=22 0:00s 0 - +Rule Italy 1969 only - Jun 1 0:00s 1:00 S +Rule Italy 1970 only - May 31 0:00s 1:00 S +Rule Italy 1970 only - Sep lastSun 0:00s 0 - +Rule Italy 1971 1972 - May Sun>=22 0:00s 1:00 S +Rule Italy 1971 only - Sep lastSun 0:00s 0 - +Rule Italy 1972 only - Oct 1 0:00s 0 - +Rule Italy 1973 only - Jun 3 0:00s 1:00 S +Rule Italy 1973 1974 - Sep lastSun 0:00s 0 - +Rule Italy 1974 only - May 26 0:00s 1:00 S +Rule Italy 1975 only - Jun 1 0:00s 1:00 S +Rule Italy 1975 1977 - Sep lastSun 0:00s 0 - +Rule Italy 1976 only - May 30 0:00s 1:00 S +Rule Italy 1977 1979 - May Sun>=22 0:00s 1:00 S +Rule Italy 1978 only - Oct 1 0:00s 0 - +Rule Italy 1979 only - Sep 30 0:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Rome 0:49:56 - LMT 1866 Sep 22 - 0:49:56 - RMT 1893 Nov 1 0:00s # Rome Mean - 1:00 Italy CE%sT 1942 Nov 2 2:00s - 1:00 C-Eur CE%sT 1944 Jul + 0:49:56 - RMT 1893 Oct 31 23:49:56 # Rome Mean + 1:00 Italy CE%sT 1943 Sep 10 + 1:00 C-Eur CE%sT 1944 Jun 4 1:00 Italy CE%sT 1980 1:00 EU CE%sT @@ -1497,21 +1593,21 @@ Link Europe/Rome Europe/San_Marino # correct data in juridical acts and I found some juridical documents about # changes in the counting of time in Latvia from 1981.... # -# Act No.35 of the Council of Ministers of Latvian SSR of 1981-01-22 ... -# according to the Act No.925 of the Council of Ministers of USSR of 1980-10-24 +# Act No. 35 of the Council of Ministers of Latvian SSR of 1981-01-22 ... +# according to the Act No. 925 of the Council of Ministers of USSR of 1980-10-24 # ...: all year round the time of 2nd time zone + 1 hour, in addition turning # the hands of the clock 1 hour forward on 1 April at 00:00 (GMT 31 March 21:00) # and 1 hour backward on the 1 October at 00:00 (GMT 30 September 20:00). # -# Act No.592 of the Council of Ministers of Latvian SSR of 1984-09-24 ... -# according to the Act No.967 of the Council of Ministers of USSR of 1984-09-13 +# Act No. 592 of the Council of Ministers of Latvian SSR of 1984-09-24 ... +# according to the Act No. 967 of the Council of Ministers of USSR of 1984-09-13 # ...: all year round the time of 2nd time zone + 1 hour, in addition turning # the hands of the clock 1 hour forward on the last Sunday of March at 02:00 # (GMT 23:00 on the previous day) and 1 hour backward on the last Sunday of # September at 03:00 (GMT 23:00 on the previous day). # -# Act No.81 of the Council of Ministers of Latvian SSR of 1989-03-22 ... -# according to the Act No.227 of the Council of Ministers of USSR of 1989-03-14 +# Act No. 81 of the Council of Ministers of Latvian SSR of 1989-03-22 ... +# according to the Act No. 227 of the Council of Ministers of USSR of 1989-03-14 # ...: since the last Sunday of March 1989 in Lithuanian SSR, Latvian SSR, # Estonian SSR and Kaliningrad region of Russian Federation all year round the # time of 2nd time zone (Moscow time minus one hour). On the territory of Latvia @@ -1528,17 +1624,17 @@ Link Europe/Rome Europe/San_Marino # From Andrei Ivanov (2000-03-06): # This year Latvia will not switch to Daylight Savings Time (as specified in # The Regulations of the Cabinet of Ministers of the Rep. of Latvia of -# 29-Feb-2000 (#79) <http://www.lv-laiks.lv/wwwraksti/2000/071072/vd4.htm>, +# 29-Feb-2000 (No. 79) <http://www.lv-laiks.lv/wwwraksti/2000/071072/vd4.htm>, # in Latvian for subscribers only). # From RFE/RL Newsline -# <http://www.rferl.org/newsline/2001/01/3-CEE/cee-030101.html> +# http://www.rferl.org/newsline/2001/01/3-CEE/cee-030101.html # (2001-01-03), noted after a heads-up by Rives McDow: # The Latvian government on 2 January decided that the country will # institute daylight-saving time this spring, LETA reported. # Last February the three Baltic states decided not to turn back their # clocks one hour in the spring.... -# Minister of Economy Aigars Kalvitis noted that Latvia had too few +# Minister of Economy Aigars Kalvītis noted that Latvia had too few # daylight hours and thus decided to comply with a draft European # Commission directive that provides for instituting daylight-saving # time in EU countries between 2002 and 2006. The Latvian government @@ -1549,20 +1645,22 @@ Link Europe/Rome Europe/San_Marino Rule Latvia 1989 1996 - Mar lastSun 2:00s 1:00 S Rule Latvia 1989 1996 - Sep lastSun 2:00s 0 - -# Milne says Riga time was 1:36:28 (Polytechnique House time). +# Milne 1899 says Riga was 1:36:28 (Polytechnique House time). +# Byalokoz 1919 says Latvia was 1:36:34. +# Go with Byalokoz. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Europe/Riga 1:36:28 - LMT 1880 - 1:36:28 - RMT 1918 Apr 15 2:00 #Riga Mean Time - 1:36:28 1:00 LST 1918 Sep 16 3:00 #Latvian Summer - 1:36:28 - RMT 1919 Apr 1 2:00 - 1:36:28 1:00 LST 1919 May 22 3:00 - 1:36:28 - RMT 1926 May 11 +Zone Europe/Riga 1:36:34 - LMT 1880 + 1:36:34 - RMT 1918 Apr 15 2:00 # Riga MT + 1:36:34 1:00 LST 1918 Sep 16 3:00 # Latvian ST + 1:36:34 - RMT 1919 Apr 1 2:00 + 1:36:34 1:00 LST 1919 May 22 3:00 + 1:36:34 - RMT 1926 May 11 2:00 - EET 1940 Aug 5 3:00 - MSK 1941 Jul 1:00 C-Eur CE%sT 1944 Oct 13 - 3:00 Russia MSK/MSD 1989 Mar lastSun 2:00s - 2:00 1:00 EEST 1989 Sep lastSun 2:00s + 3:00 Russia MSK/MSD 1989 Mar lastSun 2:00s + 2:00 1:00 EEST 1989 Sep lastSun 2:00s 2:00 Latvia EE%sT 1997 Jan 21 2:00 EU EE%sT 2000 Feb 29 2:00 - EET 2001 Jan 2 @@ -1588,6 +1686,9 @@ Link Europe/Zurich Europe/Vaduz # Lithuania +# From Paul Eggert (2016-03-18): +# The 1989 transition is from USSR act No. 227 (1989-03-14). + # From Paul Eggert (1996-11-22): # IATA SSIM (1992/1996) says Lithuania uses W-Eur rules, but since it is # known to be wrong about Estonia and Latvia, assume it's wrong here too. @@ -1620,18 +1721,18 @@ Link Europe/Zurich Europe/Vaduz # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Vilnius 1:41:16 - LMT 1880 - 1:24:00 - WMT 1917 # Warsaw Mean Time + 1:24:00 - WMT 1917 # Warsaw Mean Time 1:35:36 - KMT 1919 Oct 10 # Kaunas Mean Time 1:00 - CET 1920 Jul 12 2:00 - EET 1920 Oct 9 1:00 - CET 1940 Aug 3 3:00 - MSK 1941 Jun 24 1:00 C-Eur CE%sT 1944 Aug - 3:00 Russia MSK/MSD 1991 Mar 31 2:00s - 2:00 1:00 EEST 1991 Sep 29 2:00s + 3:00 Russia MSK/MSD 1989 Mar 26 2:00s + 2:00 Russia EE%sT 1991 Sep 29 2:00s 2:00 C-Eur EE%sT 1998 - 2:00 - EET 1998 Mar 29 1:00u - 1:00 EU CE%sT 1999 Oct 31 1:00u + 2:00 - EET 1998 Mar 29 1:00u + 1:00 EU CE%sT 1999 Oct 31 1:00u 2:00 - EET 2003 Jan 1 2:00 EU EE%sT @@ -1665,9 +1766,9 @@ Rule Lux 1929 only - Apr 20 23:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Luxembourg 0:24:36 - LMT 1904 Jun 1:00 Lux CE%sT 1918 Nov 25 - 0:00 Lux WE%sT 1929 Oct 6 2:00s - 0:00 Belgium WE%sT 1940 May 14 3:00 - 1:00 C-Eur WE%sT 1944 Sep 18 3:00 + 0:00 Lux WE%sT 1929 Oct 6 2:00s + 0:00 Belgium WE%sT 1940 May 14 3:00 + 1:00 C-Eur WE%sT 1944 Sep 18 3:00 1:00 Belgium CE%sT 1977 1:00 EU CE%sT @@ -1675,6 +1776,10 @@ Zone Europe/Luxembourg 0:24:36 - LMT 1904 Jun # See Europe/Belgrade. # Malta +# +# From Paul Eggert (2016-10-21): +# Assume 1900-1972 was like Rome, overriding Shanks. +# # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Malta 1973 only - Mar 31 0:00s 1:00 S Rule Malta 1973 only - Sep 29 0:00s 0 - @@ -1684,15 +1789,23 @@ Rule Malta 1975 1979 - Apr Sun>=15 2:00 1:00 S Rule Malta 1975 1980 - Sep Sun>=15 2:00 0 - Rule Malta 1980 only - Mar 31 2:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta - 1:00 Italy CE%sT 1942 Nov 2 2:00s - 1:00 C-Eur CE%sT 1945 Apr 2 2:00s +Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta 1:00 Italy CE%sT 1973 Mar 31 1:00 Malta CE%sT 1981 1:00 EU CE%sT # Moldova +# From Stepan Golosunov (2016-03-07): +# the act of the government of the Republic of Moldova Nr. 132 from 1990-05-04 +# http://lex.justice.md/viewdoc.php?action=view&view=doc&id=298782&lang=2 +# ... says that since 1990-05-06 on the territory of the Moldavian SSR +# time would be calculated as the standard time of the second time belt +# plus one hour of the "summer" time. To implement that clocks would be +# adjusted one hour backwards at 1990-05-06 2:00. After that "summer" +# time would be cancelled last Sunday of September at 3:00 and +# reintroduced last Sunday of March at 2:00. + # From Paul Eggert (2006-03-22): # A previous version of this database followed Shanks & Pottenger, who write # that Tiraspol switched to Moscow time on 1992-01-19 at 02:00. @@ -1731,6 +1844,18 @@ Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta # News from Moldova (in russian): # http://ru.publika.md/link_317061.html +# From Roman Tudos (2015-07-02): +# http://lex.justice.md/index.php?action=view&view=doc&lang=1&id=355077 +# From Paul Eggert (2015-07-01): +# The abovementioned official link to IGO1445-868/2014 states that +# 2014-10-26's fallback transition occurred at 03:00 local time. Also, +# http://www.trm.md/en/social/la-30-martie-vom-trece-la-ora-de-vara +# says the 2014-03-30 spring-forward transition was at 02:00 local time. +# Guess that since 1997 Moldova has switched one hour before the EU. + +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule Moldova 1997 max - Mar lastSun 2:00 1:00 S +Rule Moldova 1997 max - Oct lastSun 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Chisinau 1:55:20 - LMT 1880 @@ -1739,21 +1864,19 @@ Zone Europe/Chisinau 1:55:20 - LMT 1880 2:00 Romania EE%sT 1940 Aug 15 2:00 1:00 EEST 1941 Jul 17 1:00 C-Eur CE%sT 1944 Aug 24 - 3:00 Russia MSK/MSD 1990 - 3:00 - MSK 1990 May 6 - 2:00 - EET 1991 + 3:00 Russia MSK/MSD 1990 May 6 2:00 2:00 Russia EE%sT 1992 2:00 E-Eur EE%sT 1997 # See Romania commentary for the guessed 1997 transition to EU rules. - 2:00 EU EE%sT + 2:00 Moldova EE%sT # Monaco # Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's # more precise 0:09:21. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 - 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time - 0:00 France WE%sT 1945 Sep 16 3:00 + 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time + 0:00 France WE%sT 1945 Sep 16 3:00 1:00 France CE%sT 1977 1:00 EU CE%sT @@ -1797,8 +1920,8 @@ Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 # was not until 1866 when they were all required by law to observe # Amsterdam mean time. -# The data before 1945 are taken from -# <http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm>. +# The data entries before 1945 are taken from +# http://www.staff.science.uu.nl/~gent0113/wettijd/wettijd.htm # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Neth 1916 only - May 1 0:00 1:00 NST # Netherlands Summer Time @@ -1829,8 +1952,8 @@ Rule Neth 1945 only - Sep 16 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Amsterdam 0:19:32 - LMT 1835 0:19:32 Neth %s 1937 Jul 1 - 0:20 Neth NE%sT 1940 May 16 0:00 # Dutch Time - 1:00 C-Eur CE%sT 1945 Apr 2 2:00 + 0:20 Neth NE%sT 1940 May 16 0:00 # Dutch Time + 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Neth CE%sT 1977 1:00 EU CE%sT @@ -1893,7 +2016,7 @@ Zone Europe/Oslo 0:43:00 - LMT 1895 Jan 1 # <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were # expelled on 1942-05-14. However, small parties of Germans did return, # and according to Wilhelm Dege's book "War North of 80" (1954) -# <http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html> +# http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html # the German armed forces at the Svalbard weather station code-named # Haudegen did not surrender to the Allies until September 1945. # @@ -1917,7 +2040,7 @@ Rule Poland 1945 only - Apr 29 0:00 1:00 S Rule Poland 1945 only - Nov 1 0:00 0 - # For 1946 on the source is Kazimierz Borkowski, # Toruń Center for Astronomy, Dept. of Radio Astronomy, Nicolaus Copernicus U., -# <http://www.astro.uni.torun.pl/~kb/Artykuly/U-PA/Czas2.htm#tth_tAb1> +# http://www.astro.uni.torun.pl/~kb/Artykuly/U-PA/Czas2.htm#tth_tAb1 # Thanks to Przemysław Augustyniak (2005-05-28) for this reference. # He also gives these further references: # Mon Pol nr 13, poz 162 (1995) <http://www.abc.com.pl/serwis/mp/1995/0162.htm> @@ -1938,10 +2061,10 @@ Rule Poland 1961 1964 - May lastSun 1:00s 1:00 S Rule Poland 1962 1964 - Sep lastSun 1:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Warsaw 1:24:00 - LMT 1880 - 1:24:00 - WMT 1915 Aug 5 # Warsaw Mean Time - 1:00 C-Eur CE%sT 1918 Sep 16 3:00 + 1:24:00 - WMT 1915 Aug 5 # Warsaw Mean Time + 1:00 C-Eur CE%sT 1918 Sep 16 3:00 2:00 Poland EE%sT 1922 Jun - 1:00 Poland CE%sT 1940 Jun 23 2:00 + 1:00 Poland CE%sT 1940 Jun 23 2:00 1:00 C-Eur CE%sT 1944 Oct 1:00 Poland CE%sT 1977 1:00 W-Eur CE%sT 1988 @@ -1949,6 +2072,14 @@ Zone Europe/Warsaw 1:24:00 - LMT 1880 # Portugal # +# From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne: +# According to a Portuguese decree (1911-05-26) +# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf +# Lisbon was at -0:36:44.68, but switched to GMT on 1912-01-01 at 00:00. +# Round the old offset to -0:36:45. This agrees with Willett but disagrees +# with Shanks, who says the transition occurred on 1911-05-24 at 00:00 for +# Europe/Lisbon, Atlantic/Azores, and Atlantic/Madeira. +# # From Rui Pedro Salgueiro (1992-11-12): # Portugal has recently (September, 27) changed timezone # (from WET to MET or CET) to harmonize with EEC. @@ -2028,28 +2159,27 @@ Rule Port 1979 1982 - Sep lastSun 1:00s 0 - Rule Port 1980 only - Mar lastSun 0:00s 1:00 S Rule Port 1981 1982 - Mar lastSun 1:00s 1:00 S Rule Port 1983 only - Mar lastSun 2:00s 1:00 S +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] -# Shanks & Pottenger say the transition from LMT to WET occurred 1911-05-24; -# Willett says 1912-01-01. Go with Willett. -Zone Europe/Lisbon -0:36:32 - LMT 1884 - -0:36:32 - LMT 1912 Jan 1 # Lisbon Mean Time - 0:00 Port WE%sT 1966 Apr 3 2:00 - 1:00 - CET 1976 Sep 26 1:00 - 0:00 Port WE%sT 1983 Sep 25 1:00s - 0:00 W-Eur WE%sT 1992 Sep 27 1:00s - 1:00 EU CE%sT 1996 Mar 31 1:00u +Zone Europe/Lisbon -0:36:45 - LMT 1884 + -0:36:45 - LMT 1912 Jan 1 # Lisbon Mean Time + 0:00 Port WE%sT 1966 Apr 3 2:00 + 1:00 - CET 1976 Sep 26 1:00 + 0:00 Port WE%sT 1983 Sep 25 1:00s + 0:00 W-Eur WE%sT 1992 Sep 27 1:00s + 1:00 EU CE%sT 1996 Mar 31 1:00u 0:00 EU WE%sT -Zone Atlantic/Azores -1:42:40 - LMT 1884 # Ponta Delgada - -1:54:32 - HMT 1911 May 24 # Horta Mean Time - -2:00 Port AZO%sT 1966 Apr 3 2:00 # Azores Time - -1:00 Port AZO%sT 1983 Sep 25 1:00s - -1:00 W-Eur AZO%sT 1992 Sep 27 1:00s - 0:00 EU WE%sT 1993 Mar 28 1:00u +Zone Atlantic/Azores -1:42:40 - LMT 1884 # Ponta Delgada + -1:54:32 - HMT 1912 Jan 1 # Horta Mean Time + -2:00 Port AZO%sT 1966 Apr 3 2:00 # Azores Time + -1:00 Port AZO%sT 1983 Sep 25 1:00s + -1:00 W-Eur AZO%sT 1992 Sep 27 1:00s + 0:00 EU WE%sT 1993 Mar 28 1:00u -1:00 EU AZO%sT -Zone Atlantic/Madeira -1:07:36 - LMT 1884 # Funchal - -1:07:36 - FMT 1911 May 24 # Funchal Mean Time - -1:00 Port MAD%sT 1966 Apr 3 2:00 # Madeira Time - 0:00 Port WE%sT 1983 Sep 25 1:00s +Zone Atlantic/Madeira -1:07:36 - LMT 1884 # Funchal + -1:07:36 - FMT 1912 Jan 1 # Funchal Mean Time + -1:00 Port MAD%sT 1966 Apr 3 2:00 # Madeira Time + 0:00 Port WE%sT 1983 Sep 25 1:00s 0:00 EU WE%sT # Romania @@ -2073,8 +2203,8 @@ Rule Romania 1991 1993 - Mar lastSun 0:00s 1:00 S Rule Romania 1991 1993 - Sep lastSun 0:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct - 1:44:24 - BMT 1931 Jul 24 # Bucharest MT - 2:00 Romania EE%sT 1981 Mar 29 2:00s + 1:44:24 - BMT 1931 Jul 24 # Bucharest MT + 2:00 Romania EE%sT 1981 Mar 29 2:00s 2:00 C-Eur EE%sT 1991 2:00 Romania EE%sT 1994 2:00 E-Eur EE%sT 1997 @@ -2084,7 +2214,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct # Russia # From Alexander Krivenyshev (2011-09-15): -# Based on last Russian Government Decree # 725 on August 31, 2011 +# Based on last Russian Government Decree No. 725 on August 31, 2011 # (Government document # http://www.government.ru/gov/results/16355/print/ # in Russian) @@ -2094,7 +2224,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct # http://www.worldtimezone.com/dst_news/dst_news_russia36.htm # From Sanjeev Gupta (2011-09-27): -# Scans of [Decree #23 of January 8, 1992] are available at: +# Scans of [Decree No. 23 of January 8, 1992] are available at: # http://government.consultant.ru/page.aspx?1223966 # They are in Cyrillic letters (presumably Russian). @@ -2105,19 +2235,19 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct # One source is # http://government.ru/gov/results/16355/ # which, according to translate.google.com, begins "Decree of August 31, -# 2011 No 725" and contains no other dates or "effective date" information. +# 2011 No. 725" and contains no other dates or "effective date" information. # # Another source is # http://www.rg.ru/2011/09/06/chas-zona-dok.html # which, according to translate.google.com, begins "Resolution of the # Government of the Russian Federation on August 31, 2011 N 725" and also # contains "Date first official publication: September 6, 2011 Posted on: -# in the 'RG' - Federal Issue number 5573 September 6, 2011" but which +# in the 'RG' - Federal Issue No. 5573 September 6, 2011" but which # does not contain any "effective date" information. # # Another source is # http://en.wikipedia.org/wiki/Oymyakonsky_District#cite_note-RuTime-7 -# which, in note 8, contains "Resolution #725 of August 31, 2011... +# which, in note 8, contains "Resolution No. 725 of August 31, 2011... # Effective as of after 7 days following the day of the official publication" # but which does not contain any reference to September 6, 2011. # @@ -2156,7 +2286,6 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct # http://www.worldtimezone.com/dst_news/dst_news_russia-map-2014-07.html # From Paul Eggert (2006-03-22): -# Except for Moscow after 1919-07-01, I invented the time zone abbreviations. # Moscow time zone abbreviations after 1919-07-01, and Moscow rules after 1991, # are from Andrey A. Chernov. The rest is from Shanks & Pottenger, # except we follow Chernov's report that 1992 DST transitions were Sat @@ -2210,73 +2339,179 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct # From Tim Parenti (2014-07-03): # Europe/Kaliningrad covers... -# 39 RU-KGD Kaliningrad Oblast +# 39 RU-KGD Kaliningrad Oblast + +# From Paul Eggert (2016-03-18): +# The 1989 transition is from USSR act No. 227 (1989-03-14). + +# From Stepan Golosunov (2016-03-07): +# http://www.rgo.ru/ru/kaliningradskoe-oblastnoe-otdelenie/ob-otdelenii/publikacii/kak-nam-zhilos-bez-letnego-vremeni +# confirms that the 1989 change to Moscow-1 was implemented. +# (The article, though, is misattributed to 1990 while saying that +# summer->winter transition would be done on the 24 of September. But +# 1990-09-24 was Monday, while 1989-09-24 was Sunday as expected.) +# ... +# http://www.kaliningradka.ru/site_pc/cherez/index.php?ELEMENT_ID=40091 +# says that Kaliningrad switched to Moscow-1 on 1989-03-26, avoided +# at the last moment switch to Moscow-1 on 1991-03-31, switched to +# Moscow on 1991-11-03, switched to Moscow-1 on 1992-01-19. Zone Europe/Kaliningrad 1:22:00 - LMT 1893 Apr 1:00 C-Eur CE%sT 1945 2:00 Poland CE%sT 1946 - 3:00 Russia MSK/MSD 1991 Mar 31 2:00s - 2:00 Russia EE%sT 2011 Mar 27 2:00s - 3:00 - FET 2014 Oct 26 2:00s + 3:00 Russia MSK/MSD 1989 Mar 26 2:00s + 2:00 Russia EE%sT 2011 Mar 27 2:00s + 3:00 - +03 2014 Oct 26 2:00s 2:00 - EET -# From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25): +# From Paul Eggert (2016-02-21), per Tim Parenti (2014-07-03) and +# Oscar van Vlijmen (2001-08-25): # Europe/Moscow covers... -# 01 RU-AD Adygea, Republic of -# 05 RU-DA Dagestan, Republic of -# 06 RU-IN Ingushetia, Republic of -# 07 RU-KB Kabardino-Balkar Republic -# 08 RU-KL Kalmykia, Republic of -# 09 RU-KC Karachay-Cherkess Republic -# 10 RU-KR Karelia, Republic of -# 11 RU-KO Komi Republic -# 12 RU-ME Mari El Republic -# 13 RU-MO Mordovia, Republic of -# 15 RU-SE North Ossetia-Alania, Republic of -# 16 RU-TA Tatarstan, Republic of -# 20 RU-CE Chechen Republic -# 21 RU-CU Chuvash Republic -# 23 RU-KDA Krasnodar Krai -# 26 RU-STA Stavropol Krai -# 29 RU-ARK Arkhangelsk Oblast -# 31 RU-BEL Belgorod Oblast -# 32 RU-BRY Bryansk Oblast -# 33 RU-VLA Vladimir Oblast -# 35 RU-VLG Vologda Oblast -# 36 RU-VOR Voronezh Oblast -# 37 RU-IVA Ivanovo Oblast -# 40 RU-KLU Kaluga Oblast -# 44 RU-KOS Kostroma Oblast -# 46 RU-KRS Kursk Oblast -# 47 RU-LEN Leningrad Oblast -# 48 RU-LIP Lipetsk Oblast -# 50 RU-MOS Moscow Oblast -# 51 RU-MUR Murmansk Oblast -# 52 RU-NIZ Nizhny Novgorod Oblast -# 53 RU-NGR Novgorod Oblast -# 57 RU-ORL Oryol Oblast -# 58 RU-PNZ Penza Oblast -# 60 RU-PSK Pskov Oblast -# 61 RU-ROS Rostov Oblast -# 62 RU-RYA Ryazan Oblast -# 67 RU-SMO Smolensk Oblast -# 68 RU-TAM Tambov Oblast -# 69 RU-TVE Tver Oblast -# 71 RU-TUL Tula Oblast -# 73 RU-ULY Ulyanovsk Oblast -# 76 RU-YAR Yaroslavl Oblast -# 77 RU-MOW Moscow -# 78 RU-SPE Saint Petersburg -# 83 RU-NEN Nenets Autonomous Okrug +# 01 RU-AD Adygea, Republic of +# 05 RU-DA Dagestan, Republic of +# 06 RU-IN Ingushetia, Republic of +# 07 RU-KB Kabardino-Balkar Republic +# 08 RU-KL Kalmykia, Republic of +# 09 RU-KC Karachay-Cherkess Republic +# 10 RU-KR Karelia, Republic of +# 11 RU-KO Komi Republic +# 12 RU-ME Mari El Republic +# 13 RU-MO Mordovia, Republic of +# 15 RU-SE North Ossetia-Alania, Republic of +# 16 RU-TA Tatarstan, Republic of +# 20 RU-CE Chechen Republic +# 21 RU-CU Chuvash Republic +# 23 RU-KDA Krasnodar Krai +# 26 RU-STA Stavropol Krai +# 29 RU-ARK Arkhangelsk Oblast +# 31 RU-BEL Belgorod Oblast +# 32 RU-BRY Bryansk Oblast +# 33 RU-VLA Vladimir Oblast +# 35 RU-VLG Vologda Oblast +# 36 RU-VOR Voronezh Oblast +# 37 RU-IVA Ivanovo Oblast +# 40 RU-KLU Kaluga Oblast +# 44 RU-KOS Kostroma Oblast +# 46 RU-KRS Kursk Oblast +# 47 RU-LEN Leningrad Oblast +# 48 RU-LIP Lipetsk Oblast +# 50 RU-MOS Moscow Oblast +# 51 RU-MUR Murmansk Oblast +# 52 RU-NIZ Nizhny Novgorod Oblast +# 53 RU-NGR Novgorod Oblast +# 57 RU-ORL Oryol Oblast +# 58 RU-PNZ Penza Oblast +# 60 RU-PSK Pskov Oblast +# 61 RU-ROS Rostov Oblast +# 62 RU-RYA Ryazan Oblast +# 67 RU-SMO Smolensk Oblast +# 68 RU-TAM Tambov Oblast +# 69 RU-TVE Tver Oblast +# 71 RU-TUL Tula Oblast +# 76 RU-YAR Yaroslavl Oblast +# 77 RU-MOW Moscow +# 78 RU-SPE Saint Petersburg +# 83 RU-NEN Nenets Autonomous Okrug + +# From Paul Eggert (2016-08-23): +# The Soviets switched to UT-based time in 1919. Decree No. 59 +# (1919-02-08) http://istmat.info/node/35567 established UT-based time +# zones, and Decree No. 147 (1919-03-29) http://istmat.info/node/35854 +# specified a transition date of 1919-07-01, apparently at 00:00 UT. +# No doubt only the Soviet-controlled regions switched on that date; +# later transitions to UT-based time in other parts of Russia are +# taken from what appear to be guesses by Shanks. +# (Thanks to Alexander Belopolsky for pointers to the decrees.) + +# From Stepan Golosunov (2016-03-07): +# 11. Regions-violators, 1981-1982. +# Wikipedia refers to +# http://maps.monetonos.ru/maps/raznoe/Old_Maps/Old_Maps/Articles/022/3_1981.html +# http://besp.narod.ru/nauka_1981_3.htm +# +# The second link provides two articles scanned from the Nauka i Zhizn +# magazine No. 3, 1981 and a scan of the short article attributed to +# the Trud newspaper from February 1982. The first link provides the +# same Nauka i Zhizn articles converted to the text form (but misses +# time belt changes map). +# +# The second Nauka i Zhizn article says that in addition to +# introduction of summer time on 1981-04-01 there are some time belt +# border changes on 1981-10-01, mostly affecting Nenets Autonomous +# Okrug, Krasnoyarsk Krai, Yakutia, Magadan Oblast and Chukotka +# according to the provided map (colored one). In addition to that +# "time violators" (regions which were not using rules of the time +# belts in which they were located) would not be moving off the DST on +# 1981-10-01 to restore the decree time usage. (Komi ASSR was +# supposed to repeat that move in October 1982 to account for the 2 +# hour difference.) Map depicting "time violators" before 1981-10-01 +# is also provided. +# +# The article from Trud says that 1981-10-01 changes caused problems +# and some territories would be moved to pre-1981-10-01 time by not +# moving to summer time on 1982-04-01. Namely: Dagestan, +# Kabardino-Balkar, Kalmyk, Komi, Mari, Mordovian, North Ossetian, +# Tatar, Chechen-Ingush and Chuvash ASSR, Krasnodar and Stavropol +# krais, Arkhangelsk, Vladimir, Vologda, Voronezh, Gorky, Ivanovo, +# Kostroma, Lipetsk, Penza, Rostov, Ryazan, Tambov, Tyumen and +# Yaroslavl oblasts, Nenets and Evenk autonomous okrugs, Khatangsky +# district of Taymyr Autonomous Okrug. As a result Evenk Autonomous +# Okrug and Khatangsky district of Taymyr Autonomous Okrug would end +# up on Moscow+4, Tyumen Oblast on Moscow+2 and the rest on Moscow +# time. +# +# http://astrozet.net/files/Zones/DOC/RU/1980-925.txt +# attributes the 1982 changes to the Act of the Council of Ministers +# of the USSR No. 126 from 18.02.1982. 1980-925.txt also adds +# Udmurtia to the list of affected territories and lists Khatangsky +# district separately from Taymyr Autonomous Okrug. Probably erroneously. +# +# The affected territories are currently listed under Europe/Moscow, +# Asia/Yekaterinburg and Asia/Krasnoyarsk. +# +# 12. Udmurtia +# The fact that Udmurtia is depicted as a violator in the Nauka i +# Zhizn article hints at Izhevsk being on different time from +# Kuybyshev before 1981-10-01. Udmurtia is not mentioned in the 1989 act. +# http://astrozet.net/files/Zones/DOC/RU/1980-925.txt +# implies Udmurtia was on Moscow time after 1982-04-01. +# Wikipedia implies Udmurtia being on Moscow+1 until 1991. +# +# ... +# +# All Russian zones are supposed to have by default a -1 change at +# 1991-03-31 2:00 (cancellation of the decree time in the USSR) and a +1 +# change at 1992-01-19 2:00 (restoration of the decree time in Russia). +# +# There were some exceptions, though. +# Wikipedia says newspapers listed Astrakhan, Saratov, Kirov, Volgograd, +# Izhevsk, Grozny, Kazan and Samara as such exceptions for the 1992 +# change. (Different newspapers providing different lists. And some +# lists found in the internet are quite wild.) +# +# And apparently some exceptions were reverted in the last moment. +# http://www.kaliningradka.ru/site_pc/cherez/index.php?ELEMENT_ID=40091 +# says that Kaliningrad decided not to be an exception 2 days before the +# 1991-03-31 switch and one person at +# http://izhevsk.ru/forum_light_message/50/682597-m8369040.html +# says he remembers that Samara opted out of the 1992-01-19 exception +# 2 days before the switch. +# +# +# From Paul Eggert (2016-03-18): +# Given the above, we appear to be missing some Zone entries for the +# chaotic early 1980s in Russia. It's not clear what these entries +# should be. For now, sweep this under the rug and just document the +# time in Moscow. # From Vladimir Karpinsky (2014-07-08): # LMT in Moscow (before Jul 3, 1916) is 2:30:17, that was defined by Moscow # Observatory (coordinates: 55 deg. 45'29.70", 37 deg. 34'05.30").... # LMT in Moscow since Jul 3, 1916 is 2:31:01 as a result of new standard. -# (The info is from the book by Byalokoz E.L. New Counting of Time in Russia -# since July 1, 1919, p. 18.) The time in St. Petersburg as capital of Russia -# was defined by Pulkov observatory, near St. Petersburg. In 1916 LMT Moscow +# (The info is from the book by Byalokoz ... p. 18.) +# The time in St. Petersburg as capital of Russia was defined by +# Pulkov observatory, near St. Petersburg. In 1916 LMT Moscow # was synchronized with LMT St. Petersburg (+30 minutes), (Pulkov observatory # coordinates: 59 deg. 46'18.70", 30 deg. 19'40.70") so 30 deg. 19'40.70" > # 2h01m18.7s = 2:01:19. LMT Moscow = LMT St.Petersburg + 30m 2:01:19 + 0:30 = @@ -2290,14 +2525,14 @@ Zone Europe/Kaliningrad 1:22:00 - LMT 1893 Apr Zone Europe/Moscow 2:30:17 - LMT 1880 2:30:17 - MMT 1916 Jul 3 # Moscow Mean Time - 2:31:19 Russia %s 1919 Jul 1 2:00 + 2:31:19 Russia %s 1919 Jul 1 0:00u 3:00 Russia %s 1921 Oct 3:00 Russia MSK/MSD 1922 Oct 2:00 - EET 1930 Jun 21 - 3:00 Russia MSK/MSD 1991 Mar 31 2:00s - 2:00 Russia EE%sT 1992 Jan 19 2:00s - 3:00 Russia MSK/MSD 2011 Mar 27 2:00s - 4:00 - MSK 2014 Oct 26 2:00s + 3:00 Russia MSK/MSD 1991 Mar 31 2:00s + 2:00 Russia EE%sT 1992 Jan 19 2:00s + 3:00 Russia MSK/MSD 2011 Mar 27 2:00s + 4:00 - MSK 2014 Oct 26 2:00s 3:00 - MSK @@ -2312,7 +2547,7 @@ Zone Europe/Simferopol 2:16:24 - LMT 1880 3:00 - MSK 1941 Nov 1:00 C-Eur CE%sT 1944 Apr 13 3:00 Russia MSK/MSD 1990 - 3:00 - MSK 1990 Jul 1 2:00 + 3:00 - MSK 1990 Jul 1 2:00 2:00 - EET 1992 # Central Crimea used Moscow time 1994/1997. # @@ -2325,12 +2560,12 @@ Zone Europe/Simferopol 2:16:24 - LMT 1880 # changed in May. 2:00 E-Eur EE%sT 1994 May # From IATA SSIM (1994/1997), which also says that Kerch is still like Kiev. - 3:00 E-Eur MSK/MSD 1996 Mar 31 3:00s - 3:00 1:00 MSD 1996 Oct 27 3:00s + 3:00 E-Eur MSK/MSD 1996 Mar 31 0:00s + 3:00 1:00 MSD 1996 Oct 27 3:00s # IATA SSIM (1997-09) says Crimea switched to EET/EEST. # Assume it happened in March by not changing the clocks. 3:00 Russia MSK/MSD 1997 - 3:00 - MSK 1997 Mar lastSun 1:00u + 3:00 - MSK 1997 Mar lastSun 1:00u # From Alexander Krivenyshev (2014-03-17): # time change at 2:00 (2am) on March 30, 2014 # http://vz.ru/news/2014/3/17/677464.html @@ -2338,113 +2573,268 @@ Zone Europe/Simferopol 2:16:24 - LMT 1880 # Simferopol and Sevastopol reportedly changed their central town clocks # late the previous day, but this appears to have been ceremonial # and the discrepancies are small enough to not worry about. - 2:00 EU EE%sT 2014 Mar 30 2:00 - 4:00 - MSK 2014 Oct 26 2:00s + 2:00 EU EE%sT 2014 Mar 30 2:00 + 4:00 - MSK 2014 Oct 26 2:00s 3:00 - MSK -# From Tim Parenti (2014-07-03): -# Europe/Volgograd covers... -# 30 RU-AST Astrakhan Oblast -# 34 RU-VGG Volgograd Oblast -# 43 RU-KIR Kirov Oblast -# 64 RU-SAR Saratov Oblast +# From Paul Eggert (2016-03-18): +# Europe/Astrakhan covers: +# 30 RU-AST Astrakhan Oblast +# +# The 1989 transition is from USSR act No. 227 (1989-03-14). -# From Paul Eggert (2006-05-09): -# Shanks & Pottenger say Kirov is still at +0400 but Wikipedia says +0300. -# Perhaps it switched after the others? But we have no data. +# From Alexander Krivenyshev (2016-01-12): +# On February 10, 2016 Astrakhan Oblast got approval by the Federation +# Council to change its time zone to UTC+4 (from current UTC+3 Moscow time).... +# This Federal Law shall enter into force on 27 March 2016 at 02:00. +# From Matt Johnson (2016-03-09): +# http://publication.pravo.gov.ru/Document/View/0001201602150056 -Zone Europe/Volgograd 2:57:40 - LMT 1920 Jan 3 - 3:00 - TSAT 1925 Apr 6 # Tsaritsyn Time - 3:00 - STAT 1930 Jun 21 # Stalingrad Time - 4:00 - STAT 1961 Nov 11 - 4:00 Russia VOL%sT 1989 Mar 26 2:00s # Volgograd T - 3:00 Russia VOL%sT 1991 Mar 31 2:00s - 4:00 - VOLT 1992 Mar 29 2:00s - 3:00 Russia MSK 2011 Mar 27 2:00s - 4:00 - MSK 2014 Oct 26 2:00s - 3:00 - MSK +Zone Europe/Astrakhan 3:12:12 - LMT 1924 May + 3:00 - +03 1930 Jun 21 + 4:00 Russia +04/+05 1989 Mar 26 2:00s + 3:00 Russia +03/+04 1991 Mar 31 2:00s + 4:00 - +04 1992 Mar 29 2:00s + 3:00 Russia +03/+04 2011 Mar 27 2:00s + 4:00 - +04 2014 Oct 26 2:00s + 3:00 - +03 2016 Mar 27 2:00s + 4:00 - +04 +# From Paul Eggert (2016-03-18): +# Europe/Volgograd covers: +# 34 RU-VGG Volgograd Oblast +# 64 RU-SAR Saratov Oblast +# The 1988 transition is from USSR act No. 5 (1988-01-04). + +Zone Europe/Volgograd 2:57:40 - LMT 1920 Jan 3 + 3:00 - +03 1930 Jun 21 + 4:00 - +04 1961 Nov 11 + 4:00 Russia +04/+05 1988 Mar 27 2:00s + 3:00 Russia +03/+04 1991 Mar 31 2:00s + 4:00 - +04 1992 Mar 29 2:00s + 3:00 Russia +03/+04 2011 Mar 27 2:00s + 4:00 - +04 2014 Oct 26 2:00s + 3:00 - +03 + +# From Paul Eggert (2016-03-18): +# Europe/Kirov covers: +# 43 RU-KIR Kirov Oblast +# The 1989 transition is from USSR act No. 227 (1989-03-14). +# +Zone Europe/Kirov 3:18:48 - LMT 1919 Jul 1 0:00u + 3:00 - +03 1930 Jun 21 + 4:00 Russia +04/+05 1989 Mar 26 2:00s + 3:00 Russia +03/+04 1991 Mar 31 2:00s + 4:00 - +04 1992 Mar 29 2:00s + 3:00 Russia +03/+04 2011 Mar 27 2:00s + 4:00 - +04 2014 Oct 26 2:00s + 3:00 - +03 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25): # Europe/Samara covers... -# 18 RU-UD Udmurt Republic -# 63 RU-SAM Samara Oblast - -Zone Europe/Samara 3:20:36 - LMT 1919 Jul 1 2:00 - 3:00 - SAMT 1930 Jun 21 - 4:00 - SAMT 1935 Jan 27 - 4:00 Russia KUY%sT 1989 Mar 26 2:00s # Kuybyshev - 3:00 Russia MSK/MSD 1991 Mar 31 2:00s - 2:00 Russia EE%sT 1991 Sep 29 2:00s - 3:00 - KUYT 1991 Oct 20 3:00 - 4:00 Russia SAM%sT 2010 Mar 28 2:00s # Samara Time - 3:00 Russia SAM%sT 2011 Mar 27 2:00s - 4:00 - SAMT - +# 18 RU-UD Udmurt Republic +# 63 RU-SAM Samara Oblast + +# From Paul Eggert (2016-03-18): +# Byalokoz 1919 says Samara was 3:20:20. +# The 1989 transition is from USSR act No. 227 (1989-03-14). + +Zone Europe/Samara 3:20:20 - LMT 1919 Jul 1 0:00u + 3:00 - +03 1930 Jun 21 + 4:00 - +04 1935 Jan 27 + 4:00 Russia +04/+05 1989 Mar 26 2:00s + 3:00 Russia +03/+04 1991 Mar 31 2:00s + 2:00 Russia +02/+03 1991 Sep 29 2:00s + 3:00 - +03 1991 Oct 20 3:00 + 4:00 Russia +04/+05 2010 Mar 28 2:00s + 3:00 Russia +03/+04 2011 Mar 27 2:00s + 4:00 - +04 + +# From Paul Eggert (2016-03-18): +# Europe/Ulyanovsk covers: +# 73 RU-ULY Ulyanovsk Oblast + +# The 1989 transition is from USSR act No. 227 (1989-03-14). + +# From Alexander Krivenyshev (2016-02-17): +# Ulyanovsk ... on their way to change time zones by March 27, 2016 at 2am. +# Ulyanovsk Oblast ... from MSK to MSK+1 (UTC+3 to UTC+4) ... +# 920582-6 ... 02/17/2016 The State Duma passed the bill in the first reading. +# From Matt Johnson (2016-03-09): +# http://publication.pravo.gov.ru/Document/View/0001201603090051 + +Zone Europe/Ulyanovsk 3:13:36 - LMT 1919 Jul 1 0:00u + 3:00 - +03 1930 Jun 21 + 4:00 Russia +04/+05 1989 Mar 26 2:00s + 3:00 Russia +03/+04 1991 Mar 31 2:00s + 2:00 Russia +02/+03 1992 Jan 19 2:00s + 3:00 Russia +03/+04 2011 Mar 27 2:00s + 4:00 - +04 2014 Oct 26 2:00s + 3:00 - +03 2016 Mar 27 2:00s + 4:00 - +04 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25): # Asia/Yekaterinburg covers... -# 02 RU-BA Bashkortostan, Republic of -# 90 RU-PER Perm Krai -# 45 RU-KGN Kurgan Oblast -# 56 RU-ORE Orenburg Oblast -# 66 RU-SVE Sverdlovsk Oblast -# 72 RU-TYU Tyumen Oblast -# 74 RU-CHE Chelyabinsk Oblast -# 86 RU-KHM Khanty-Mansi Autonomous Okrug - Yugra -# 89 RU-YAN Yamalo-Nenets Autonomous Okrug +# 02 RU-BA Bashkortostan, Republic of +# 90 RU-PER Perm Krai +# 45 RU-KGN Kurgan Oblast +# 56 RU-ORE Orenburg Oblast +# 66 RU-SVE Sverdlovsk Oblast +# 72 RU-TYU Tyumen Oblast +# 74 RU-CHE Chelyabinsk Oblast +# 86 RU-KHM Khanty-Mansi Autonomous Okrug - Yugra +# 89 RU-YAN Yamalo-Nenets Autonomous Okrug # # Note: Effective 2005-12-01, (59) Perm Oblast and (81) Komi-Permyak # Autonomous Okrug merged to form (90, RU-PER) Perm Krai. -# Milne says Yekaterinburg time was 4:02:32.9; round to nearest. +# Milne says Yekaterinburg was 4:02:32.9; round to nearest. +# Byalokoz 1919 says its provincial time was based on Perm, at 3:45:05. +# Assume it switched on 1916-07-03, the time of the new standard. +# The 1919 and 1930 transitions are from Shanks. -Zone Asia/Yekaterinburg 4:02:33 - LMT 1919 Jul 15 4:00 - 4:00 - SVET 1930 Jun 21 # Sverdlovsk Time - 5:00 Russia SVE%sT 1991 Mar 31 2:00s - 4:00 Russia SVE%sT 1992 Jan 19 2:00s - 5:00 Russia YEK%sT 2011 Mar 27 2:00s - 6:00 - YEKT 2014 Oct 26 2:00s - 5:00 - YEKT +Zone Asia/Yekaterinburg 4:02:33 - LMT 1916 Jul 3 + 3:45:05 - PMT 1919 Jul 15 4:00 + 4:00 - +04 1930 Jun 21 + 5:00 Russia +05/+06 1991 Mar 31 2:00s + 4:00 Russia +04/+05 1992 Jan 19 2:00s + 5:00 Russia +05/+06 2011 Mar 27 2:00s + 6:00 - +06 2014 Oct 26 2:00s + 5:00 - +05 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25): # Asia/Omsk covers... -# 04 RU-AL Altai Republic -# 22 RU-ALT Altai Krai -# 55 RU-OMS Omsk Oblast - -Zone Asia/Omsk 4:53:36 - LMT 1919 Nov 14 - 5:00 - OMST 1930 Jun 21 # Omsk Time - 6:00 Russia OMS%sT 1991 Mar 31 2:00s - 5:00 Russia OMS%sT 1992 Jan 19 2:00s - 6:00 Russia OMS%sT 2011 Mar 27 2:00s - 7:00 - OMST 2014 Oct 26 2:00s - 6:00 - OMST +# 55 RU-OMS Omsk Oblast + +# Byalokoz 1919 says Omsk was 4:53:30. + +Zone Asia/Omsk 4:53:30 - LMT 1919 Nov 14 + 5:00 - +05 1930 Jun 21 + 6:00 Russia +06/+07 1991 Mar 31 2:00s + 5:00 Russia +05/+06 1992 Jan 19 2:00s + 6:00 Russia +06/+07 2011 Mar 27 2:00s + 7:00 - +07 2014 Oct 26 2:00s + 6:00 - +06 + +# From Paul Eggert (2016-02-22): +# Asia/Barnaul covers: +# 04 RU-AL Altai Republic +# 22 RU-ALT Altai Krai + +# Data before 1991 are from Shanks & Pottenger. + +# From Stepan Golosunov (2016-03-07): +# Letter of Bank of Russia from 1995-05-25 +# http://www.bestpravo.ru/rossijskoje/lj-akty/y3a.htm +# suggests that Altai Republic transitioned to Moscow+3 on +# 1995-05-28. +# +# http://regnum.ru/news/society/1957270.html +# has some historical data for Altai Krai: +# before 1957: west part on UTC+6, east on UTC+7 +# after 1957: UTC+7 +# since 1995: UTC+6 +# http://barnaul.rusplt.ru/index/pochemu_altajskij_kraj_okazalsja_v_neprivychnom_chasovom_pojase-17648.html +# confirms that and provides more details including 1995-05-28 transition date. + +# From Alexander Krivenyshev (2016-02-17): +# Altai Krai and Altai Republic on their way to change time zones +# by March 27, 2016 at 2am.... +# Altai Republic / Gorno-Altaysk MSK+3 to MSK+4 (UTC+6 to UTC+7) ... +# Altai Krai / Barnaul MSK+3 to MSK+4 (UTC+6 to UTC+7) +# From Matt Johnson (2016-03-09): +# http://publication.pravo.gov.ru/Document/View/0001201603090043 +# http://publication.pravo.gov.ru/Document/View/0001201603090038 + +Zone Asia/Barnaul 5:35:00 - LMT 1919 Dec 10 + 6:00 - +06 1930 Jun 21 + 7:00 Russia +07/+08 1991 Mar 31 2:00s + 6:00 Russia +06/+07 1992 Jan 19 2:00s + 7:00 Russia +07/+08 1995 May 28 + 6:00 Russia +06/+07 2011 Mar 27 2:00s + 7:00 - +07 2014 Oct 26 2:00s + 6:00 - +06 2016 Mar 27 2:00s + 7:00 - +07 + +# From Paul Eggert (2016-03-18): +# Asia/Novosibirsk covers: +# 54 RU-NVS Novosibirsk Oblast + +# From Stepan Golosunov (2016-05-30): +# http://asozd2.duma.gov.ru/main.nsf/(Spravka)?OpenAgent&RN=1085784-6 +# moves Novosibirsk oblast from UTC+6 to UTC+7. +# From Stepan Golosunov (2016-07-04): +# The law was signed yesterday and published today on +# http://publication.pravo.gov.ru/Document/View/0001201607040064 + +Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 + 6:00 - +06 1930 Jun 21 + 7:00 Russia +07/+08 1991 Mar 31 2:00s + 6:00 Russia +06/+07 1992 Jan 19 2:00s + 7:00 Russia +07/+08 1993 May 23 # say Shanks & P. + 6:00 Russia +06/+07 2011 Mar 27 2:00s + 7:00 - +07 2014 Oct 26 2:00s + 6:00 - +06 2016 Jul 24 2:00s + 7:00 - +07 + +# From Paul Eggert (2016-03-18): +# Asia/Tomsk covers: +# 70 RU-TOM Tomsk Oblast + +# From Stepan Golosunov (2016-03-24): +# Byalokoz listed Tomsk at 5:39:51. - -# From Tim Parenti (2014-07-03): -# Asia/Novosibirsk covers... -# 54 RU-NVS Novosibirsk Oblast -# 70 RU-TOM Tomsk Oblast - -# From Paul Eggert (2006-08-19): I'm guessing about Tomsk here; it's -# not clear when it switched from +7 to +6. - -Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 - 6:00 - NOVT 1930 Jun 21 # Novosibirsk Time - 7:00 Russia NOV%sT 1991 Mar 31 2:00s - 6:00 Russia NOV%sT 1992 Jan 19 2:00s - 7:00 Russia NOV%sT 1993 May 23 # say Shanks & P. - 6:00 Russia NOV%sT 2011 Mar 27 2:00s - 7:00 - NOVT 2014 Oct 26 2:00s - 6:00 - NOVT +# From Stanislaw A. Kuzikowski (1994-06-29): +# Tomsk is still 4 hours ahead of Moscow. + +# From Stepan Golosunov (2016-03-19): +# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102075743 +# (fifth time belt being UTC+5+1(decree time) +# / UTC+5+1(decree time)+1(summer time)) ... +# Note that time belts (numbered from 2 (Moscow) to 12 according to their +# GMT/UTC offset and having too many exceptions like regions formally +# belonging to one belt but using time from another) were replaced +# with time zones in 2011 with different numbering (there was a +# 2-hour gap between second and third zones in 2011-2014). + +# From Stepan Golosunov (2016-04-12): +# http://asozd2.duma.gov.ru/main.nsf/(SpravkaNew)?OpenAgent&RN=1006865-6 +# This bill was approved in the first reading today. It moves Tomsk oblast +# from UTC+6 to UTC+7 and is supposed to come into effect on 2016-05-29 at +# 2:00. The bill needs to be approved in the second and the third readings by +# the State Duma, approved by the Federation Council, signed by the President +# and published to become a law. Minor changes in the text are to be expected +# before the second reading (references need to be updated to account for the +# recent changes). +# +# Judging by the ultra-short one-day amendments period, recent similar laws, +# the State Duma schedule and the Federation Council schedule +# http://www.duma.gov.ru/legislative/planning/day-shedule/por_vesna_2016/ +# http://council.gov.ru/activity/meetings/schedule/63303 +# I speculate that the final text of the bill will be proposed tomorrow, the +# bill will be approved in the second and the third readings on Friday, +# approved by the Federation Council on 2016-04-20, signed by the President and +# published as a law around 2016-04-26. + +# From Matt Johnson (2016-04-26): +# http://publication.pravo.gov.ru/Document/View/0001201604260048 + +Zone Asia/Tomsk 5:39:51 - LMT 1919 Dec 22 + 6:00 - +06 1930 Jun 21 + 7:00 Russia +07/+08 1991 Mar 31 2:00s + 6:00 Russia +06/+07 1992 Jan 19 2:00s + 7:00 Russia +07/+08 2002 May 1 3:00 + 6:00 Russia +06/+07 2011 Mar 27 2:00s + 7:00 - +07 2014 Oct 26 2:00s + 6:00 - +06 2016 May 29 2:00s + 7:00 - +07 # From Tim Parenti (2014-07-03): # Asia/Novokuznetsk covers... -# 42 RU-KEM Kemerovo Oblast +# 42 RU-KEM Kemerovo Oblast # From Alexander Krivenyshev (2009-10-13): # Kemerovo oblast' (Kemerovo region) in Russia will change current time zone on @@ -2452,7 +2842,7 @@ Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 # from current Russia Zone 6 - Krasnoyarsk Time Zone (KRA) UTC +0700 # to Russia Zone 5 - Novosibirsk Time Zone (NOV) UTC +0600 # -# This is according to Government of Russia decree # 740, on September +# This is according to Government of Russia decree No. 740, on September # 14, 2009 "Application in the territory of the Kemerovo region the Fifth # time zone." ("Russia Zone 5" or old "USSR Zone 5" is GMT +0600) # @@ -2464,81 +2854,87 @@ Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 # # Thus, when Russia will switch to DST on the night of March 28, 2010 # Kemerovo region (Kemerovo oblast') will not change the clock. -# -# As a result, Kemerovo oblast' will be in the same time zone as -# Novosibirsk, Omsk, Tomsk, Barnaul and Altai Republic. # From Tim Parenti (2014-07-02), per Alexander Krivenyshev (2014-07-02): # The Kemerovo region will remain at UTC+7 through the 2014-10-26 change, thus # realigning itself with KRAT. -Zone Asia/Novokuznetsk 5:48:48 - NMT 1920 Jan 6 - 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time - 7:00 Russia KRA%sT 1991 Mar 31 2:00s - 6:00 Russia KRA%sT 1992 Jan 19 2:00s - 7:00 Russia KRA%sT 2010 Mar 28 2:00s - 6:00 Russia NOV%sT 2011 Mar 27 2:00s # Novosibirsk T - 7:00 - NOVT 2014 Oct 26 2:00s - 7:00 - KRAT # Krasnoyarsk Time - +Zone Asia/Novokuznetsk 5:48:48 - LMT 1924 May 1 + 6:00 - +06 1930 Jun 21 + 7:00 Russia +07/+08 1991 Mar 31 2:00s + 6:00 Russia +06/+07 1992 Jan 19 2:00s + 7:00 Russia +07/+08 2010 Mar 28 2:00s + 6:00 Russia +06/+07 2011 Mar 27 2:00s + 7:00 - +07 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25): # Asia/Krasnoyarsk covers... -# 17 RU-TY Tuva Republic -# 19 RU-KK Khakassia, Republic of -# 24 RU-KYA Krasnoyarsk Krai +# 17 RU-TY Tuva Republic +# 19 RU-KK Khakassia, Republic of +# 24 RU-KYA Krasnoyarsk Krai # # Note: Effective 2007-01-01, (88) Evenk Autonomous Okrug and (84) Taymyr # Autonomous Okrug were merged into (24, RU-KYA) Krasnoyarsk Krai. -Zone Asia/Krasnoyarsk 6:11:20 - LMT 1920 Jan 6 - 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time - 7:00 Russia KRA%sT 1991 Mar 31 2:00s - 6:00 Russia KRA%sT 1992 Jan 19 2:00s - 7:00 Russia KRA%sT 2011 Mar 27 2:00s - 8:00 - KRAT 2014 Oct 26 2:00s - 7:00 - KRAT +# Byalokoz 1919 says Krasnoyarsk was 6:11:26. + +Zone Asia/Krasnoyarsk 6:11:26 - LMT 1920 Jan 6 + 6:00 - +06 1930 Jun 21 + 7:00 Russia +07/+08 1991 Mar 31 2:00s + 6:00 Russia +06/+07 1992 Jan 19 2:00s + 7:00 Russia +07/+08 2011 Mar 27 2:00s + 8:00 - +08 2014 Oct 26 2:00s + 7:00 - +07 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25): # Asia/Irkutsk covers... -# 03 RU-BU Buryatia, Republic of -# 38 RU-IRK Irkutsk Oblast +# 03 RU-BU Buryatia, Republic of +# 38 RU-IRK Irkutsk Oblast # # Note: Effective 2008-01-01, (85) Ust-Orda Buryat Autonomous Okrug was # merged into (38, RU-IRK) Irkutsk Oblast. -# Milne says Irkutsk time was 6:57:15. +# Milne 1899 says Irkutsk was 6:57:15. +# Byalokoz 1919 says Irkutsk was 6:57:05. +# Go with Byalokoz. -Zone Asia/Irkutsk 6:57:15 - LMT 1880 - 6:57:15 - IMT 1920 Jan 25 # Irkutsk Mean Time - 7:00 - IRKT 1930 Jun 21 # Irkutsk Time - 8:00 Russia IRK%sT 1991 Mar 31 2:00s - 7:00 Russia IRK%sT 1992 Jan 19 2:00s - 8:00 Russia IRK%sT 2011 Mar 27 2:00s - 9:00 - IRKT 2014 Oct 26 2:00s - 8:00 - IRKT +Zone Asia/Irkutsk 6:57:05 - LMT 1880 + 6:57:05 - IMT 1920 Jan 25 # Irkutsk Mean Time + 7:00 - +07 1930 Jun 21 + 8:00 Russia +08/+09 1991 Mar 31 2:00s + 7:00 Russia +07/+08 1992 Jan 19 2:00s + 8:00 Russia +08/+09 2011 Mar 27 2:00s + 9:00 - +09 2014 Oct 26 2:00s + 8:00 - +08 # From Tim Parenti (2014-07-06): # Asia/Chita covers... -# 92 RU-ZAB Zabaykalsky Krai +# 92 RU-ZAB Zabaykalsky Krai # # Note: Effective 2008-03-01, (75) Chita Oblast and (80) Agin-Buryat # Autonomous Okrug merged to form (92, RU-ZAB) Zabaykalsky Krai. +# From Alexander Krivenyshev (2016-01-02): +# [The] time zone in the Trans-Baikal Territory (Zabaykalsky Krai) - +# Asia/Chita [is changing] from UTC+8 to UTC+9. Effective date will +# be March 27, 2016 at 2:00am.... +# http://publication.pravo.gov.ru/Document/View/0001201512300107 + Zone Asia/Chita 7:33:52 - LMT 1919 Dec 15 - 8:00 - YAKT 1930 Jun 21 # Yakutsk Time - 9:00 Russia YAK%sT 1991 Mar 31 2:00s - 8:00 Russia YAK%sT 1992 Jan 19 2:00s - 9:00 Russia YAK%sT 2011 Mar 27 2:00s - 10:00 - YAKT 2014 Oct 26 2:00s - 8:00 - IRKT + 8:00 - +08 1930 Jun 21 + 9:00 Russia +09/+10 1991 Mar 31 2:00s + 8:00 Russia +08/+09 1992 Jan 19 2:00s + 9:00 Russia +09/+10 2011 Mar 27 2:00s + 10:00 - +10 2014 Oct 26 2:00s + 8:00 - +08 2016 Mar 27 2:00 + 9:00 - +09 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2009-11-29): # Asia/Yakutsk covers... -# 28 RU-AMU Amur Oblast +# 28 RU-AMU Amur Oblast # # ...and parts of (14, RU-SA) Sakha (Yakutia) Republic: # 14-02 **** Aldansky District @@ -2570,34 +2966,38 @@ Zone Asia/Chita 7:33:52 - LMT 1919 Dec 15 # Since the surrounding districts of Sakha are all YAKT, assume this is, too. # Also assume its history has been the same as the rest of Asia/Yakutsk. -Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15 - 8:00 - YAKT 1930 Jun 21 # Yakutsk Time - 9:00 Russia YAK%sT 1991 Mar 31 2:00s - 8:00 Russia YAK%sT 1992 Jan 19 2:00s - 9:00 Russia YAK%sT 2011 Mar 27 2:00s - 10:00 - YAKT 2014 Oct 26 2:00s - 9:00 - YAKT +# Byalokoz 1919 says Yakutsk was 8:38:58. + +Zone Asia/Yakutsk 8:38:58 - LMT 1919 Dec 15 + 8:00 - +08 1930 Jun 21 + 9:00 Russia +09/+10 1991 Mar 31 2:00s + 8:00 Russia +08/+09 1992 Jan 19 2:00s + 9:00 Russia +09/+10 2011 Mar 27 2:00s + 10:00 - +10 2014 Oct 26 2:00s + 9:00 - +09 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2009-11-29): # Asia/Vladivostok covers... -# 25 RU-PRI Primorsky Krai -# 27 RU-KHA Khabarovsk Krai -# 79 RU-YEV Jewish Autonomous Oblast +# 25 RU-PRI Primorsky Krai +# 27 RU-KHA Khabarovsk Krai +# 79 RU-YEV Jewish Autonomous Oblast # # ...and parts of (14, RU-SA) Sakha (Yakutia) Republic: # 14-09 **** Verkhoyansky District # 14-31 **** Ust-Yansky District -# Milne says Vladivostok time was 8:47:33.5; round to nearest. +# Milne 1899 says Vladivostok was 8:47:33.5. +# Byalokoz 1919 says Vladivostok was 8:47:31. +# Go with Byalokoz. -Zone Asia/Vladivostok 8:47:34 - LMT 1922 Nov 15 - 9:00 - VLAT 1930 Jun 21 # Vladivostok Time - 10:00 Russia VLA%sT 1991 Mar 31 2:00s - 9:00 Russia VLA%sT 1992 Jan 19 2:00s - 10:00 Russia VLA%sT 2011 Mar 27 2:00s - 11:00 - VLAT 2014 Oct 26 2:00s - 10:00 - VLAT +Zone Asia/Vladivostok 8:47:31 - LMT 1922 Nov 15 + 9:00 - +09 1930 Jun 21 + 10:00 Russia +10/+11 1991 Mar 31 2:00s + 9:00 Russia +09/+10 1992 Jan 19 2:00s + 10:00 Russia +10/+11 2011 Mar 27 2:00s + 11:00 - +11 2014 Oct 26 2:00s + 10:00 - +10 # From Tim Parenti (2014-07-03): @@ -2615,37 +3015,42 @@ Zone Asia/Vladivostok 8:47:34 - LMT 1922 Nov 15 # This transition is no doubt wrong, but we have no better info. Zone Asia/Khandyga 9:02:13 - LMT 1919 Dec 15 - 8:00 - YAKT 1930 Jun 21 # Yakutsk Time - 9:00 Russia YAK%sT 1991 Mar 31 2:00s - 8:00 Russia YAK%sT 1992 Jan 19 2:00s - 9:00 Russia YAK%sT 2004 - 10:00 Russia VLA%sT 2011 Mar 27 2:00s - 11:00 - VLAT 2011 Sep 13 0:00s # Decree 725? - 10:00 - YAKT 2014 Oct 26 2:00s - 9:00 - YAKT + 8:00 - +08 1930 Jun 21 + 9:00 Russia +09/+10 1991 Mar 31 2:00s + 8:00 Russia +08/+09 1992 Jan 19 2:00s + 9:00 Russia +09/+10 2004 + 10:00 Russia +10/+11 2011 Mar 27 2:00s + 11:00 - +11 2011 Sep 13 0:00s # Decree 725? + 10:00 - +10 2014 Oct 26 2:00s + 9:00 - +09 # From Tim Parenti (2014-07-03): # Asia/Sakhalin covers... -# 65 RU-SAK Sakhalin Oblast +# 65 RU-SAK Sakhalin Oblast # ...with the exception of: # 65-11 **** Severo-Kurilsky District (North Kuril Islands) +# From Matt Johnson (2016-02-22): +# Asia/Sakhalin is moving (in entirety) from UTC+10 to UTC+11 ... +# (2016-03-09): +# http://publication.pravo.gov.ru/Document/View/0001201603090044 + # The Zone name should be Asia/Yuzhno-Sakhalinsk, but that's too long. Zone Asia/Sakhalin 9:30:48 - LMT 1905 Aug 23 - 9:00 - JCST 1937 Oct 1 - 9:00 - JST 1945 Aug 25 - 11:00 Russia SAK%sT 1991 Mar 31 2:00s # Sakhalin T. - 10:00 Russia SAK%sT 1992 Jan 19 2:00s - 11:00 Russia SAK%sT 1997 Mar lastSun 2:00s - 10:00 Russia SAK%sT 2011 Mar 27 2:00s - 11:00 - SAKT 2014 Oct 26 2:00s - 10:00 - SAKT + 9:00 - +09 1945 Aug 25 + 11:00 Russia +11/+12 1991 Mar 31 2:00s # Sakhalin T + 10:00 Russia +10/+11 1992 Jan 19 2:00s + 11:00 Russia +11/+12 1997 Mar lastSun 2:00s + 10:00 Russia +10/+11 2011 Mar 27 2:00s + 11:00 - +11 2014 Oct 26 2:00s + 10:00 - +10 2016 Mar 27 2:00s + 11:00 - +11 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2009-11-29): # Asia/Magadan covers... -# 49 RU-MAG Magadan Oblast +# 49 RU-MAG Magadan Oblast # From Tim Parenti (2014-07-06), per Alexander Krivenyshev (2014-07-02): # Magadan Oblast is moving from UTC+12 to UTC+10 on 2014-10-26; however, @@ -2654,13 +3059,22 @@ Zone Asia/Sakhalin 9:30:48 - LMT 1905 Aug 23 # until now by Asia/Magadan, will instead move to UTC+11. These regions will # need their own zone. +# From Alexander Krivenyshev (2016-03-27): +# ... draft bill 948300-6 to change its time zone from UTC+10 to UTC+11 ... +# will take ... effect ... on April 24, 2016 at 2 o'clock +# +# From Matt Johnson (2016-04-05): +# ... signed by the President today ... +# http://publication.pravo.gov.ru/Document/View/0001201604050038 + Zone Asia/Magadan 10:03:12 - LMT 1924 May 2 - 10:00 - MAGT 1930 Jun 21 # Magadan Time - 11:00 Russia MAG%sT 1991 Mar 31 2:00s - 10:00 Russia MAG%sT 1992 Jan 19 2:00s - 11:00 Russia MAG%sT 2011 Mar 27 2:00s - 12:00 - MAGT 2014 Oct 26 2:00s - 10:00 - MAGT + 10:00 - +10 1930 Jun 21 # Magadan Time + 11:00 Russia +11/+12 1991 Mar 31 2:00s + 10:00 Russia +10/+11 1992 Jan 19 2:00s + 11:00 Russia +11/+12 2011 Mar 27 2:00s + 12:00 - +12 2014 Oct 26 2:00s + 10:00 - +10 2016 Apr 24 2:00s + 11:00 - +11 # From Tim Parenti (2014-07-06): @@ -2703,17 +3117,14 @@ Zone Asia/Magadan 10:03:12 - LMT 1924 May 2 # in Russian.) In addition, Srednekolymsk appears to be a much older # settlement and the population of Zyryanka seems to be declining. # Go with Srednekolymsk. -# -# Since Magadan Oblast moves to UTC+10 on 2014-10-26, we cannot keep using MAGT -# as the abbreviation. Use SRET instead. Zone Asia/Srednekolymsk 10:14:52 - LMT 1924 May 2 - 10:00 - MAGT 1930 Jun 21 # Magadan Time - 11:00 Russia MAG%sT 1991 Mar 31 2:00s - 10:00 Russia MAG%sT 1992 Jan 19 2:00s - 11:00 Russia MAG%sT 2011 Mar 27 2:00s - 12:00 - MAGT 2014 Oct 26 2:00s - 11:00 - SRET # Srednekolymsk Time + 10:00 - +10 1930 Jun 21 + 11:00 Russia +11/+12 1991 Mar 31 2:00s + 10:00 Russia +10/+11 1992 Jan 19 2:00s + 11:00 Russia +11/+12 2011 Mar 27 2:00s + 12:00 - +12 2014 Oct 26 2:00s + 11:00 - +11 # From Tim Parenti (2014-07-03): @@ -2731,19 +3142,19 @@ Zone Asia/Srednekolymsk 10:14:52 - LMT 1924 May 2 # UTC+12 since at least then, too. Zone Asia/Ust-Nera 9:32:54 - LMT 1919 Dec 15 - 8:00 - YAKT 1930 Jun 21 # Yakutsk Time - 9:00 Russia YAKT 1981 Apr 1 - 11:00 Russia MAG%sT 1991 Mar 31 2:00s - 10:00 Russia MAG%sT 1992 Jan 19 2:00s - 11:00 Russia MAG%sT 2011 Mar 27 2:00s - 12:00 - MAGT 2011 Sep 13 0:00s # Decree 725? - 11:00 - VLAT 2014 Oct 26 2:00s - 10:00 - VLAT + 8:00 - +08 1930 Jun 21 + 9:00 Russia +09/+10 1981 Apr 1 + 11:00 Russia +11/+12 1991 Mar 31 2:00s + 10:00 Russia +10/+11 1992 Jan 19 2:00s + 11:00 Russia +11/+12 2011 Mar 27 2:00s + 12:00 - +12 2011 Sep 13 0:00s # Decree 725? + 11:00 - +11 2014 Oct 26 2:00s + 10:00 - +10 # From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25): # Asia/Kamchatka covers... -# 91 RU-KAM Kamchatka Krai +# 91 RU-KAM Kamchatka Krai # # Note: Effective 2007-07-01, (41) Kamchatka Oblast and (82) Koryak # Autonomous Okrug merged to form (91, RU-KAM) Kamchatka Krai. @@ -2751,26 +3162,26 @@ Zone Asia/Ust-Nera 9:32:54 - LMT 1919 Dec 15 # The Zone name should be Asia/Petropavlovsk-Kamchatski or perhaps # Asia/Petropavlovsk-Kamchatsky, but these are too long. Zone Asia/Kamchatka 10:34:36 - LMT 1922 Nov 10 - 11:00 - PETT 1930 Jun 21 # P-K Time - 12:00 Russia PET%sT 1991 Mar 31 2:00s - 11:00 Russia PET%sT 1992 Jan 19 2:00s - 12:00 Russia PET%sT 2010 Mar 28 2:00s - 11:00 Russia PET%sT 2011 Mar 27 2:00s - 12:00 - PETT + 11:00 - +11 1930 Jun 21 + 12:00 Russia +12/+13 1991 Mar 31 2:00s + 11:00 Russia +11/+12 1992 Jan 19 2:00s + 12:00 Russia +12/+13 2010 Mar 28 2:00s + 11:00 Russia +11/+12 2011 Mar 27 2:00s + 12:00 - +12 # From Tim Parenti (2014-07-03): # Asia/Anadyr covers... -# 87 RU-CHU Chukotka Autonomous Okrug +# 87 RU-CHU Chukotka Autonomous Okrug Zone Asia/Anadyr 11:49:56 - LMT 1924 May 2 - 12:00 - ANAT 1930 Jun 21 # Anadyr Time - 13:00 Russia ANA%sT 1982 Apr 1 0:00s - 12:00 Russia ANA%sT 1991 Mar 31 2:00s - 11:00 Russia ANA%sT 1992 Jan 19 2:00s - 12:00 Russia ANA%sT 2010 Mar 28 2:00s - 11:00 Russia ANA%sT 2011 Mar 27 2:00s - 12:00 - ANAT + 12:00 - +12 1930 Jun 21 + 13:00 Russia +13/+14 1982 Apr 1 0:00s + 12:00 Russia +12/+13 1991 Mar 31 2:00s + 11:00 Russia +11/+12 1992 Jan 19 2:00s + 12:00 Russia +12/+13 2010 Mar 28 2:00s + 11:00 Russia +11/+12 2011 Mar 27 2:00s + 12:00 - +12 # San Marino @@ -2781,7 +3192,7 @@ Zone Asia/Anadyr 11:49:56 - LMT 1924 May 2 Zone Europe/Belgrade 1:22:00 - LMT 1884 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 - 1:00 - CET 1945 May 8 2:00s + 1:00 - CET 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s # Metod Koželj reports that the legal date of # transition to EU rules was 1982-11-27, for all of Yugoslavia at the time. @@ -2861,13 +3272,13 @@ Zone Africa/Ceuta -0:21:16 - LMT 1901 0:00 1:00 WEST 1918 Oct 7 23:00 0:00 - WET 1924 0:00 Spain WE%sT 1929 - 0:00 SpainAfrica WE%sT 1984 Mar 16 + 0:00 SpainAfrica WE%sT 1984 Mar 16 1:00 - CET 1986 1:00 EU CE%sT Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C. - -1:00 - CANT 1946 Sep 30 1:00 # Canaries Time - 0:00 - WET 1980 Apr 6 0:00s - 0:00 1:00 WEST 1980 Sep 28 0:00s + -1:00 - CANT 1946 Sep 30 1:00 # Canaries T + 0:00 - WET 1980 Apr 6 0:00s + 0:00 1:00 WEST 1980 Sep 28 1:00u 0:00 EU WE%sT # IATA SSIM (1996-09) says the Canaries switch at 2:00u, not 1:00u. # Ignore this for now, as the Canaries are part of the EU. @@ -2920,9 +3331,9 @@ Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1 - 1:00:14 - SET 1900 Jan 1 # Swedish Time + 1:00:14 - SET 1900 Jan 1 # Swedish Time 1:00 - CET 1916 May 14 23:00 - 1:00 1:00 CEST 1916 Oct 1 01:00 + 1:00 1:00 CEST 1916 Oct 1 1:00 1:00 - CET 1980 1:00 EU CE%sT @@ -2991,7 +3402,7 @@ Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1 # From Pierre-Yves Berger (2013-09-11): # the "Circulaire du conseil fédéral" (December 11 1893) -# <http://www.amtsdruckschriften.bar.admin.ch/viewOrigDoc.do?id=10071353> ... +# http://www.amtsdruckschriften.bar.admin.ch/viewOrigDoc.do?id=10071353 # clearly states that the [1894-06-01] change should be done at midnight # but if no one is present after 11 at night, could be postponed until one # hour before the beginning of service. @@ -3023,28 +3434,30 @@ Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Zurich 0:34:08 - LMT 1853 Jul 16 # See above comment. - 0:29:46 - BMT 1894 Jun # Bern Mean Time + 0:29:46 - BMT 1894 Jun # Bern Mean Time 1:00 Swiss CE%sT 1981 1:00 EU CE%sT # Turkey -# From Amar Devegowda (2007-01-03): -# The time zone rules for Istanbul, Turkey have not been changed for years now. -# ... The latest rules are available at: -# http://www.timeanddate.com/worldclock/timezone.html?n=107 -# From Steffen Thorsen (2007-01-03): -# I have been able to find press records back to 1996 which all say that -# DST started 01:00 local time and end at 02:00 local time. I am not sure -# what happened before that. One example for each year from 1996 to 2001: -# http://newspot.byegm.gov.tr/arsiv/1996/21/N4.htm -# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING97/03/97X03X25.TXT -# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING98/03/98X03X02.HTM -# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING99/10/99X10X26.HTM#%2016 -# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2000/03/00X03X06.HTM#%2021 -# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2001/03/23x03x01.HTM#%2027 -# From Paul Eggert (2007-01-03): -# Prefer the above source to Shanks & Pottenger for time stamps after 1990. +# From Kıvanç Yazan (2016-09-25): +# 1) For 1986-2006, DST started at 01:00 local and ended at 02:00 local, with +# no exceptions. +# 2) 1994's lastSun was overridden with Mar 20 ... +# Here are official papers: +# http://www.resmigazete.gov.tr/arsiv/19032.pdf - page 2 for 1986 +# http://www.resmigazete.gov.tr/arsiv/19400.pdf - page 4 for 1987 +# http://www.resmigazete.gov.tr/arsiv/19752.pdf - page 15 for 1988 +# http://www.resmigazete.gov.tr/arsiv/20102.pdf - page 6 for 1989 +# http://www.resmigazete.gov.tr/arsiv/20464.pdf - page 1 for 1990 - 1992 +# http://www.resmigazete.gov.tr/arsiv/21531.pdf - page 15 for 1993 - 1995 +# http://www.resmigazete.gov.tr/arsiv/21879.pdf - page 1 for overriding 1994 +# http://www.resmigazete.gov.tr/arsiv/22588.pdf - page 1 for 1996, 1997 +# http://www.resmigazete.gov.tr/arsiv/23286.pdf - page 10 for 1998 - 2000 +# http://www.resmigazete.gov.tr/eskiler/2001/03/20010324.htm#2 - for 2001 +# http://www.resmigazete.gov.tr/eskiler/2002/03/20020316.htm#2 - for 2002-2006 +# From Paul Eggert (2016-09-25): +# Prefer the above sources to Shanks & Pottenger for time stamps after 1985. # From Steffen Thorsen (2007-03-09): # Starting 2007 though, it seems that they are adopting EU's 1:00 UTC @@ -3080,6 +3493,25 @@ Zone Europe/Zurich 0:34:08 - LMT 1853 Jul 16 # See above comment. # http://www.balkaneu.com/eventful-elections-turkey/ 2014-03-30. # I guess the best we can do is document the official time. +# From Fatih (2015-09-29): +# It's officially announced now by the Ministry of Energy. +# Turkey delays winter time to 8th of November 04:00 +# http://www.aa.com.tr/tr/turkiye/yaz-saati-uygulamasi-8-kasimda-sona-erecek/362217 +# +# From BBC News (2015-10-25): +# Confused Turks are asking "what's the time?" after automatic clocks defied a +# government decision ... "For the next two weeks #Turkey is on EEST... Erdogan +# Engineered Standard Time," said Twitter user @aysekarahasan. +# http://www.bbc.com/news/world-europe-34631326 + +# From Burak AYDIN (2016-09-08): +# Turkey will stay in Daylight Saving Time even in winter.... +# http://www.resmigazete.gov.tr/eskiler/2016/09/20160908-2.pdf +# +# From Paul Eggert (2016-09-07): +# The change is permanent, so this is the new standard time in Turkey. +# It takes effect today, which is not much notice. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Turkey 1916 only - May 1 0:00 1:00 S Rule Turkey 1916 only - Oct 1 0:00 0 - @@ -3134,22 +3566,25 @@ Rule Turkey 1983 only - Jul 31 0:00 1:00 S Rule Turkey 1983 only - Oct 2 0:00 0 - Rule Turkey 1985 only - Apr 20 0:00 1:00 S Rule Turkey 1985 only - Sep 28 0:00 0 - -Rule Turkey 1986 1990 - Mar lastSun 2:00s 1:00 S -Rule Turkey 1986 1990 - Sep lastSun 2:00s 0 - -Rule Turkey 1991 2006 - Mar lastSun 1:00s 1:00 S -Rule Turkey 1991 1995 - Sep lastSun 1:00s 0 - +Rule Turkey 1986 1993 - Mar lastSun 1:00s 1:00 S +Rule Turkey 1986 1995 - Sep lastSun 1:00s 0 - +Rule Turkey 1994 only - Mar 20 1:00s 1:00 S +Rule Turkey 1995 2006 - Mar lastSun 1:00s 1:00 S Rule Turkey 1996 2006 - Oct lastSun 1:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Istanbul 1:55:52 - LMT 1880 1:56:56 - IMT 1910 Oct # Istanbul Mean Time? 2:00 Turkey EE%sT 1978 Oct 15 - 3:00 Turkey TR%sT 1985 Apr 20 # Turkey Time + 3:00 Turkey +03/+04 1985 Apr 20 2:00 Turkey EE%sT 2007 - 2:00 EU EE%sT 2011 Mar 27 1:00u - 2:00 - EET 2011 Mar 28 1:00u - 2:00 EU EE%sT 2014 Mar 30 1:00u - 2:00 - EET 2014 Mar 31 1:00u - 2:00 EU EE%sT + 2:00 EU EE%sT 2011 Mar 27 1:00u + 2:00 - EET 2011 Mar 28 1:00u + 2:00 EU EE%sT 2014 Mar 30 1:00u + 2:00 - EET 2014 Mar 31 1:00u + 2:00 EU EE%sT 2015 Oct 25 1:00u + 2:00 1:00 EEST 2015 Nov 8 1:00u + 2:00 EU EE%sT 2016 Sep 7 + 3:00 - +03 Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # Ukraine @@ -3157,7 +3592,7 @@ Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # From Igor Karpov, who works for the Ukrainian Ministry of Justice, # via Garrett Wollman (2003-01-27): # BTW, I've found the official document on this matter. It's government -# regulations number 509, May 13, 1996. In my poor translation it says: +# regulations No. 509, May 13, 1996. In my poor translation it says: # "Time in Ukraine is set to second timezone (Kiev time). Each last Sunday # of March at 3am the time is changing to 4am and each last Sunday of # October the time at 4am is changing to 3am" @@ -3166,7 +3601,7 @@ Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # On September 20, 2011 the deputies of the Verkhovna Rada agreed to # abolish the transfer clock to winter time. # -# Bill number 8330 of MP from the Party of Regions Oleg Nadoshi got +# Bill No. 8330 of MP from the Party of Regions Oleg Nadoshi got # approval from 266 deputies. # # Ukraine abolishes transfer back to the winter time (in Russian) @@ -3230,8 +3665,8 @@ Zone Europe/Kiev 2:02:04 - LMT 1880 2:00 - EET 1930 Jun 21 3:00 - MSK 1941 Sep 20 1:00 C-Eur CE%sT 1943 Nov 6 - 3:00 Russia MSK/MSD 1990 Jul 1 2:00 - 2:00 1:00 EEST 1991 Sep 29 3:00 + 3:00 Russia MSK/MSD 1990 Jul 1 2:00 + 2:00 1:00 EEST 1991 Sep 29 3:00 2:00 E-Eur EE%sT 1995 2:00 EU EE%sT # Ruthenia used CET 1990/1991. @@ -3243,8 +3678,8 @@ Zone Europe/Uzhgorod 1:29:12 - LMT 1890 Oct 1:00 1:00 CEST 1944 Oct 26 1:00 - CET 1945 Jun 29 3:00 Russia MSK/MSD 1990 - 3:00 - MSK 1990 Jul 1 2:00 - 1:00 - CET 1991 Mar 31 3:00 + 3:00 - MSK 1990 Jul 1 2:00 + 1:00 - CET 1991 Mar 31 3:00 2:00 - EET 1992 2:00 E-Eur EE%sT 1995 2:00 EU EE%sT @@ -3258,7 +3693,7 @@ Zone Europe/Zaporozhye 2:20:40 - LMT 1880 2:00 - EET 1930 Jun 21 3:00 - MSK 1941 Aug 25 1:00 C-Eur CE%sT 1943 Oct 25 - 3:00 Russia MSK/MSD 1991 Mar 31 2:00 + 3:00 Russia MSK/MSD 1991 Mar 31 2:00 2:00 E-Eur EE%sT 1995 2:00 EU EE%sT @@ -3284,7 +3719,7 @@ Zone Europe/Zaporozhye 2:20:40 - LMT 1880 # ... # # ...the European time rules are...standardized since 1981, when -# most European coun[tr]ies started DST. Before that year, only +# most European countries started DST. Before that year, only # a few countries (UK, France, Italy) had DST, each according # to own national rules. In 1981, however, DST started on # 'Apr firstSun', and not on 'Mar lastSun' as in the following diff --git a/contrib/tzdata/factory b/contrib/tzdata/factory index 839118d..336b3ef 100644 --- a/contrib/tzdata/factory +++ b/contrib/tzdata/factory @@ -1,9 +1,10 @@ # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. -# For companies who don't want to put time zone specification in -# their installation procedures. When users run date, they'll get the message. -# Also useful for the "comp.sources" version. +# For distributors who don't want to put time zone specification in +# their installation procedures. Users that run 'date' will get the +# time zone abbreviation "-00", indicating that the actual time zone +# is unknown. # Zone NAME GMTOFF RULES FORMAT Zone Factory 0 - "Local time zone must be set--use tzsetup" diff --git a/contrib/tzdata/leap-seconds.list b/contrib/tzdata/leap-seconds.list index 0980e7b..22fa785 100644 --- a/contrib/tzdata/leap-seconds.list +++ b/contrib/tzdata/leap-seconds.list @@ -47,7 +47,7 @@ # and can be ignored for many purposes. These differences # are tabulated in Circular T, which is published monthly # by the International Bureau of Weights and Measures -# (BIPM). See www.bipm.fr for more information. +# (BIPM). See www.bipm.org for more information. # # 3. The current definition of the relationship between UTC # and TAI dates from 1 January 1972. A number of different @@ -127,6 +127,15 @@ # with, since the difficulty of unambiguously representing the epoch # during the leap second does not arise. # +# Some systems implement leap seconds by amortizing the leap second +# over the last few minutes of the day. The frequency of the local +# clock is decreased (or increased) to realize the positive (or +# negative) leap second. This method removes the time step described +# above. Although the long-term behavior of the time scale is correct +# in this case, this method introduces an error during the adjustment +# period both in time and in frequency with respect to the official +# definition of UTC. +# # Questions or comments to: # Judah Levine # Time and Frequency Division @@ -134,7 +143,7 @@ # Boulder, Colorado # Judah.Levine@nist.gov # -# Last Update of leap second values: 11 January 2012 +# Last Update of leap second values: 8 July 2016 # # The following line shows this last update date in NTP timestamp # format. This is the date on which the most recent change to @@ -142,7 +151,7 @@ # be identified by the unique pair of characters in the first two # columns as shown below. # -#$ 3535228800 +#$ 3676924800 # # The NTP timestamps are in units of seconds since the NTP epoch, # which is 1 January 1900, 00:00:00. The Modified Julian Day number @@ -190,10 +199,10 @@ # current -- the update time stamp, the data and the name of the file # will not change. # -# Updated through IERS Bulletin C48 -# File expires on: 28 June 2015 +# Updated through IERS Bulletin C52 +# File expires on: 28 June 2017 # -#@ 3644438400 +#@ 3707596800 # 2272060800 10 # 1 Jan 1972 2287785600 11 # 1 Jul 1972 @@ -221,6 +230,8 @@ 3345062400 33 # 1 Jan 2006 3439756800 34 # 1 Jan 2009 3550089600 35 # 1 Jul 2012 +3644697600 36 # 1 Jul 2015 +3692217600 37 # 1 Jan 2017 # # the following special comment contains the # hash value of the data in this file computed @@ -236,4 +247,4 @@ # the hash line is also ignored in the # computation. # -#h a4862ccd c6f43c6 964f3604 85944a26 b5cfad4e +#h dacf2c42 2c4765d6 3c797af8 2cf630eb 699c8c67 diff --git a/contrib/tzdata/leapseconds b/contrib/tzdata/leapseconds index 5b5c70e..b4411f9 100644 --- a/contrib/tzdata/leapseconds +++ b/contrib/tzdata/leapseconds @@ -1,14 +1,21 @@ -# <pre> -# This file is in the public domain, so clarified as of -# 2009-05-17 by Arthur David Olson. +# Allowance for leap seconds added to each time zone file. -# Allowance for leapseconds added to each timezone file. +# This file is in the public domain. -# The International Earth Rotation Service periodically uses leap seconds -# to keep UTC to within 0.9 s of UT1 +# This file is generated automatically from the data in the public-domain +# leap-seconds.list file available from most NIST time servers. +# If the URL <ftp://time.nist.gov/pub/leap-seconds.list> does not work, +# you should be able to pick up leap-seconds.list from a secondary NIST server. +# See <http://tf.nist.gov/tf-cgi/servers.cgi> for a list of secondary servers. +# For more about leap-seconds.list, please see +# The NTP Timescale and Leap Seconds +# http://www.eecis.udel.edu/~mills/leap.html + +# The International Earth Rotation and Reference Systems Service +# periodically uses leap seconds to keep UTC to within 0.9 s of UT1 # (which measures the true angular orientation of the earth in space); see # Terry J Quinn, The BIPM and the accurate measure of time, -# Proc IEEE 79, 7 (July 1991), 894-905. +# Proc IEEE 79, 7 (July 1991), 894-905 <http://dx.doi.org/10.1109/5.84965>. # There were no leap seconds before 1972, because the official mechanism # accounting for the discrepancy between atomic time and the earth's rotation # did not exist until the early 1970s. @@ -19,8 +26,8 @@ # or # Leap YEAR MON DAY 23:59:59 - R/S -# If the leapsecond is Rolling (R) the given time is local time -# If the leapsecond is Stationary (S) the given time is UTC +# If the leapsecond is Rolling (R) the given time is local time. +# If the leapsecond is Stationary (S) the given time is UTC. # Leap YEAR MONTH DAY HH:MM:SS CORR R/S Leap 1972 Jun 30 23:59:60 + S @@ -48,53 +55,8 @@ Leap 1998 Dec 31 23:59:60 + S Leap 2005 Dec 31 23:59:60 + S Leap 2008 Dec 31 23:59:60 + S Leap 2012 Jun 30 23:59:60 + S +Leap 2015 Jun 30 23:59:60 + S +Leap 2016 Dec 31 23:59:60 + S -# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) -# -# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE -# -# -# SERVICE DE LA ROTATION TERRESTRE -# OBSERVATOIRE DE PARIS -# 61, Av. de l'Observatoire 75014 PARIS (France) -# Tel. : 33 (0) 1 40 51 22 26 -# FAX : 33 (0) 1 40 51 22 91 -# e-mail : (E-Mail Removed) -# http://hpiers.obspm.fr/eop-pc -# -# Paris, 5 January 2012 -# -# -# Bulletin C 43 -# -# To authorities responsible -# for the measurement and -# distribution of time -# -# -# UTC TIME STEP -# on the 1st of July 2012 -# -# -# A positive leap second will be introduced at the end of June 2012. -# The sequence of dates of the UTC second markers will be: -# -# 2012 June 30, 23h 59m 59s -# 2012 June 30, 23h 59m 60s -# 2012 July 1, 0h 0m 0s -# -# The difference between UTC and the International Atomic Time TAI is: -# -# from 2009 January 1, 0h UTC, to 2012 July 1 0h UTC : UTC-TAI = - 34s -# from 2012 July 1, 0h UTC, until further notice : UTC-TAI = - 35s -# -# Leap seconds can be introduced in UTC at the end of the months of December -# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every -# six months, either to announce a time step in UTC or to confirm that there -# will be no time step at the next possible date. -# -# -# Daniel GAMBIS -# Head -# Earth Orientation Center of IERS -# Observatoire de Paris, France +# Updated through IERS Bulletin C52 +# File expires on: 28 June 2017 diff --git a/contrib/tzdata/leapseconds.awk b/contrib/tzdata/leapseconds.awk new file mode 100644 index 0000000..21fe540 --- /dev/null +++ b/contrib/tzdata/leapseconds.awk @@ -0,0 +1,76 @@ +# Generate the 'leapseconds' file from 'leap-seconds.list'. + +# This file is in the public domain. + +BEGIN { + print "# Allowance for leap seconds added to each time zone file." + print "" + print "# This file is in the public domain." + print "" + print "# This file is generated automatically from the data in the public-domain" + print "# leap-seconds.list file available from most NIST time servers." + print "# If the URL <ftp://time.nist.gov/pub/leap-seconds.list> does not work," + print "# you should be able to pick up leap-seconds.list from a secondary NIST server." + print "# See <http://tf.nist.gov/tf-cgi/servers.cgi> for a list of secondary servers." + print "# For more about leap-seconds.list, please see" + print "# The NTP Timescale and Leap Seconds" + print "# http://www.eecis.udel.edu/~mills/leap.html" + print "" + print "# The International Earth Rotation and Reference Systems Service" + print "# periodically uses leap seconds to keep UTC to within 0.9 s of UT1" + print "# (which measures the true angular orientation of the earth in space); see" + print "# Terry J Quinn, The BIPM and the accurate measure of time," + print "# Proc IEEE 79, 7 (July 1991), 894-905 <http://dx.doi.org/10.1109/5.84965>." + print "# There were no leap seconds before 1972, because the official mechanism" + print "# accounting for the discrepancy between atomic time and the earth's rotation" + print "# did not exist until the early 1970s." + print "" + print "# The correction (+ or -) is made at the given time, so lines" + print "# will typically look like:" + print "# Leap YEAR MON DAY 23:59:60 + R/S" + print "# or" + print "# Leap YEAR MON DAY 23:59:59 - R/S" + print "" + print "# If the leapsecond is Rolling (R) the given time is local time." + print "# If the leapsecond is Stationary (S) the given time is UTC." + print "" + print "# Leap YEAR MONTH DAY HH:MM:SS CORR R/S" +} + +/^ *$/ { next } + +/^#\tUpdated through/ || /^#\tFile expires on:/ { + last_lines = last_lines $0 "\n" +} + +/^#/ { next } + +{ + NTP_timestamp = $1 + TAI_minus_UTC = $2 + hash_mark = $3 + one = $4 + month = $5 + year = $6 + if (old_TAI_minus_UTC) { + if (old_TAI_minus_UTC < TAI_minus_UTC) { + sign = "23:59:60\t+" + } else { + sign = "23:59:59\t-" + } + if (month == "Jan") { + year--; + month = "Dec"; + day = 31 + } else if (month == "Jul") { + month = "Jun"; + day = 30 + } + printf "Leap\t%s\t%s\t%s\t%s\tS\n", year, month, day, sign + } + old_TAI_minus_UTC = TAI_minus_UTC +} + +END { + printf "\n%s", last_lines +} diff --git a/contrib/tzdata/northamerica b/contrib/tzdata/northamerica index 7074d31..e1ed9e4 100644 --- a/contrib/tzdata/northamerica +++ b/contrib/tzdata/northamerica @@ -3,9 +3,10 @@ # also includes Central America and the Caribbean -# This data is by no means authoritative; if you think you know better, +# This file is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz@iana.org for general use in the future). +# tz@iana.org for general use in the future). For more, please see +# the file CONTRIBUTING in the tz distribution. # From Paul Eggert (1999-03-22): # A reliable and entertaining source about time zones is @@ -23,8 +24,32 @@ # was the result of his proposals at the Convention of Railroad Trunk Lines # in New York City (1869-10). His 1870 proposal was based on Washington, DC, # but in 1872-05 he moved the proposed origin to Greenwich. -# His proposal was adopted by the railroads on 1883-11-18 at 12:00, -# and the most of the country soon followed suit. + +# From Paul Eggert (2016-09-21): +# Dowd's proposal left many details unresolved, such as where to draw +# lines between time zones. The key individual who made time zones +# work in the US was William Frederick Allen - railway engineer, +# managing editor of the Travelers' Guide, and secretary of the +# General Time Convention, a railway standardization group. Allen +# spent months in dialogs with scientific and railway leaders, +# developed a workable plan to institute time zones, and presented it +# to the General Time Convention on 1883-04-11, saying that his plan +# meant "local time would be practically abolished" - a plus for +# railway scheduling. By the next convention on 1883-10-11 nearly all +# railroads had agreed and it took effect on 1883-11-18 at 12:00. +# That Sunday was called the "day of two noons", as the eastern parts +# of the new zones observed noon twice. Allen witnessed the +# transition in New York City, writing: +# +# I heard the bells of St. Paul's strike on the old time. Four +# minutes later, obedient to the electrical signal from the Naval +# Observatory ... the time-ball made its rapid descent, the chimes +# of old Trinity rang twelve measured strokes, and local time was +# abandoned, probably forever. +# +# Most of the US soon followed suit. See: +# Bartky IR. The adoption of standard time. Technol Cult 1989 Jan;30(1):25-56. +# http://dx.doi.org/10.2307/3105430 # From Paul Eggert (2005-04-16): # That 1883 transition occurred at 12:00 new time, not at 12:00 old time. @@ -59,8 +84,8 @@ # # For more about the first ten years of DST in the United States, see # Robert Garland, Ten years of daylight saving from the Pittsburgh standpoint -# (Carnegie Library of Pittsburgh, 1927) -# <http://www.clpgh.org/exhibit/dst.html>. +# (Carnegie Library of Pittsburgh, 1927). +# http://www.clpgh.org/exhibit/dst.html # # Shanks says that DST was called "War Time" in the US in 1918 and 1919. # However, DST was imposed by the Standard Time Act of 1918, which @@ -79,8 +104,8 @@ # From Arthur David Olson (2000-09-25): # Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama. # In the introduction, Oboler spoke of "Eastern Peace Time." -# An AltaVista search turned up -# <http://rowayton.org/rhs/hstaug45.html>: +# An AltaVista search turned up: +# http://rowayton.org/rhs/hstaug45.html # "When the time is announced over the radio now, it is 'Eastern Peace # Time' instead of the old familiar 'Eastern War Time.' Peace is wonderful." # (August 1945) by way of confirmation. @@ -123,7 +148,7 @@ Rule US 1918 1919 - Mar lastSun 2:00 1:00 D Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace -Rule US 1945 only - Sep 30 2:00 0 S +Rule US 1945 only - Sep lastSun 2:00 0 S Rule US 1967 2006 - Oct lastSun 2:00 0 S Rule US 1967 1973 - Apr lastSun 2:00 1:00 D Rule US 1974 only - Jan 6 2:00 1:00 D @@ -226,9 +251,14 @@ Zone PST8PDT -8:00 US P%sT # The law doesn't give abbreviations. # # From Paul Eggert (2000-01-08), following a heads-up from Rives McDow: -# Public law 106-564 (2000-12-23) introduced the abbreviation -# "Chamorro Standard Time" for time in Guam and the Northern Marianas. -# See the file "australasia". +# Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time" +# for time in Guam and the Northern Marianas. See the file "australasia". +# +# From Paul Eggert (2015-04-17): +# HST and HDT are standardized abbreviations for Hawaii-Aleutian +# standard and daylight times. See section 9.47 (p 234) of the +# U.S. Government Printing Office Style Manual (2008) +# http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf # From Arthur David Olson, 2005-08-09 # The following was signed into law on 2005-08-08. @@ -268,7 +298,7 @@ Zone PST8PDT -8:00 US P%sT # From Paul Eggert (2005-08-26): # According to today's Huntsville Times -# <http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1> +# http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1 # a few towns on Alabama's "eastern border with Georgia, such as Phenix City # in Russell County, Lanett in Chambers County and some towns in Lee County, # set their watches and clocks on Eastern time." It quotes H.H. "Bubba" @@ -276,6 +306,12 @@ Zone PST8PDT -8:00 US P%sT # time zone, but we do go by the Eastern time zone because so many people work # in Columbus." +# From Paul Eggert (2014-09-06): +# Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208 +# says that New York City Hall time was 3 minutes 58.4 seconds fast of +# Eastern time (i.e., -4:56:01.6) just before the 1883 switch. Round to the +# nearest second. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule NYC 1920 only - Mar lastSun 2:00 1:00 D Rule NYC 1920 only - Oct lastSun 2:00 0 S @@ -313,6 +349,16 @@ Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58 # Statue 175 closer in synch with the US Congress' intent.... # http://www.legis.state.wi.us/2007/data/acts/07Act3.pdf +# From an email administrator of the City of Fort Pierre, SD (2015-12-21): +# Fort Pierre is technically located in the Mountain time zone as is +# the rest of Stanley County. Most of Stanley County and Fort Pierre +# uses the Central time zone due to doing most of their business in +# Pierre so it simplifies schedules. I have lived in Stanley County +# all my life and it has been that way since I can remember. (43 years!) +# +# From Paul Eggert (2015-12-25): +# Assume this practice predates 1970, so Fort Pierre can use America/Chicago. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Chicago 1920 only - Jun 13 2:00 1:00 D Rule Chicago 1920 1921 - Oct lastSun 2:00 0 S @@ -323,15 +369,15 @@ Rule Chicago 1955 1966 - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:09:24 -6:00 US C%sT 1920 - -6:00 Chicago C%sT 1936 Mar 1 2:00 - -5:00 - EST 1936 Nov 15 2:00 + -6:00 Chicago C%sT 1936 Mar 1 2:00 + -5:00 - EST 1936 Nov 15 2:00 -6:00 Chicago C%sT 1942 -6:00 US C%sT 1946 -6:00 Chicago C%sT 1967 -6:00 US C%sT # Oliver County, ND switched from mountain to central time on 1992-10-25. Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:14:48 - -7:00 US M%sT 1992 Oct 25 02:00 + -7:00 US M%sT 1992 Oct 25 2:00 -6:00 US C%sT # Morton County, ND, switched from mountain to central time on # 2003-10-26, except for the area around Mandan which was already central time. @@ -340,8 +386,8 @@ Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:14:48 # Jones, Mellette, and Todd Counties in South Dakota; # but in practice these other counties were already observing central time. # See <http://www.epa.gov/fedrgstr/EPA-IMPACT/2003/October/Day-28/i27056.htm>. -Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21 - -7:00 US M%sT 2003 Oct 26 02:00 +Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21 + -7:00 US M%sT 2003 Oct 26 2:00 -6:00 US C%sT # From Josh Findley (2011-01-21): @@ -358,8 +404,8 @@ Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21 # at 47 degrees 15' 51" N, 101 degrees 46' 40" W, which yields an offset # of 6h47'07". -Zone America/North_Dakota/Beulah -6:47:07 - LMT 1883 Nov 18 12:12:53 - -7:00 US M%sT 2010 Nov 7 2:00 +Zone America/North_Dakota/Beulah -6:47:07 - LMT 1883 Nov 18 12:12:53 + -7:00 US M%sT 2010 Nov 7 2:00 -6:00 US C%sT # US mountain time, represented by Denver @@ -391,11 +437,42 @@ Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04 # north of the Salmon River, and the towns of Burgdorf and Warren), # Nevada (except West Wendover), Oregon (except the northern 3/4 of # Malheur county), and Washington + +# From Paul Eggert (2016-08-20): +# In early February 1948, in response to California's electricity shortage, +# PG&E changed power frequency from 60 to 59.5 Hz during daylight hours, +# causing electric clocks to lose six minutes per day. (This did not change +# legal time, and is not part of the data here.) See: +# Ross SA. An energy crisis from the past: Northern California in 1948. +# Working Paper No. 8, Institute of Governmental Studies, UC Berkeley, +# 1973-11. http://escholarship.org/uc/item/8x22k30c +# +# In another measure to save electricity, DST was instituted from 1948-03-14 +# at 02:01 to 1949-01-16 at 02:00, with the governor having the option to move +# the fallback transition earlier. See pages 3-4 of: +# http://clerk.assembly.ca.gov/sites/clerk.assembly.ca.gov/files/archive/Statutes/1948/48Vol1_Chapters.pdf +# +# In response: +# +# Governor Warren received a torrent of objecting mail, and it is not too much +# to speculate that the objections to Daylight Saving Time were one important +# factor in the defeat of the Dewey-Warren Presidential ticket in California. +# -- Ross, p 25 +# +# On December 8 the governor exercised the option, setting the date to January 1 +# (LA Times 1948-12-09). The transition time was 02:00 (LA Times 1949-01-01). +# +# Despite the controversy, in 1949 California voters approved Proposition 12, +# which established DST from April's last Sunday at 01:00 until September's +# last Sunday at 02:00. This was amended by 1962's Proposition 6, which changed +# the fall-back date to October's last Sunday. See: +# http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1501&context=ca_ballot_props +# http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1636&context=ca_ballot_props # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER -Rule CA 1948 only - Mar 14 2:00 1:00 D +Rule CA 1948 only - Mar 14 2:01 1:00 D Rule CA 1949 only - Jan 1 2:00 0 S -Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D +Rule CA 1950 1966 - Apr lastSun 1:00 1:00 D Rule CA 1950 1961 - Sep lastSun 2:00 0 S Rule CA 1962 1966 - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -469,15 +546,21 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02 # For lack of better information, assume that Metlakatla's # abandonment of use of daylight saving resulted from the 1983 vote. +# From Steffen Thorsen (2015-11-09): +# It seems Metlakatla did go off PST on Sunday, November 1, changing +# their time to AKST and are going to follow Alaska's DST, switching +# between AKST and AKDT from now on.... +# http://www.krbd.org/2015/10/30/annette-island-times-they-are-a-changing/ + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 -8:57:41 - LMT 1900 Aug 20 12:00 -8:00 - PST 1942 -8:00 US P%sT 1946 -8:00 - PST 1969 - -8:00 US P%sT 1980 Apr 27 2:00 - -9:00 US Y%sT 1980 Oct 26 2:00 - -8:00 US P%sT 1983 Oct 30 2:00 + -8:00 US P%sT 1980 Apr 27 2:00 + -9:00 US Y%sT 1980 Oct 26 2:00 + -8:00 US P%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT Zone America/Sitka 14:58:47 - LMT 1867 Oct 18 @@ -485,7 +568,7 @@ Zone America/Sitka 14:58:47 - LMT 1867 Oct 18 -8:00 - PST 1942 -8:00 US P%sT 1946 -8:00 - PST 1969 - -8:00 US P%sT 1983 Oct 30 2:00 + -8:00 US P%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18 @@ -493,8 +576,9 @@ Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18 -8:00 - PST 1942 -8:00 US P%sT 1946 -8:00 - PST 1969 - -8:00 US P%sT 1983 Oct 30 2:00 - -8:00 - PST + -8:00 US P%sT 1983 Oct 30 2:00 + -8:00 - PST 2015 Nov 1 2:00 + -9:00 US AK%sT Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 -9:18:55 - LMT 1900 Aug 20 12:00 -9:00 - YST 1942 @@ -509,7 +593,7 @@ Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18 -10:00 US CAT/CAPT 1946 # Peace -10:00 - CAT 1967 Apr -10:00 - AHST 1969 - -10:00 US AH%sT 1983 Oct 30 2:00 + -10:00 US AH%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT Zone America/Nome 12:58:21 - LMT 1867 Oct 18 @@ -518,7 +602,7 @@ Zone America/Nome 12:58:21 - LMT 1867 Oct 18 -11:00 US N%sT 1946 -11:00 - NST 1967 Apr -11:00 - BST 1969 - -11:00 US B%sT 1983 Oct 30 2:00 + -11:00 US B%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT Zone America/Adak 12:13:21 - LMT 1867 Oct 18 @@ -527,9 +611,9 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 -11:00 US N%sT 1946 -11:00 - NST 1967 Apr -11:00 - BST 1969 - -11:00 US B%sT 1983 Oct 30 2:00 + -11:00 US B%sT 1983 Oct 30 2:00 -10:00 US AH%sT 1983 Nov 30 - -10:00 US HA%sT + -10:00 US H%sT # The following switches don't quite make our 1970 cutoff. # # Shanks writes that part of southwest Alaska (e.g. Aniak) @@ -545,7 +629,7 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 # Minutes of the Unalaska City Council Meeting, January 10, 1967: # "Except for St. Paul and Akutan, Unalaska is the only important # location not on Alaska Standard Time. The following resolution was -# made by William Robinson and seconded by Henry Swanson: Be it +# made by William Robinson and seconded by Henry Swanson: Be it # resolved that the City of Unalaska hereby goes to Alaska Standard # Time as of midnight Friday, January 13, 1967 (1 A.M. Saturday, # January 14, Alaska Standard Time.) This resolution was passed with @@ -578,7 +662,7 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 # year, the standard time of this Territory shall be advanced one # hour...This Act shall take effect upon its approval. Approved this 26th # day of April, A. D. 1933. LAWRENCE M JUDD, Governor of the Territory of -# Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is +# Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is # hereby repealed...This Act shall take effect upon its approval, upon # which date the standard time of this Territory shall be restored to # that existing immediately prior to the taking effect of said Act 90. @@ -588,14 +672,14 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 # Note that 1933-05-21 was a Sunday. # We're left to guess the time of day when Act 163 was approved; guess noon. -Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 #Schmitt&Cox - -10:30 - HST 1933 Apr 30 2:00 #Laws 1933 - -10:30 1:00 HDT 1933 May 21 12:00 #Laws 1933+12 - -10:30 - HST 1942 Feb 09 2:00 #Schmitt&Cox+2 - -10:30 1:00 HDT 1945 Sep 30 2:00 #Schmitt&Cox+2 - -10:30 - HST 1947 Jun 8 2:00 #Schmitt&Cox+2 +# Zone NAME GMTOFF RULES FORMAT [UNTIL] +Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 + -10:30 - HST 1933 Apr 30 2:00 + -10:30 1:00 HDT 1933 May 21 12:00 + -10:30 - HST 1942 Feb 9 2:00 + -10:30 1:00 HDT 1945 Sep 30 2:00 + -10:30 - HST 1947 Jun 8 2:00 -10:00 - HST - Link Pacific/Honolulu Pacific/Johnston # Now we turn to US areas that have diverged from the consensus since 1970. @@ -621,10 +705,11 @@ Link Pacific/Honolulu Pacific/Johnston # Shanks says the 1944 experiment came to an end on 1944-03-17. # Go with the Arizona State Library instead. +# Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 11:31:42 - -7:00 US M%sT 1944 Jan 1 00:01 - -7:00 - MST 1944 Apr 1 00:01 - -7:00 US M%sT 1944 Oct 1 00:01 + -7:00 US M%sT 1944 Jan 1 0:01 + -7:00 - MST 1944 Apr 1 0:01 + -7:00 US M%sT 1944 Oct 1 0:01 -7:00 - MST 1967 -7:00 US M%sT 1968 Mar 21 -7:00 - MST @@ -648,16 +733,15 @@ Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 11:31:42 # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11 - -8:00 US P%sT 1923 May 13 2:00 + -8:00 US P%sT 1923 May 13 2:00 -7:00 US M%sT 1974 - -7:00 - MST 1974 Feb 3 2:00 + -7:00 - MST 1974 Feb 3 2:00 -7:00 US M%sT # Indiana # # For a map of Indiana's time zone regions, see: -# What time is it in Indiana? (2006-03-01) -# <http://www.mccsc.edu/time.html> +# http://en.wikipedia.org/wiki/Time_in_Indiana # # From Paul Eggert (2007-08-17): # Since 1970, most of Indiana has been like America/Indiana/Indianapolis, @@ -683,9 +767,6 @@ Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11 # that they would be ambiguous if we left them at the 'America' level. # So we reluctantly put them all in a subdirectory 'America/Indiana'. -# From Paul Eggert (2005-08-16): -# http://www.mccsc.edu/time.html says that Indiana will use DST starting 2006. - # From Paul Eggert (2014-06-26): # https://www.federalregister.gov/articles/2006/01/20/06-563/standard-time-zone-boundary-in-the-state-of-indiana # says "DOT is relocating the time zone boundary in Indiana to move Starke, @@ -707,13 +788,13 @@ Rule Indianapolis 1941 only - Jun 22 2:00 1:00 D Rule Indianapolis 1941 1954 - Sep lastSun 2:00 0 S Rule Indianapolis 1946 1954 - Apr lastSun 2:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22 +Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22 -6:00 US C%sT 1920 -6:00 Indianapolis C%sT 1942 -6:00 US C%sT 1946 - -6:00 Indianapolis C%sT 1955 Apr 24 2:00 - -5:00 - EST 1957 Sep 29 2:00 - -6:00 - CST 1958 Apr 27 2:00 + -6:00 Indianapolis C%sT 1955 Apr 24 2:00 + -5:00 - EST 1957 Sep 29 2:00 + -6:00 - CST 1958 Apr 27 2:00 -5:00 - EST 1969 -5:00 US E%sT 1971 -5:00 - EST 2006 @@ -729,10 +810,10 @@ Rule Marengo 1954 1960 - Sep lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Marengo -5:45:23 - LMT 1883 Nov 18 12:14:37 -6:00 US C%sT 1951 - -6:00 Marengo C%sT 1961 Apr 30 2:00 + -6:00 Marengo C%sT 1961 Apr 30 2:00 -5:00 - EST 1969 - -5:00 US E%sT 1974 Jan 6 2:00 - -6:00 1:00 CDT 1974 Oct 27 2:00 + -5:00 US E%sT 1974 Jan 6 2:00 + -6:00 1:00 CDT 1974 Oct 27 2:00 -5:00 US E%sT 1976 -5:00 - EST 2006 -5:00 US E%sT @@ -753,11 +834,11 @@ Rule Vincennes 1962 1963 - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Vincennes -5:50:07 - LMT 1883 Nov 18 12:09:53 -6:00 US C%sT 1946 - -6:00 Vincennes C%sT 1964 Apr 26 2:00 + -6:00 Vincennes C%sT 1964 Apr 26 2:00 -5:00 - EST 1969 -5:00 US E%sT 1971 - -5:00 - EST 2006 Apr 2 2:00 - -6:00 US C%sT 2007 Nov 4 2:00 + -5:00 - EST 2006 Apr 2 2:00 + -6:00 US C%sT 2007 Nov 4 2:00 -5:00 US E%sT # # Perry County, Indiana, switched from eastern to central time in April 2006. @@ -774,10 +855,10 @@ Rule Perry 1962 1963 - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Tell_City -5:47:03 - LMT 1883 Nov 18 12:12:57 -6:00 US C%sT 1946 - -6:00 Perry C%sT 1964 Apr 26 2:00 + -6:00 Perry C%sT 1964 Apr 26 2:00 -5:00 - EST 1969 -5:00 US E%sT 1971 - -5:00 - EST 2006 Apr 2 2:00 + -5:00 - EST 2006 Apr 2 2:00 -6:00 US C%sT # # Pike County, Indiana moved from central to eastern time in 1977, @@ -790,11 +871,11 @@ Rule Pike 1961 1964 - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Petersburg -5:49:07 - LMT 1883 Nov 18 12:10:53 -6:00 US C%sT 1955 - -6:00 Pike C%sT 1965 Apr 25 2:00 - -5:00 - EST 1966 Oct 30 2:00 - -6:00 US C%sT 1977 Oct 30 2:00 - -5:00 - EST 2006 Apr 2 2:00 - -6:00 US C%sT 2007 Nov 4 2:00 + -6:00 Pike C%sT 1965 Apr 25 2:00 + -5:00 - EST 1966 Oct 30 2:00 + -6:00 US C%sT 1977 Oct 30 2:00 + -5:00 - EST 2006 Apr 2 2:00 + -6:00 US C%sT 2007 Nov 4 2:00 -5:00 US E%sT # # Starke County, Indiana moved from central to eastern time in 1991, @@ -812,10 +893,10 @@ Rule Starke 1959 1961 - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Knox -5:46:30 - LMT 1883 Nov 18 12:13:30 -6:00 US C%sT 1947 - -6:00 Starke C%sT 1962 Apr 29 2:00 - -5:00 - EST 1963 Oct 27 2:00 - -6:00 US C%sT 1991 Oct 27 2:00 - -5:00 - EST 2006 Apr 2 2:00 + -6:00 Starke C%sT 1962 Apr 29 2:00 + -5:00 - EST 1963 Oct 27 2:00 + -6:00 US C%sT 1991 Oct 27 2:00 + -5:00 - EST 2006 Apr 2 2:00 -6:00 US C%sT # # Pulaski County, Indiana, switched from eastern to central time in @@ -828,17 +909,17 @@ Rule Pulaski 1957 1960 - Sep lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Winamac -5:46:25 - LMT 1883 Nov 18 12:13:35 -6:00 US C%sT 1946 - -6:00 Pulaski C%sT 1961 Apr 30 2:00 + -6:00 Pulaski C%sT 1961 Apr 30 2:00 -5:00 - EST 1969 -5:00 US E%sT 1971 - -5:00 - EST 2006 Apr 2 2:00 - -6:00 US C%sT 2007 Mar 11 2:00 + -5:00 - EST 2006 Apr 2 2:00 + -6:00 US C%sT 2007 Mar 11 2:00 -5:00 US E%sT # # Switzerland County, Indiana, did not observe DST from 1973 through 2005. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Vevay -5:40:16 - LMT 1883 Nov 18 12:19:44 - -6:00 US C%sT 1954 Apr 25 2:00 + -6:00 US C%sT 1954 Apr 25 2:00 -5:00 - EST 1969 -5:00 US E%sT 1973 -5:00 - EST 2006 @@ -859,16 +940,16 @@ Zone America/Kentucky/Louisville -5:43:02 - LMT 1883 Nov 18 12:16:58 -6:00 US C%sT 1921 -6:00 Louisville C%sT 1942 -6:00 US C%sT 1946 - -6:00 Louisville C%sT 1961 Jul 23 2:00 + -6:00 Louisville C%sT 1961 Jul 23 2:00 -5:00 - EST 1968 - -5:00 US E%sT 1974 Jan 6 2:00 - -6:00 1:00 CDT 1974 Oct 27 2:00 + -5:00 US E%sT 1974 Jan 6 2:00 + -6:00 1:00 CDT 1974 Oct 27 2:00 -5:00 US E%sT # # Wayne County, Kentucky # # From Lake Cumberland LIFE -# <http://www.lake-cumberland.com/life/archive/news990129time.shtml> +# http://www.lake-cumberland.com/life/archive/news990129time.shtml # (1999-01-29) via WKYM-101.7: # Clinton County has joined Wayne County in asking the DoT to change from # the Central to the Eastern time zone.... The Wayne County government made @@ -887,7 +968,7 @@ Zone America/Kentucky/Louisville -5:43:02 - LMT 1883 Nov 18 12:16:58 # From Paul Eggert (2001-07-16): # The final rule was published in the # Federal Register 65, 160 (2000-08-17), pp 50154-50158. -# <http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22> +# http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22 # Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36 -6:00 US C%sT 1946 @@ -913,7 +994,7 @@ Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36 # West Wendover, NV officially switched from Pacific to mountain time on # 1999-10-31. See the # Federal Register 64, 203 (1999-10-21), pp 56705-56707. -# <http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15> +# http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15 # However, the Federal Register says that West Wendover already operated # on mountain time, and the rule merely made this official; # hence a separate tz entry is not needed. @@ -951,12 +1032,12 @@ Rule Detroit 1967 only - Jun 14 2:00 1:00 D Rule Detroit 1967 only - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Detroit -5:32:11 - LMT 1905 - -6:00 - CST 1915 May 15 2:00 + -6:00 - CST 1915 May 15 2:00 -5:00 - EST 1942 -5:00 US E%sT 1946 -5:00 Detroit E%sT 1973 -5:00 US E%sT 1975 - -5:00 - EST 1975 Apr 27 2:00 + -5:00 - EST 1975 Apr 27 2:00 -5:00 US E%sT # # Dickinson, Gogebic, Iron, and Menominee Counties, Michigan, @@ -969,8 +1050,8 @@ Rule Menominee 1966 only - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00 -6:00 US C%sT 1946 - -6:00 Menominee C%sT 1969 Apr 27 2:00 - -5:00 - EST 1973 Apr 29 2:00 + -6:00 Menominee C%sT 1969 Apr 27 2:00 + -5:00 - EST 1973 Apr 29 2:00 -6:00 US C%sT # Navassa @@ -987,19 +1068,19 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00 ################################################################################ -# From Paul Eggert (2006-03-22): -# A good source for time zone historical data outside the U.S. is +# From Paul Eggert (2014-10-31): +# +# Unless otherwise specified, the source for data through 1990 is: # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003). +# Unfortunately this book contains many errors and cites no sources. # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries -# of the IATA's data after 1990. -# -# Except where otherwise noted, Shanks & Pottenger is the source for -# entries through 1990, and IATA SSIM is the source for entries afterwards. +# of the IATA's data after 1990. Except where otherwise noted, +# IATA SSIM is the source for entries after 1990. # # Other sources occasionally used include: # @@ -1050,7 +1131,7 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00 # From Paul Eggert (1994-11-22): # Alas, this sort of thing must be handled by localization software. -# Unless otherwise specified, the data for Canada are all from Shanks +# Unless otherwise specified, the data entries for Canada are all from Shanks # & Pottenger. # From Chris Walton (2006-04-01, 2006-04-25, 2006-06-26, 2007-01-31, @@ -1097,17 +1178,16 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00 # An amendment to the Interpretation Act was registered on February 19/2007.... # http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf -# From Paul Eggert (2006-04-25): +# From Paul Eggert (2014-10-18): # H. David Matthews and Mary Vincent's map # "It's about TIME", _Canadian Geographic_ (September-October 1998) -# <http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp> +# http://www.canadiangeographic.ca/Magazine/SO98/alacarte.asp # contains detailed boundaries for regions observing nonstandard # time and daylight saving time arrangements in Canada circa 1998. # -# INMS, the Institute for National Measurement Standards in Ottawa, has -# information about standard and daylight saving time zones in Canada. -# <http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php> -# (updated periodically). +# National Research Council Canada maintains info about time zones and DST. +# http://www.nrc-cnrc.gc.ca/eng/services/time/time_zones.html +# http://www.nrc-cnrc.gc.ca/eng/services/time/faq/index.html#Q5 # Its unofficial information is often taken from Matthews and Vincent. # From Paul Eggert (2006-06-27): @@ -1220,17 +1300,26 @@ Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay -3:30 - NST 1936 -3:30 StJohns N%sT 1942 May 11 -3:30 Canada N%sT 1946 - -3:30 StJohns N%sT 1966 Mar 15 2:00 + -3:30 StJohns N%sT 1966 Mar 15 2:00 -4:00 StJohns A%sT 2011 Nov -4:00 Canada A%sT # west Labrador, Nova Scotia, Prince Edward I -# From Paul Eggert (2006-03-22): +# From Brian Inglis (2015-07-20): +# From the historical weather station records available at: +# https://weatherspark.com/history/28351/1971/Sydney-Nova-Scotia-Canada +# Sydney shares the same time history as Glace Bay, so was +# likely to be the same across the island.... +# Sydney, as the capital and most populous location, or Cape Breton, would +# have been better names for the zone had we known this in 1996. + +# From Paul Eggert (2015-07-20): # Shanks & Pottenger write that since 1970 most of this region has been like # Halifax. Many locales did not observe peacetime DST until 1972; -# Glace Bay, NS is the largest that we know of. +# the Cape Breton area, represented by Glace Bay, is the largest we know of +# (Glace Bay was perhaps not the best name choice but no point changing now). # Shanks & Pottenger also write that Liverpool, NS was the only town # in Canada to observe DST in 1971 but not 1970; for now we'll assume # this is a typo. @@ -1281,7 +1370,7 @@ Rule Halifax 1962 1973 - Oct lastSun 2:00 0 S Zone America/Halifax -4:14:24 - LMT 1902 Jun 15 -4:00 Halifax A%sT 1918 -4:00 Canada A%sT 1919 - -4:00 Halifax A%sT 1942 Feb 9 2:00s + -4:00 Halifax A%sT 1942 Feb 9 2:00s -4:00 Canada A%sT 1946 -4:00 Halifax A%sT 1974 -4:00 Canada A%sT @@ -1328,14 +1417,9 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9 # Quebec -# From Paul Eggert (2013-08-30): -# Since 1970 most of Quebec has been like Toronto. -# However, because earlier versions of the tz database mistakenly relied on data -# from Shanks & Pottenger saying that Quebec differed from Ontario after 1970, -# a separate entry was created for most of Quebec. We're loath to lose -# its pre-1970 info, even though the tz database is normally limited to -# zones that differ after 1970, so keep this otherwise out-of-scope entry. - +# From Paul Eggert (2015-03-24): +# See America/Toronto for most of Quebec, including Montreal. +# # Matthews and Vincent (1998) also write that Quebec east of the -63 # meridian is supposed to observe AST, but residents as far east as # Natashquan use EST/EDT, and residents east of Natashquan use AST. @@ -1349,47 +1433,10 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9 # For lack of better info, guess this practice began around 1970, contra to # Shanks & Pottenger who have this region observing AST/ADT. -# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Mont 1917 only - Mar 25 2:00 1:00 D -Rule Mont 1917 only - Apr 24 0:00 0 S -Rule Mont 1919 only - Mar 31 2:30 1:00 D -Rule Mont 1919 only - Oct 25 2:30 0 S -Rule Mont 1920 only - May 2 2:30 1:00 D -Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S -Rule Mont 1921 only - May 1 2:00 1:00 D -Rule Mont 1922 only - Apr 30 2:00 1:00 D -Rule Mont 1924 only - May 17 2:00 1:00 D -Rule Mont 1924 1926 - Sep lastSun 2:30 0 S -Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D -# The 1927-to-1937 rules can be expressed more simply as -# Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D -# Rule Mont 1927 1937 - Sep lastSat 24:00 0 S -# The rules below avoid use of 24:00 -# (which pre-1998 versions of zic cannot handle). -Rule Mont 1927 only - May 1 0:00 1:00 D -Rule Mont 1927 1932 - Sep lastSun 0:00 0 S -Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D -Rule Mont 1932 only - May 1 0:00 1:00 D -Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D -Rule Mont 1933 only - Oct 1 0:00 0 S -Rule Mont 1934 1939 - Sep lastSun 0:00 0 S -Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D -Rule Mont 1945 1948 - Sep lastSun 2:00 0 S -Rule Mont 1949 1950 - Oct lastSun 2:00 0 S -Rule Mont 1951 1956 - Sep lastSun 2:00 0 S -Rule Mont 1957 1973 - Oct lastSun 2:00 0 S - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Blanc-Sablon -3:48:28 - LMT 1884 -4:00 Canada A%sT 1970 -4:00 - AST -Zone America/Montreal -4:54:16 - LMT 1884 - -5:00 Mont E%sT 1918 - -5:00 Canada E%sT 1919 - -5:00 Mont E%sT 1942 Feb 9 2:00s - -5:00 Canada E%sT 1946 - -5:00 Mont E%sT 1974 - -5:00 Canada E%sT # Ontario @@ -1419,7 +1466,7 @@ Zone America/Montreal -4:54:16 - LMT 1884 # says that Atikokan, Ontario currently does not observe DST, # but will vote on 11-10 whether to use EST/EDT. # He also writes that the Ontario Time Act (1990, Chapter T.9) -# <http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html> +# http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html # says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT. # Officially Atikokan is therefore on CST/CDT, and most likely this report # concerns a non-official time observed as a matter of local practice. @@ -1509,26 +1556,26 @@ Zone America/Montreal -4:54:16 - LMT 1884 # ing in 1930. The information for the province of Quebec is definite, # for the other provinces only approximate: # -# Province Daylight saving time used +# Province Daylight saving time used # Prince Edward Island Not used. # Nova Scotia In Halifax only. # New Brunswick In St. John only. # Quebec In the following places: -# Montreal Lachine -# Quebec Mont-Royal -# Lévis Iberville -# St. Lambert Cap de la Madelèine -# Verdun Loretteville -# Westmount Richmond -# Outremont St. Jérôme -# Longueuil Greenfield Park -# Arvida Waterloo -# Chambly-Canton Beaulieu -# Melbourne La Tuque -# St. Théophile Buckingham +# Montreal Lachine +# Quebec Mont-Royal +# Lévis Iberville +# St. Lambert Cap de la Madelèine +# Verdun Loretteville +# Westmount Richmond +# Outremont St. Jérôme +# Longueuil Greenfield Park +# Arvida Waterloo +# Chambly-Canton Beaulieu +# Melbourne La Tuque +# St. Théophile Buckingham # Ontario Used generally in the cities and towns along -# the southerly part of the province. Not -# used in the northwesterly part. +# the southerly part of the province. Not +# used in the northwesterly part. # Manitoba Not used. # Saskatchewan In Regina only. # Alberta Not used. @@ -1597,7 +1644,7 @@ Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Toronto -5:17:32 - LMT 1895 -5:00 Canada E%sT 1919 - -5:00 Toronto E%sT 1942 Feb 9 2:00s + -5:00 Toronto E%sT 1942 Feb 9 2:00s -5:00 Canada E%sT 1946 -5:00 Toronto E%sT 1974 -5:00 Canada E%sT @@ -1610,16 +1657,16 @@ Zone America/Thunder_Bay -5:57:00 - LMT 1895 -5:00 Canada E%sT Zone America/Nipigon -5:53:04 - LMT 1895 -5:00 Canada E%sT 1940 Sep 29 - -5:00 1:00 EDT 1942 Feb 9 2:00s + -5:00 1:00 EDT 1942 Feb 9 2:00s -5:00 Canada E%sT Zone America/Rainy_River -6:18:16 - LMT 1895 -6:00 Canada C%sT 1940 Sep 29 - -6:00 1:00 CDT 1942 Feb 9 2:00s + -6:00 1:00 CDT 1942 Feb 9 2:00s -6:00 Canada C%sT Zone America/Atikokan -6:06:28 - LMT 1895 -6:00 Canada C%sT 1940 Sep 29 - -6:00 1:00 CDT 1942 Feb 9 2:00s - -6:00 Canada C%sT 1945 Sep 30 2:00 + -6:00 1:00 CDT 1942 Feb 9 2:00s + -6:00 Canada C%sT 1945 Sep 30 2:00 -5:00 - EST @@ -1755,12 +1802,12 @@ Rule Swift 1959 only - Oct lastSun 2:00 0 S Rule Swift 1960 1961 - Sep lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Regina -6:58:36 - LMT 1905 Sep - -7:00 Regina M%sT 1960 Apr lastSun 2:00 + -7:00 Regina M%sT 1960 Apr lastSun 2:00 -6:00 - CST Zone America/Swift_Current -7:11:20 - LMT 1905 Sep - -7:00 Canada M%sT 1946 Apr lastSun 2:00 + -7:00 Canada M%sT 1946 Apr lastSun 2:00 -7:00 Regina M%sT 1950 - -7:00 Swift M%sT 1972 Apr lastSun 2:00 + -7:00 Swift M%sT 1972 Apr lastSun 2:00 -6:00 - CST @@ -1818,25 +1865,25 @@ Zone America/Edmonton -7:33:52 - LMT 1906 Sep # Unfortunately the exact date for the time change in June 1918 remains # unknown and will be difficult to ascertain. I e-mailed Tammy a few months # ago to ask if Sunday June 2 was a reasonable guess. She said it was just -# as plausible as any other date (in June). She also said that after writing the -# article she had discovered another time change in 1916; this is the subject -# of another article which she wrote in October 2010. +# as plausible as any other date (in June). She also said that after writing +# the article she had discovered another time change in 1916; this is the +# subject of another article which she wrote in October 2010. # http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56 # Here is a summary of the three clock change events in Creston's history: # 1. 1884 or 1885: adoption of Mountain Standard Time (GMT-7) # Exact date unknown # 2. Oct 1916: switch to Pacific Standard Time (GMT-8) -# Exact date in October unknown; Sunday October 1 is a reasonable guess. +# Exact date in October unknown; Sunday October 1 is a reasonable guess. # 3. June 1918: switch to Pacific Daylight Time (GMT-7) # Exact date in June unknown; Sunday June 2 is a reasonable guess. -# note#1: +# note 1: # On Oct 27/1918 when daylight saving ended in the rest of Canada, # Creston did not change its clocks. -# note#2: +# note 2: # During WWII when the Federal Government legislated a mandatory clock change, # Creston did not oblige. -# note#3: +# note 3: # There is no guarantee that Creston will remain on Mountain Standard Time # (UTC-7) forever. # The subject was debated at least once this year by the town Council. @@ -1851,6 +1898,22 @@ Zone America/Edmonton -7:33:52 - LMT 1906 Sep # The transition dates (and times) are guesses. +# From Matt Johnson (2015-09-21): +# Fort Nelson, BC, Canada will cancel DST this year. So while previously they +# were aligned with America/Vancouver, they're now aligned with +# America/Dawson_Creek. +# http://www.northernrockies.ca/EN/meta/news/archives/2015/northern-rockies-time-change.html +# +# From Tim Parenti (2015-09-23): +# This requires a new zone for the Northern Rockies Regional Municipality, +# America/Fort_Nelson. The resolution of 2014-12-08 was reached following a +# 2014-11-15 poll with nearly 75% support. Effectively, the municipality has +# been on MST (-0700) like Dawson Creek since it advanced its clocks on +# 2015-03-08. +# +# From Paul Eggert (2015-09-23): +# Shanks says Fort Nelson did not observe DST in 1946, unlike Vancouver. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Vanc 1918 only - Apr 14 2:00 1:00 D Rule Vanc 1918 only - Oct 27 2:00 0 S @@ -1867,7 +1930,13 @@ Zone America/Vancouver -8:12:28 - LMT 1884 -8:00 Canada P%sT Zone America/Dawson_Creek -8:00:56 - LMT 1884 -8:00 Canada P%sT 1947 - -8:00 Vanc P%sT 1972 Aug 30 2:00 + -8:00 Vanc P%sT 1972 Aug 30 2:00 + -7:00 - MST +Zone America/Fort_Nelson -8:10:47 - LMT 1884 + -8:00 Vanc P%sT 1946 + -8:00 - PST 1947 + -8:00 Vanc P%sT 1987 + -8:00 Canada P%sT 2015 Mar 8 2:00 -7:00 - MST Zone America/Creston -7:46:04 - LMT 1884 -7:00 - MST 1916 Oct 1 @@ -1880,22 +1949,120 @@ Zone America/Creston -7:46:04 - LMT 1884 # Dawson switched to PST in 1973. Inuvik switched to MST in 1979. # Mathew Englander (1996-10-07) gives the following refs: # * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68, -# c. 7 defines Yukon standard time as UTC-9. This is still valid; +# c. 7 defines Yukon standard time as UTC-9.... # see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1). +# [http://canlii.ca/t/7vhg] # * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00. # * O.I.C. 1980/02 established DST. # * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00. -# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go -# with Englander. -# From Chris Walton (2006-06-26): -# Here is a link to the old daylight saving portion of the interpretation -# act which was last updated in 1987: -# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf + +# From Brian Inglis (2015-04-14): +# +# I tried to trace the history of Yukon time and found the following +# regulations, giving the reference title and URL if found, regulation name, +# and relevant quote if available. Each regulation specifically revokes its +# predecessor. The final reference is to the current Interpretation Act +# authorizing and resulting from these regulatory changes. +# +# Only recent regulations were retrievable via Yukon government site search or +# index, and only some via Canadian legal sources. Other sources used include +# articles titled "Standard Time and Time Zones in Canada" from JRASC via ADS +# Abstracts, cited by ADO for 1932 ..., and updated versions from 1958 and +# 1970 quoted below; each article includes current extracts from provincial +# and territorial ST and DST regulations at the end, summaries and details of +# standard times and daylight saving time at many locations across Canada, +# with time zone maps, tables and calculations for Canadian Sunrise, Sunset, +# and LMST; they also cover many countries and global locations, with a chart +# and table showing current Universal Time offsets, and may be useful as +# another source of information for 1970 and earlier. +# +# * Standard Time and Time Zones in Canada; Smith, C.C.; JRASC, Vol. 26, +# pp.49-77; February 1932; SAO/NASA Astrophysics Data System (ADS) +# http://adsabs.harvard.edu/abs/1932JRASC..26...49S from p.75: +# Yukon Interpretation Ordinance +# Yukon standard time is the local mean time at the one hundred and +# thirty-fifth meridian. +# +# * Standard Time and Time Zones in Canada; Smith, C.C.; Thomson, Malcolm M.; +# JRASC, Vol. 52, pp.193-223; October 1958; SAO/NASA Astrophysics Data System +# (ADS) http://adsabs.harvard.edu/abs/1958JRASC..52..193S from pp.220-1: +# Yukon Interpretation Ordinance, 1955, Chap. 16. +# +# (1) Subject to this section, standard time shall be reckoned as nine +# hours behind Greenwich Time and called Yukon Standard Time. +# +# (2) Notwithstanding subsection (1), the Commissioner may make regulations +# varying the manner of reckoning standard time. +# +# * Yukon Territory Commissioner's Order 1966-20 Interpretation Ordinance +# http://? - no online source found +# +# * Standard Time and Time Zones in Canada; Thomson, Malcolm M.; JRASC, +# Vol. 64, pp.129-162; June 1970; SAO/NASA Astrophysics Data System (ADS) +# http://adsabs.harvard.edu/abs/1970JRASC..64..129T from p.156: Yukon +# Territory Commissioner's Order 1967-59 Interpretation Ordinance ... +# +# 1. Commissioner's Order 1966-20 dated at Whitehorse in the Yukon +# Territory on 27th January, 1966, is hereby revoked. +# +# 2. Yukon (East) Standard Time as defined by section 36 of the +# Interpretation Ordinance from and after mid-night on the 28th day of May, +# 1967 shall be reckoned in the same manner as Pacific Standard Time, that +# is to say, eight hours behind Greenwich Time in the area of the Yukon +# Territory lying east of the 138th degree longitude west. +# +# 3. In the remainder of the Territory, lying west of the 138th degree +# longitude west, Yukon (West) Standard Time shall be reckoned as nine +# hours behind Greenwich Time. +# +# * Yukon Standard Time defined as Pacific Standard Time, YCO 1973/214 +# http://www.canlii.org/en/yk/laws/regu/yco-1973-214/latest/yco-1973-214.html +# C.O. 1973/214 INTERPRETATION ACT ... +# +# 1. Effective October 28, 1973 Commissioner's Order 1967/59 is hereby +# revoked. +# +# 2. Yukon Standard Time as defined by section 36 of the Interpretation +# Act from and after midnight on the twenty-eighth day of October, 1973 +# shall be reckoned in the same manner as Pacific Standard Time, that is +# to say eight hours behind Greenwich Time. +# +# * O.I.C. 1980/02 INTERPRETATION ACT +# http://? - no online source found +# +# * Yukon Daylight Saving Time, YOIC 1987/56 +# http://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html +# O.I.C. 1987/056 INTERPRETATION ACT ... +# +# In every year between +# (a) two o'clock in the morning in the first Sunday in April, and +# (b) two o'clock in the morning in the last Sunday in October, +# Standard Time shall be reckoned as seven hours behind Greenwich Time and +# called Yukon Daylight Saving Time. +# ... +# Dated ... 9th day of March, A.D., 1987. +# +# * Yukon Daylight Saving Time 2006, YOIC 2006/127 +# http://www.canlii.org/en/yk/laws/regu/yoic-2006-127/latest/yoic-2006-127.html +# O.I.C. 2006/127 INTERPRETATION ACT ... +# +# 1. In Yukon each year the time for general purposes shall be 7 hours +# behind Greenwich mean time during the period commencing at two o'clock +# in the forenoon on the second Sunday of March and ending at two o'clock +# in the forenoon on the first Sunday of November and shall be called +# Yukon Daylight Saving Time. +# +# 2. Order-in-Council 1987/56 is revoked. +# +# 3. This order comes into force January 1, 2007. +# +# * Interpretation Act, RSY 2002, c 125 +# http://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html # From Rives McDow (1999-09-04): # Nunavut ... moved ... to incorporate the whole territory into one time zone. # Nunavut moves to single time zone Oct. 31 -# <http://www.nunatsiaq.com/nunavut/nvt90903_13.html> +# http://www.nunatsiaq.com/nunavut/nvt90903_13.html # # From Antoine Leca (1999-09-06): # We then need to create a new timezone for the Kitikmeot region of Nunavut @@ -1903,7 +2070,7 @@ Zone America/Creston -7:46:04 - LMT 1884 # From Paul Eggert (1999-09-20): # Basic Facts: The New Territory -# <http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html> +# http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html # (1999) reports that Pangnirtung operates on eastern time, # and that Coral Harbour does not observe DST. We don't know when # Pangnirtung switched to eastern time; we'll guess 1995. @@ -1932,8 +2099,8 @@ Zone America/Creston -7:46:04 - LMT 1884 # the current state of affairs. # From Michaela Rodrigue, writing in the -# Nunatsiaq News (1999-11-19) -# <http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html>: +# Nunatsiaq News (1999-11-19): +# http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html # Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones, # central - or Nunavut time - for government offices, and eastern time # for municipal offices and schools.... Igloolik [was similar but then] @@ -1980,10 +2147,7 @@ Zone America/Creston -7:46:04 - LMT 1884 # [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).] # From Gwillim Law (2005-05-21): -# According to maps at -# http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SWE.jpg -# http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SSE.jpg -# (both dated 2003), and +# According to ... # http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp # (from a 1998 Canadian Geographic article), the de facto and de jure time # for Southampton Island (at the north end of Hudson Bay) is UTC-5 all year @@ -1992,9 +2156,11 @@ Zone America/Creston -7:46:04 - LMT 1884 # predates the creation of Nunavut, it probably goes back many years.... # The Inuktitut name of Coral Harbour is Sallit, but it's rarely used. # -# From Paul Eggert (2005-07-26): +# From Paul Eggert (2014-10-17): # For lack of better information, assume that Southampton Island observed -# daylight saving only during wartime. +# daylight saving only during wartime. Gwillim Law's email also +# mentioned maps now maintained by National Research Council Canada; +# see above for an up-to-date link. # From Chris Walton (2007-03-01): # ... the community of Resolute (located on Cornwallis Island in @@ -2080,48 +2246,48 @@ Rule NT_YK 1980 2006 - Oct lastSun 2:00 0 S Rule NT_YK 1987 2006 - Apr Sun>=1 2:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] # aka Panniqtuuq -Zone America/Pangnirtung 0 - zzz 1921 # trading post est. - -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 - -5:00 Canada E%sT 1999 Oct 31 2:00 - -6:00 Canada C%sT 2000 Oct 29 2:00 +Zone America/Pangnirtung 0 - -00 1921 # trading post est. + -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 + -5:00 Canada E%sT 1999 Oct 31 2:00 + -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 Canada E%sT # formerly Frobisher Bay -Zone America/Iqaluit 0 - zzz 1942 Aug # Frobisher Bay est. - -5:00 NT_YK E%sT 1999 Oct 31 2:00 - -6:00 Canada C%sT 2000 Oct 29 2:00 +Zone America/Iqaluit 0 - -00 1942 Aug # Frobisher Bay est. + -5:00 NT_YK E%sT 1999 Oct 31 2:00 + -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 Canada E%sT # aka Qausuittuq -Zone America/Resolute 0 - zzz 1947 Aug 31 # Resolute founded - -6:00 NT_YK C%sT 2000 Oct 29 2:00 - -5:00 - EST 2001 Apr 1 3:00 - -6:00 Canada C%sT 2006 Oct 29 2:00 - -5:00 - EST 2007 Mar 11 3:00 +Zone America/Resolute 0 - -00 1947 Aug 31 # Resolute founded + -6:00 NT_YK C%sT 2000 Oct 29 2:00 + -5:00 - EST 2001 Apr 1 3:00 + -6:00 Canada C%sT 2006 Oct 29 2:00 + -5:00 - EST 2007 Mar 11 3:00 -6:00 Canada C%sT # aka Kangiqiniq -Zone America/Rankin_Inlet 0 - zzz 1957 # Rankin Inlet founded - -6:00 NT_YK C%sT 2000 Oct 29 2:00 - -5:00 - EST 2001 Apr 1 3:00 +Zone America/Rankin_Inlet 0 - -00 1957 # Rankin Inlet founded + -6:00 NT_YK C%sT 2000 Oct 29 2:00 + -5:00 - EST 2001 Apr 1 3:00 -6:00 Canada C%sT # aka Iqaluktuuttiaq -Zone America/Cambridge_Bay 0 - zzz 1920 # trading post est.? - -7:00 NT_YK M%sT 1999 Oct 31 2:00 - -6:00 Canada C%sT 2000 Oct 29 2:00 - -5:00 - EST 2000 Nov 5 0:00 - -6:00 - CST 2001 Apr 1 3:00 +Zone America/Cambridge_Bay 0 - -00 1920 # trading post est.? + -7:00 NT_YK M%sT 1999 Oct 31 2:00 + -6:00 Canada C%sT 2000 Oct 29 2:00 + -5:00 - EST 2000 Nov 5 0:00 + -6:00 - CST 2001 Apr 1 3:00 -7:00 Canada M%sT -Zone America/Yellowknife 0 - zzz 1935 # Yellowknife founded? +Zone America/Yellowknife 0 - -00 1935 # Yellowknife founded? -7:00 NT_YK M%sT 1980 -7:00 Canada M%sT -Zone America/Inuvik 0 - zzz 1953 # Inuvik founded - -8:00 NT_YK P%sT 1979 Apr lastSun 2:00 +Zone America/Inuvik 0 - -00 1953 # Inuvik founded + -8:00 NT_YK P%sT 1979 Apr lastSun 2:00 -7:00 NT_YK M%sT 1980 -7:00 Canada M%sT Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20 - -9:00 NT_YK Y%sT 1966 Jul 1 2:00 + -9:00 NT_YK Y%sT 1967 May 28 0:00 -8:00 NT_YK P%sT 1980 -8:00 Canada P%sT Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 - -9:00 NT_YK Y%sT 1973 Oct 28 0:00 + -9:00 NT_YK Y%sT 1973 Oct 28 0:00 -8:00 NT_YK P%sT 1980 -8:00 Canada P%sT @@ -2130,11 +2296,11 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # Mexico -# From Paul Eggert (2001-03-05): +# From Paul Eggert (2014-12-07): # The Investigation and Analysis Service of the # Mexican Library of Congress (MLoC) has published a # history of Mexican local time (in Spanish) -# <http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/>. +# http://www.diputados.gob.mx/bibliot/publica/inveyana/polisoc/horver/index.htm # # Here are the discrepancies between Shanks & Pottenger (S&P) and the MLoC. # (In all cases we go with the MLoC.) @@ -2179,8 +2345,8 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # -------------- End Forwarded Message -------------- # From Paul Eggert (1996-06-12): # For an English translation of the decree, see -# "Diario Oficial: Time Zone Changeover" (1996-01-04) -# <http://mexico-travel.com/extra/timezone_eng.html>. +# "Diario Oficial: Time Zone Changeover" (1996-01-04). +# http://mexico-travel.com/extra/timezone_eng.html # From Rives McDow (1998-10-08): # The State of Quintana Roo has reverted back to central STD and DST times @@ -2205,7 +2371,7 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # January 17, 2000 - The Energy Secretary, Ernesto Martens, announced # that Summer Time will be reduced from seven to five months, starting # this year.... -# <http://www.publico.com.mx/scripts/texto3.asp?action=pagina&pag=21&pos=p&secc=naci&date=01/17/2001> +# http://www.publico.com.mx/scripts/texto3.asp?action=pagina&pag=21&pos=p&secc=naci&date=01/17/2001 # [translated], says "summer time will ... take effect on the first Sunday # in May, and end on the last Sunday of September. @@ -2219,13 +2385,13 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # observation of Daylight Saving Time. # Official statute published by the Energy Department -# <http://www.conae.gob.mx/ahorro/decretohorver2001.html#decre> +# http://www.conae.gob.mx/ahorro/decretohorver2001.html#decre # (2001-02-01) shows Baja and Chihauhua as still using US DST rules, # and Sonora with no DST. This was reported by Jesper Nørgaard (2001-02-03). # From Paul Eggert (2001-03-03): # -# <http://www.latimes.com/news/nation/20010303/t000018766.html> +# http://www.latimes.com/news/nation/20010303/t000018766.html # James F. Smith writes in today's LA Times # * Sonora will continue to observe standard time. # * Last week Mexico City's mayor Andrés Manuel López Obrador decreed that @@ -2303,6 +2469,40 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # efecto desde las dos horas del segundo domingo de marzo y concluirá a # las dos horas del primer domingo de noviembre. +# From Steffen Thorsen (2014-12-08), translated by Gwillim Law: +# The Mexican state of Quintana Roo will likely change to EST in 2015. +# +# http://www.unioncancun.mx/articulo/2014/12/04/medio-ambiente/congreso-aprueba-una-hora-mas-de-sol-en-qroo +# "With this change, the time conflict that has existed between the municipios +# of Quintana Roo and the municipio of Felipe Carrillo Puerto may come to an +# end. The latter declared itself in rebellion 15 years ago when a time change +# was initiated in Mexico, and since then it has refused to change its time +# zone along with the rest of the country." +# +# From Steffen Thorsen (2015-01-14), translated by Gwillim Law: +# http://sipse.com/novedades/confirman-aplicacion-de-nueva-zona-horaria-para-quintana-roo-132331.html +# "...the new time zone will come into effect at two o'clock on the first Sunday +# of February, when we will have to advance the clock one hour from its current +# time..." +# Also, the new zone will not use DST. +# +# From Carlos Raúl Perasso (2015-02-02): +# The decree that modifies the Mexican Hour System Law has finally +# been published at the Diario Oficial de la Federación +# http://www.dof.gob.mx/nota_detalle.php?codigo=5380123&fecha=31/01/2015 +# It establishes 5 zones for Mexico: +# 1- Zona Centro (Central Zone): Corresponds to longitude 90 W, +# includes most of Mexico, excluding what's mentioned below. +# 2- Zona Pacífico (Pacific Zone): Longitude 105 W, includes the +# states of Baja California Sur; Chihuahua; Nayarit (excluding Bahía +# de Banderas which lies in Central Zone); Sinaloa and Sonora. +# 3- Zona Noroeste (Northwest Zone): Longitude 120 W, includes the +# state of Baja California. +# 4- Zona Sureste (Southeast Zone): Longitude 75 W, includes the state +# of Quintana Roo. +# 5- The islands, reefs and keys shall take their timezone from the +# longitude they are located at. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mexico 1939 only - Feb 5 0:00 1:00 D Rule Mexico 1939 only - Jun 25 0:00 0 S @@ -2323,35 +2523,48 @@ Rule Mexico 2002 max - Oct lastSun 2:00 0 S Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56 -6:00 - CST 1981 Dec 23 -5:00 Mexico E%sT 1998 Aug 2 2:00 - -6:00 Mexico C%sT + -6:00 Mexico C%sT 2015 Feb 1 2:00 + -5:00 - EST # Campeche, Yucatán; represented by Mérida Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32 -6:00 - CST 1981 Dec 23 -5:00 - EST 1982 Dec 2 -6:00 Mexico C%sT -# Coahuila, Durango, Nuevo León, Tamaulipas (near US border) +# Coahuila, Nuevo León, Tamaulipas (near US border) +# This includes the following municipalities: +# in Coahuila: Ocampo, Acuña, Zaragoza, Jiménez, Piedras Negras, Nava, +# Guerrero, Hidalgo. +# in Nuevo León: Anáhuac, Los Aldama. +# in Tamaulipas: Nuevo Laredo, Guerrero, Mier, Miguel Alemán, Camargo, +# Gustavo Díaz Ordaz, Reynosa, Río Bravo, Valle Hermoso, Matamoros. +# See: Inicia mañana Horario de Verano en zona fronteriza, El Universal, +# 2016-03-12 +# http://www.eluniversal.com.mx/articulo/estados/2016/03/12/inicia-manana-horario-de-verano-en-zona-fronteriza Zone America/Matamoros -6:40:00 - LMT 1921 Dec 31 23:20:00 -6:00 - CST 1988 -6:00 US C%sT 1989 -6:00 Mexico C%sT 2010 -6:00 US C%sT -# Coahuila, Durango, Nuevo León, Tamaulipas (away from US border) +# Durango; Coahuila, Nuevo León, Tamaulipas (away from US border) Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44 -6:00 - CST 1988 -6:00 US C%sT 1989 -6:00 Mexico C%sT # Central Mexico -Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 +Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 -7:00 - MST 1931 May 1 23:00 -6:00 - CST 1931 Oct -7:00 - MST 1932 Apr 1 - -6:00 Mexico C%sT 2001 Sep 30 02:00 + -6:00 Mexico C%sT 2001 Sep 30 2:00 -6:00 - CST 2002 Feb 20 -6:00 Mexico C%sT # Chihuahua (near US border) -Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20 +# This includes the municipalities of Janos, Ascensión, Juárez, Guadalupe, +# Práxedis G Guerrero, Coyame del Sotol, Ojinaga, and Manuel Benavides. +# (See the 2016-03-12 El Universal source mentioned above.) +Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 -7:00 - MST 1931 May 1 23:00 @@ -2359,7 +2572,7 @@ Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20 -7:00 - MST 1932 Apr 1 -6:00 - CST 1996 -6:00 Mexico C%sT 1998 - -6:00 - CST 1998 Apr Sun>=1 3:00 + -6:00 - CST 1998 Apr Sun>=1 3:00 -7:00 Mexico M%sT 2010 -7:00 US M%sT # Chihuahua (away from US border) @@ -2371,7 +2584,7 @@ Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40 -7:00 - MST 1932 Apr 1 -6:00 - CST 1996 -6:00 Mexico C%sT 1998 - -6:00 - CST 1998 Apr Sun>=1 3:00 + -6:00 - CST 1998 Apr Sun>=1 3:00 -7:00 Mexico M%sT # Sonora Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08 @@ -2435,10 +2648,10 @@ Zone America/Bahia_Banderas -7:01:00 - LMT 1921 Dec 31 23:59:00 -6:00 - CST 1942 Apr 24 -7:00 - MST 1949 Jan 14 -8:00 - PST 1970 - -7:00 Mexico M%sT 2010 Apr 4 2:00 + -7:00 Mexico M%sT 2010 Apr 4 2:00 -6:00 Mexico C%sT -# Baja California (near US border) +# Baja California Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 -7:00 - MST 1924 -8:00 - PST 1927 Jun 10 23:00 @@ -2458,25 +2671,6 @@ Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 -8:00 US P%sT 2002 Feb 20 -8:00 Mexico P%sT 2010 -8:00 US P%sT -# Baja California (away from US border) -Zone America/Santa_Isabel -7:39:28 - LMT 1922 Jan 1 0:20:32 - -7:00 - MST 1924 - -8:00 - PST 1927 Jun 10 23:00 - -7:00 - MST 1930 Nov 15 - -8:00 - PST 1931 Apr 1 - -8:00 1:00 PDT 1931 Sep 30 - -8:00 - PST 1942 Apr 24 - -8:00 1:00 PWT 1945 Aug 14 23:00u - -8:00 1:00 PPT 1945 Nov 12 # Peace - -8:00 - PST 1948 Apr 5 - -8:00 1:00 PDT 1949 Jan 14 - -8:00 - PST 1954 - -8:00 CA P%sT 1961 - -8:00 - PST 1976 - -8:00 US P%sT 1996 - -8:00 Mexico P%sT 2001 - -8:00 US P%sT 2002 Feb 20 - -8:00 Mexico P%sT # From Paul Eggert (2006-03-22): # Formerly there was an America/Ensenada zone, which differed from # America/Tijuana only in that it did not observe DST from 1976 @@ -2489,19 +2683,21 @@ Zone America/Santa_Isabel -7:39:28 - LMT 1922 Jan 1 0:20:32 # other than America/Tijuana for Baja, but it's not clear yet what its # name or contents should be. # +# From Paul Eggert (2015-10-08): +# Formerly there was an America/Santa_Isabel zone, but this appears to +# have come from a misreading of +# http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010 +# It has been moved to the 'backward' file. +# +# # Revillagigedo Is # no information ############################################################################### # Anguilla -# See America/Port_of_Spain. - # Antigua and Barbuda -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Antigua -4:07:12 - LMT 1912 Mar 2 - -5:00 - EST 1951 - -4:00 - AST +# See America/Port_of_Spain. # Bahamas # @@ -2531,8 +2727,8 @@ Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D Rule Barb 1979 only - Sep 30 2:00 0 S Rule Barb 1980 only - Sep 25 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown - -3:58:29 - BMT 1932 # Bridgetown Mean Time +Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown + -3:58:29 - BMT 1932 # Bridgetown Mean Time -4:00 Barb A%sT # Belize @@ -2562,16 +2758,13 @@ Zone America/Belize -5:52:48 - LMT 1912 Apr # http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135 # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton - -4:00 - AST 1974 Apr 28 2:00 +Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton + -4:00 - AST 1974 Apr 28 2:00 -4:00 Canada A%sT 1976 -4:00 US A%sT # Cayman Is -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown - -5:07:11 - KMT 1912 Feb # Kingston Mean Time - -5:00 - EST +# See America/Panama. # Costa Rica @@ -2587,7 +2780,7 @@ Rule CR 1991 only - Jul 1 0:00 0 S Rule CR 1992 only - Mar 15 0:00 0 S # There are too many San Josés elsewhere, so we'll use 'Costa Rica'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José +Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José -5:36:13 - SJMT 1921 Jan 15 # San José Mean Time -6:00 CR C%sT # Coco @@ -2831,8 +3024,8 @@ Rule DR 1972 1974 - Jan 21 0:00 0 S Zone America/Santo_Domingo -4:39:36 - LMT 1890 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT -5:00 DR E%sT 1974 Oct 27 - -4:00 - AST 2000 Oct 29 02:00 - -5:00 US E%sT 2000 Dec 3 01:00 + -4:00 - AST 2000 Oct 29 2:00 + -5:00 US E%sT 2000 Dec 3 1:00 -4:00 - AST # El Salvador @@ -2843,7 +3036,7 @@ Rule Salv 1987 1988 - Sep lastSun 0:00 0 S # There are too many San Salvadors elsewhere, so use America/El_Salvador # instead of America/San_Salvador. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador +Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador -6:00 Salv C%sT # Grenada @@ -2864,7 +3057,7 @@ Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador # From Paul Eggert (2006-06-22): # The Ministry of Energy and Mines, press release CP-15/2006 # (2006-04-19), says DST ends at 24:00. See -# <http://www.sieca.org.gt/Sitio_publico/Energeticos/Doc/Medidas/Cambio_Horario_Nac_190406.pdf>. +# http://www.sieca.org.gt/Sitio_publico/Energeticos/Doc/Medidas/Cambio_Horario_Nac_190406.pdf # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Guat 1973 only - Nov 25 0:00 1:00 D @@ -2934,6 +3127,13 @@ Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5 # http://radiovision2000haiti.net/public/haiti-avis-changement-dheure-dimanche/ # http://www.canalplushaiti.net/?p=6714 +# From Steffen Thorsen (2016-03-12): +# Jean Antoine, editor of www.haiti-reference.com informed us that Haiti +# are not going on DST this year. Several other resources confirm this: ... +# http://www.radiotelevisioncaraibes.com/presse/heure_d_t_pas_de_changement_d_heure_pr_vu_pour_cet_ann_e.html +# http://www.vantbefinfo.com/changement-dheure-pas-pour-haiti/ +# http://news.anmwe.com/haiti-lheure-nationale-ne-sera-ni-avancee-ni-reculee-cette-annee/ + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Haiti 1983 only - May 8 0:00 1:00 D Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D @@ -2944,8 +3144,8 @@ Rule Haiti 1988 1997 - Apr Sun>=1 1:00s 1:00 D Rule Haiti 1988 1997 - Oct lastSun 1:00s 0 S Rule Haiti 2005 2006 - Apr Sun>=1 0:00 1:00 D Rule Haiti 2005 2006 - Oct lastSun 0:00 0 S -Rule Haiti 2012 max - Mar Sun>=8 2:00 1:00 D -Rule Haiti 2012 max - Nov Sun>=1 2:00 0 S +Rule Haiti 2012 2015 - Mar Sun>=8 2:00 1:00 D +Rule Haiti 2012 2015 - Nov Sun>=1 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Port-au-Prince -4:49:20 - LMT 1890 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT @@ -2967,8 +3167,8 @@ Zone America/Port-au-Prince -4:49:20 - LMT 1890 # http://www.worldtimezone.com/dst_news/dst_news_honduras04.html # From Paul Eggert (2006-08-08): -# Also see Diario El Heraldo, The country returns to standard time (2006-08-08) -# <http://www.elheraldo.hn/nota.php?nid=54941&sec=12>. +# Also see Diario El Heraldo, The country returns to standard time (2006-08-08). +# http://www.elheraldo.hn/nota.php?nid=54941&sec=12 # It mentions executive decree 18-2006. # From Steffen Thorsen (2006-08-17): @@ -2995,17 +3195,28 @@ Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr # Shanks & Pottenger give -5:07:12, but Milne records -5:07:10.41 from an # unspecified official document, and says "This time is used throughout the # island". Go with Milne. Round to the nearest second as required by zic. +# +# Shanks & Pottenger give April 28 for the 1974 spring-forward transition, but +# Lance Neita writes that Prime Minister Michael Manley decreed it January 5. +# Assume Neita meant Jan 6 02:00, the same as the US. Neita also writes that +# Manley's supporters associated this act with Manley's nickname "Joshua" +# (recall that in the Bible the sun stood still at Joshua's request), +# and with the Rod of Correction which Manley said he had received from +# Haile Selassie, Emperor of Ethiopia. See: +# Neita L. The politician in all of us. Jamaica Observer 2014-09-20 +# http://www.jamaicaobserver.com/columns/The-politician-in-all-of-us_17573647 +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Jamaica -5:07:11 - LMT 1890 # Kingston +Zone America/Jamaica -5:07:11 - LMT 1890 # Kingston -5:07:11 - KMT 1912 Feb # Kingston Mean Time - -5:00 - EST 1974 Apr 28 2:00 + -5:00 - EST 1974 -5:00 US E%sT 1984 -5:00 - EST # Martinique # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France - -4:04:20 - FFMT 1911 May # Fort-de-France MT +Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France + -4:04:20 - FFMT 1911 May # Fort-de-France MT -4:00 - AST 1980 Apr 6 -4:00 1:00 ADT 1980 Sep 28 -4:00 - AST @@ -3034,7 +3245,7 @@ Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France # From Gwillim Law (2005-04-21): # The Associated Press story on the time change, which can be found at # http://www.lapalmainteractivo.com/guias/content/gen/ap/America_Latina/AMC_GEN_NICARAGUA_HORA.html -# and elsewhere, says (fifth paragraph, translated from Spanish): "The last +# and elsewhere, says (fifth paragraph, translated from Spanish): "The last # time that a change of clocks was applied to save energy was in the year 2000 # during the Arnoldo Alemán administration."... # The northamerica file says that Nicaragua has been on UTC-6 continuously @@ -3072,7 +3283,7 @@ Zone America/Managua -5:45:08 - LMT 1890 -5:45:12 - MMT 1934 Jun 23 # Managua Mean Time? -6:00 - CST 1973 May -5:00 - EST 1975 Feb 16 - -6:00 Nic C%sT 1992 Jan 1 4:00 + -6:00 Nic C%sT 1992 Jan 1 4:00 -5:00 - EST 1992 Sep 24 -6:00 - CST 1993 -5:00 - EST 1997 @@ -3081,13 +3292,14 @@ Zone America/Managua -5:45:08 - LMT 1890 # Panama # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Panama -5:18:08 - LMT 1890 - -5:19:36 - CMT 1908 Apr 22 # Colón Mean Time + -5:19:36 - CMT 1908 Apr 22 # Colón Mean Time -5:00 - EST +Link America/Panama America/Cayman # Puerto Rico # There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan +Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan -4:00 - AST 1942 May 3 -4:00 US A%sT 1946 -4:00 - AST @@ -3099,7 +3311,7 @@ Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan # St Pierre and Miquelon # There are too many St Pierres elsewhere, so we'll use 'Miquelon'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre +Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre -4:00 - AST 1980 May -3:00 - PMST 1987 # Pierre & Miquelon Time -3:00 Canada PM%sT @@ -3110,7 +3322,7 @@ Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre # Turks and Caicos # # From Chris Dunn in -# <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007> +# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007 # (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the # daylight saving dates for time changes have been adjusted to match # the recent U.S. change of dates. @@ -3123,20 +3335,21 @@ Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre # Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time" # indicating that the normal ET rules are followed. # -# From Paul Eggert (2006-05-01): -# Shanks & Pottenger say they use US DST rules, but IATA SSIM (1991/1998) -# says they switch at midnight. Go with Shanks & Pottenger. +# From Paul Eggert (2014-08-19): +# The 2014-08-13 Cabinet meeting decided to stay on UT -04 year-round. See: +# http://tcweeklynews.com/daylight-savings-time-to-be-maintained-p5353-127.htm +# Model this as a switch from EST/EDT to AST ... +# From Chris Walton (2014-11-04): +# ... the TCI government appears to have delayed the switch to +# "permanent daylight saving time" by one year.... +# http://tcweeklynews.com/time-change-to-go-ahead-this-november-p5437-127.htm # -# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule TC 1979 1986 - Apr lastSun 2:00 1:00 D -Rule TC 1979 2006 - Oct lastSun 2:00 0 S -Rule TC 1987 2006 - Apr Sun>=1 2:00 1:00 D -Rule TC 2007 max - Mar Sun>=8 2:00 1:00 D -Rule TC 2007 max - Nov Sun>=1 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Grand_Turk -4:44:32 - LMT 1890 - -5:07:11 - KMT 1912 Feb # Kingston Mean Time - -5:00 TC E%sT + -5:07:11 - KMT 1912 Feb # Kingston Mean Time + -5:00 - EST 1979 + -5:00 US E%sT 2015 Nov Sun>=1 2:00 + -4:00 - AST # British Virgin Is # Virgin Is diff --git a/contrib/tzdata/southamerica b/contrib/tzdata/southamerica index de1f15e..5321451 100644 --- a/contrib/tzdata/southamerica +++ b/contrib/tzdata/southamerica @@ -1,27 +1,28 @@ # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. -# This data is by no means authoritative; if you think you know better, +# This file is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz@iana.org for general use in the future). +# tz@iana.org for general use in the future). For more, please see +# the file CONTRIBUTING in the tz distribution. -# From Paul Eggert (2006-03-22): -# A good source for time zone historical data outside the U.S. is +# From Paul Eggert (2014-10-31): +# +# Unless otherwise specified, the source for data through 1990 is: # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003). -# -# For data circa 1899, a common source is: -# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 -# <http://www.jstor.org/stable/1774359>. +# Unfortunately this book contains many errors and cites no sources. # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries -# of the IATA's data after 1990. +# of the IATA's data after 1990. Except where otherwise noted, +# IATA SSIM is the source for entries after 1990. # -# Except where otherwise noted, Shanks & Pottenger is the source for -# entries through 1990, and IATA SSIM is the source for entries afterwards. +# For data circa 1899, a common source is: +# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. +# http://www.jstor.org/stable/1774359 # # Earlier editions of these tables used the North American style (e.g. ARST and # ARDT for Argentine Standard and Daylight Time), but the following quote @@ -29,7 +30,7 @@ # I suggest the use of _Summer time_ instead of the more cumbersome # _daylight-saving time_. _Summer time_ seems to be in general use # in Europe and South America. -# -- E O Cutler, _New York Times_ (1937-02-14), quoted in +# -- E O Cutler, _New York Times_ (1937-02-14), quoted in # H L Mencken, _The American Language: Supplement I_ (1960), p 466 # # Earlier editions of these tables also used the North American style @@ -130,7 +131,7 @@ Rule Arg 2000 only - Mar 3 0:00 0 - # Timezone Law (which never was effectively applied) will (would?) be # in effect.... The article is at # http://ar.clarin.com/diario/2001-06-06/e-01701.htm -# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted +# ... The Law itself is "Ley No. 25155", sanctioned on 1999-08-25, enacted # 1999-09-17, and published 1999-09-21. The official publication is at: # http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF # Regretfully, you have to subscribe (and pay) for the on-line version.... @@ -174,21 +175,17 @@ Rule Arg 2000 only - Mar 3 0:00 0 - # http://www.worldtimezone.com/dst_news/dst_news_argentina03.html # http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) -# From Rodrigo Severo (2008-10-06): -# Here is some info available at a Gentoo bug related to TZ on Argentina's DST: -# ... -# ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 ------- -# Hi, there is a problem with timezone-data-2008e and maybe with -# timezone-data-2008f -# Argentinian law [Number] 25.155 is no longer valid. +# From Juan Manuel Docile in https://bugs.gentoo.org/240339 (2008-10-07) +# via Rodrigo Severo: +# Argentinian law No. 25.155 is no longer valid. # http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm -# The new one is law [Number] 26.350 +# The new one is law No. 26.350 # http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm # So there is no summer time in Argentina for now. # From Mariano Absatz (2008-10-20): -# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina -# From 2008-10-19 until 2009-03-15 +# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST +# in Argentina from 2008-10-19 until 2009-03-15. # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 # @@ -197,14 +194,16 @@ Rule Arg 2000 only - Mar 3 0:00 0 - # Pampa, Neuquén, Rio Negro, Chubut, Santa Cruz and Tierra del Fuego # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 # -# Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying -# it will not apply DST either (even when it was not included in Decree 1705/2008) +# Press release 235 dated Saturday October 18th, from the Government of the +# Province of Jujuy saying it will not apply DST either (even when it was not +# included in Decree 1705/2008). # http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc # From fullinet (2009-10-18): # As announced in # http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 -# (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change") +# (an official .gob.ar) under title: "Sin Cambio de Hora" +# (English: "No hour change"). # # "Por el momento, el Gobierno Nacional resolvió no modificar la hora # oficial, decisión que estaba en estudio para su implementación el @@ -225,9 +224,9 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # It's Law No. 7,210. This change is due to a public power emergency, so for # now we'll assume it's for this year only. # -# From Paul Eggert (2006-03-22): -# Hora de verano para la Republica Argentina (2003-06-08) -# <http://www.spicasc.net/horvera.html> +# From Paul Eggert (2014-08-09): +# Hora de verano para la República Argentina +# http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html # says that standard time in Argentina from 1894-10-31 # to 1920-05-01 was -4:16:48.25. Go with this more-precise value # over Shanks & Pottenger. @@ -300,7 +299,7 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # confirms that upon request the provinces San Juan and Mendoza # refused to follow San Luis in this change. # -# The change is supposed to take place Monday the 21.st at 0:00 +# The change is supposed to take place Monday the 21st at 0:00 # hours. As far as I understand it if this goes ahead, we need # a new timezone for San Luis (although there are also documented # independent changes in the southamerica file of San Luis in @@ -332,9 +331,9 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # back in 2004, when these provinces changed to UTC-4 for a few days, I # mailed them personally and never got an answer). -# From Paul Eggert (2008-06-30): -# Unless otherwise specified, data are from Shanks & Pottenger through 1992, -# from the IATA otherwise. As noted below, Shanks & Pottenger say that +# From Paul Eggert (2014-08-12): +# Unless otherwise specified, data entries are from Shanks & Pottenger through +# 1992, from the IATA otherwise. As noted below, Shanks & Pottenger say that # America/Cordoba split into 6 subregions during 1991/1992, one of which # was America/San_Luis, but we haven't verified this yet so for now we'll # keep America/Cordoba a single region rather than splitting it into the @@ -394,7 +393,7 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # ... # From Alexander Krivenyshev (2010-04-09): -# According to news reports from El Diario de la Republica Province San +# According to news reports from El Diario de la República Province San # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time # after April 11, 2010 - will continue to have same time as rest of # Argentina (UTC-3) (no DST). @@ -411,10 +410,10 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # stuck on Summer daylight savings time even though the summer is over. # From Paul Eggert (2013-09-05): -# Perhaps San Luis operates on the legal fiction that it is at UTC-4 +# Perhaps San Luis operates on the legal fiction that it is at -04 # with perpetual summer time, but ordinary usage typically seems to -# just say it's at UTC-3; see, for example, -# <http://es.wikipedia.org/wiki/Hora_oficial_argentina>. +# just say it's at -03; see, for example, +# http://es.wikipedia.org/wiki/Hora_oficial_argentina # We've documented similar situations as being plain changes to # standard time, so let's do that here too. This does not change UTC # offsets, only tm_isdst and the time zone abbreviations. One minor @@ -427,8 +426,8 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Buenos Aires (BA), Capital Federal (CF), -Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 - -4:16:48 - CMT 1920 May # Córdoba Mean Time +Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 + -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 @@ -578,8 +577,8 @@ Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 -3:00 - ART # # Santa Cruz (SC) -Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 - -4:16:48 - CMT 1920 May # Córdoba Mean Time +Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 + -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 @@ -590,8 +589,8 @@ Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 -3:00 - ART # # Tierra del Fuego, Antártida e Islas del Atlántico Sur (TF) -Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 - -4:16:48 - CMT 1920 May # Córdoba Mean Time +Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 + -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 @@ -685,7 +684,7 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # Oficial da União"...) in Brazil there are changes in the timezones, # effective today (00:00am at June 24, 2008) as follows: # -# a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the +# a) The timezone UTC+5 is extinguished, with all the Acre state and the # part of the Amazonas state that had this timezone now being put to the # timezone UTC+4 # b) The whole Pará state now is put at timezone UTC+3, instead of just @@ -722,8 +721,8 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # From Paul Eggert (2002-10-10): # The official decrees referenced below are mostly taken from -# Decretos sobre o Horário de Verão no Brasil -# <http://pcdsh01.on.br/DecHV.html>. +# Decretos sobre o Horário de Verão no Brasil. +# http://pcdsh01.on.br/DecHV.html # From Steffen Thorsen (2008-08-29): # As announced by the government and many newspapers in Brazil late @@ -768,7 +767,7 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # [ and in a second message (same day): ] # I found the decree. # -# DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011 +# DECRETO No. 7.584, DE 13 DE OUTUBRO DE 2011 # Link : # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 @@ -986,7 +985,7 @@ Zone America/Belem -3:13:56 - LMT 1914 # West Pará includes Altamira, Óbidos, Prainha, Oriximiná, and Santarém. Zone America/Santarem -3:38:48 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 - -4:00 - AMT 2008 Jun 24 00:00 + -4:00 - AMT 2008 Jun 24 0:00 -3:00 - BRT # # Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN), @@ -1041,7 +1040,7 @@ Zone America/Bahia -2:34:04 - LMT 1914 # Espírito Santo (ES), Rio de Janeiro (RJ), São Paulo (SP), Paraná (PR), # Santa Catarina (SC), Rio Grande do Sul (RS) Zone America/Sao_Paulo -3:06:28 - LMT 1914 - -3:00 Brazil BR%sT 1963 Oct 23 00:00 + -3:00 Brazil BR%sT 1963 Oct 23 0:00 -3:00 1:00 BRST 1964 -3:00 Brazil BR%sT # @@ -1082,19 +1081,73 @@ Zone America/Eirunepe -4:39:28 - LMT 1914 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT 1993 Sep 28 -5:00 Brazil AC%sT 1994 Sep 22 - -5:00 - ACT 2008 Jun 24 00:00 + -5:00 - ACT 2008 Jun 24 0:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT # # Acre (AC) Zone America/Rio_Branco -4:31:12 - LMT 1914 -5:00 Brazil AC%sT 1988 Sep 12 - -5:00 - ACT 2008 Jun 24 00:00 + -5:00 - ACT 2008 Jun 24 0:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT # Chile +# From Paul Eggert (2015-04-03): +# Shanks & Pottenger says America/Santiago introduced standard time in +# 1890 and rounds its UTC offset to 70W40; guess that in practice this +# was the same offset as in 1916-1919. It also says Pacific/Easter +# standardized on 109W22 in 1890; assume this didn't change the clocks. +# +# Dates for America/Santiago from 1910 to 2004 are primarily from +# the following source, cited by Oscar van Vlijmen (2006-10-08): +# [1] Chile Law +# http://www.webexhibits.org/daylightsaving/chile.html +# This contains a copy of a this official table: +# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30) +# http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm +# [1] needs several corrections, though. +# +# The first set of corrections is from: +# [2] History of the Official Time of Chile +# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See: +# http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html +# This is an English translation of: +# Historia de la hora oficial de Chile (retrieved 2012-10-24). See: +# http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm +# A fancier Spanish version (requiring mouse-clicking) is at: +# http://www.horaoficial.cl/historia_hora.html +# Conflicts between [1] and [2] were resolved as follows: +# +# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites +# Boletín No. 1, Aviso No. 1 (1910). Go with [2]. +# +# - [1] says SMT was -4:42:45, [2] says Chile's official time from +# 1916 to 1919 was -4:42:46.3, the meridian of Chile's National +# Astronomical Observatory (OAN), then located in what is now +# Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46. +# +# - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites +# Boletín No. 22, Aviso No. 129/1918 (1918-08-23). Go with [2]. +# +# - [1] does not give times for transitions; assume they occur +# at midnight mainland time, the current common practice. However, +# go with [2]'s specification of 23:00 for the 1947-05-21 transition. +# +# Another correction to [1] is from Jesper Nørgaard Welen, who +# wrote (2006-10-08), "I think that there are some obvious mistakes in +# the suggested link from Oscar van Vlijmen,... for instance entry 66 +# says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at +# 1990-09-15 (they should have been 1990-09-15 and 1990-09-16 +# respectively), but anyhow it clears up some doubts too." +# +# Data for Pacific/Easter from 1910 through 1967 come from Shanks & +# Pottenger. After that, for lack of better info assume +# Pacific/Easter is always two hours behind America/Santiago; +# this is known to work for DST transitions starting in 2008 and +# may well be true for earlier transitions. + # From Eduardo Krell (1995-10-19): # The law says to switch to DST at midnight [24:00] on the second SATURDAY # of October.... The law is the same for March and October. @@ -1107,78 +1160,35 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # Because of the same drought, the government decided to end DST later, # on April 3, (one-time change). -# From Oscar van Vlijmen (2006-10-08): -# http://www.horaoficial.cl/cambio.htm - -# From Jesper Nørgaard Welen (2006-10-08): -# I think that there are some obvious mistakes in the suggested link -# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 -# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 -# (they should have been 1990-09-15 and 1990-09-16 respectively), but -# anyhow it clears up some doubts too. - -# From Paul Eggert (2006-12-27): -# The following data for Chile and America/Santiago are from -# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by -# Jesper Nørgaard Welen. The data for Pacific/Easter are from Shanks -# & Pottenger, except with DST transitions after 1932 cloned from -# America/Santiago. The pre-1980 Pacific/Easter data are dubious, -# but we have no other source. - # From Germán Poo-Caamaño (2008-03-03): # Due to drought, Chile extends Daylight Time in three weeks. This # is one-time change (Saturday 3/29 at 24:00 for America/Santiago # and Saturday 3/29 at 22:00 for Pacific/Easter) # The Supreme Decree is located at # http://www.shoa.cl/servicios/supremo316.pdf -# and the instructions for 2008 are located in: -# http://www.horaoficial.cl/cambio.htm - +# # From José Miguel Garrido (2008-03-05): -# ... -# You could see the announces of the change on # http://www.shoa.cl/noticias/2008/04hora/hora.htm # From Angel Chiang (2010-03-04): # Subject: DST in Chile exceptionally extended to 3 April due to earthquake # http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 -# (in Spanish, last paragraph). # -# This is breaking news. There should be more information available later. - -# From Arthur Daivd Olson (2010-03-06): +# From Arthur David Olson (2010-03-06): # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. -# From Glenn Eychaner (2011-03-02): [geychaner@mac.com] -# It appears that the Chilean government has decided to postpone the -# change from summer time to winter time again, by three weeks to April -# 2nd: -# http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651 -# -# This is not yet reflected in the official "cambio de hora" site, but -# probably will be soon: -# http://www.horaoficial.cl/cambio.htm - -# From Arthur David Olson (2011-03-02): -# The emol.com article mentions a water shortage as the cause of the -# postponement, which may mean that it's not a permanent change. - # From Glenn Eychaner (2011-03-28): -# The article: # http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} -# # In English: # Chile's clocks will go back an hour this year on the 7th of May instead # of this Saturday. They will go forward again the 3rd Saturday in -# August, not in October as they have since 1968. This is a pilot plan -# which will be reevaluated in 2012. +# August, not in October as they have since 1968. # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): # As stated in the website of the Chilean Energy Ministry # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html # The Chilean Government has decided to postpone the entrance into winter time -# (to leave DST) from March 11 2012 to April 28th 2012. The decision has not -# been yet formalized but it will within the next days. +# (to leave DST) from March 11 2012 to April 28th 2012.... # Quote from the website communication: # # 6. For the year 2012, the dates of entry into winter time will be as follows: @@ -1203,17 +1213,31 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) # http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf -# NOTE: ChileAQ rules for Antarctic bases are stored separately in the -# 'antarctica' file. +# From Eduardo Romero Urra (2015-03-03): +# Today has been published officially that Chile will use the DST time +# permanently until March 25 of 2017 +# http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg +# +# From Paul Eggert (2015-03-03): +# For now, assume that the extension will persist indefinitely. + +# From Juan Correa (2016-03-18): +# The decree regarding DST has been published in today's Official Gazette: +# http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ +# http://www.leychile.cl/Navegar?idNorma=1088502 +# It does consider the second Saturday of May and August as the dates +# for the transition; and it lists DST dates until 2019, but I think +# this scheme will stick. +# +# From Paul Eggert (2016-03-18): +# For now, assume the pattern holds for the indefinite future. +# The decree says transitions occur at 24:00; in practice this appears +# to mean 24:00 mainland time, not 24:00 local time, so that Easter +# Island is always two hours behind the mainland. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Chile 1927 1932 - Sep 1 0:00 1:00 S +Rule Chile 1927 1931 - Sep 1 0:00 1:00 S Rule Chile 1928 1932 - Apr 1 0:00 0 - -Rule Chile 1942 only - Jun 1 4:00u 0 - -Rule Chile 1942 only - Aug 1 5:00u 1:00 S -Rule Chile 1946 only - Jul 15 4:00u 1:00 S -Rule Chile 1946 only - Sep 1 3:00u 0:00 - -Rule Chile 1947 only - Apr 1 4:00u 0 - Rule Chile 1968 only - Nov 3 4:00u 1:00 S Rule Chile 1969 only - Mar 30 3:00u 0 - Rule Chile 1969 only - Nov 23 4:00u 1:00 S @@ -1224,10 +1248,8 @@ Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - Rule Chile 1973 only - Sep 30 4:00u 1:00 S Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1987 only - Apr 12 3:00u 0 - -Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - -Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S -Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S -Rule Chile 1990 only - Mar 18 3:00u 0 - +Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - +Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1990 only - Sep 16 4:00u 1:00 S Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S @@ -1244,28 +1266,54 @@ Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - Rule Chile 2011 only - May Sun>=2 3:00u 0 - Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S -Rule Chile 2012 max - Apr Sun>=23 3:00u 0 - -Rule Chile 2012 max - Sep Sun>=2 4:00u 1:00 S +Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - +Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S +Rule Chile 2016 max - May Sun>=9 3:00u 0 - +Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Santiago -4:42:46 - LMT 1890 - -4:42:46 - SMT 1910 # Santiago Mean Time + -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time -5:00 - CLT 1916 Jul 1 # Chile Time - -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time - -4:00 - CLT 1919 Jul 1 # Chile Time - -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time - -5:00 Chile CL%sT 1947 May 22 # Chile Time + -4:42:46 - SMT 1918 Sep 10 + -4:00 - CLT 1919 Jul 1 + -4:42:46 - SMT 1927 Sep 1 + -5:00 Chile CL%sT 1932 Sep 1 + -4:00 - CLT 1942 Jun 1 + -5:00 - CLT 1942 Aug 1 + -4:00 - CLT 1946 Jul 15 + -4:00 1:00 CLST 1946 Sep 1 # central Chile + -4:00 - CLT 1947 Apr 1 + -5:00 - CLT 1947 May 21 23:00 -4:00 Chile CL%sT -Zone Pacific/Easter -7:17:44 - LMT 1890 +Zone Pacific/Easter -7:17:28 - LMT 1890 -7:17:28 - EMT 1932 Sep # Easter Mean Time - -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time + -7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time -6:00 Chile EAS%sT # # Salas y Gómez Island is uninhabited. # Other Chilean locations, including Juan Fernández Is, Desventuradas Is, # and Antarctic bases, are like America/Santiago. +# Antarctic base using South American rules +# (See the file 'antarctica' for more.) +# +# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) +# +# From Ethan Dicks (1996-10-06): +# It keeps the same time as Punta Arenas, Chile, because, just like us +# and the South Pole, that's the other end of their supply line.... +# I verified with someone who was there that since 1980, +# Palmer has followed Chile. Prior to that, before the Falklands War, +# Palmer used to be supplied from Argentina. +# +# Zone NAME GMTOFF RULES FORMAT [UNTIL] +Zone Antarctica/Palmer 0 - -00 1965 + -4:00 Arg AR%sT 1969 Oct 5 + -3:00 Arg AR%sT 1982 May + -4:00 Chile CL%sT + # Colombia # Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes, @@ -1300,7 +1348,7 @@ Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 # though, as far as we know. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad +Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad -4:30 - ANT 1965 # Netherlands Antilles Time -4:00 - AST @@ -1325,10 +1373,10 @@ Link America/Curacao America/Kralendijk # Caribbean Netherlands # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guayaquil -5:19:20 - LMT 1890 -5:14:00 - QMT 1931 # Quito Mean Time - -5:00 - ECT # Ecuador Time + -5:00 - ECT # Ecuador Time Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno -5:00 - ECT 1986 - -6:00 - GALT # Galápagos Time + -6:00 - GALT # Galápagos Time # Falklands @@ -1427,10 +1475,10 @@ Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:51:24 - LMT 1890 - -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time - -4:00 Falk FK%sT 1983 May # Falkland Is Time + -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time + -4:00 Falk FK%sT 1983 May # Falkland Is Time -3:00 Falk FK%sT 1985 Sep 15 - -4:00 Falk FK%sT 2010 Sep 5 02:00 + -4:00 Falk FK%sT 2010 Sep 5 2:00 -3:00 - FKST # French Guiana @@ -1441,7 +1489,7 @@ Zone America/Cayenne -3:29:20 - LMT 1911 Jul # Guyana # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown +Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown -3:45 - GBGT 1966 May 26 # Br Guiana Time -3:45 - GYT 1975 Jul 31 # Guyana Time -3:00 - GYT 1991 @@ -1478,8 +1526,8 @@ Rule Para 1996 only - Mar 1 0:00 0 - # (10-01). # # Translated by Gwillim Law (2001-02-27) from -# Noticias, a daily paper in Asunción, Paraguay (2000-10-01) -# <http://www.diarionoticias.com.py/011000/nacional/naciona1.htm>: +# Noticias, a daily paper in Asunción, Paraguay (2000-10-01): +# http://www.diarionoticias.com.py/011000/nacional/naciona1.htm # Starting at 0:00 today, the clock will be set forward 60 minutes, in # fulfillment of Decree No. 7,273 of the Executive Power.... The time change # system has been operating for several years. Formerly there was a separate @@ -1494,7 +1542,7 @@ Rule Para 1997 only - Feb lastSun 0:00 0 - # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - # From Rives McDow (2002-02-28): -# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the +# A decree was issued in Paraguay (No. 16350) on 2002-02-26 that changed the # dst method to be from the first Sunday in September to the first Sunday in # April. Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - @@ -1506,7 +1554,7 @@ Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S # From Steffen Thorsen (2005-01-05): # Decree 1,867 (2004-03-05) # From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) -# <http://www.presidencia.gov.py/decretos/D1867.pdf> +# http://www.presidencia.gov.py/decretos/D1867.pdf Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # From Carlos Raúl Perasso (2010-02-18): @@ -1538,7 +1586,7 @@ Rule Para 2013 max - Mar Sun>=22 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time - -4:00 - PYT 1972 Oct # Paraguay Time + -4:00 - PYT 1972 Oct # Paraguay Time -3:00 - PYT 1974 Apr -4:00 Para PY%sT @@ -1571,7 +1619,7 @@ Zone America/Lima -5:08:12 - LMT 1890 # South Georgia # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken +Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken -2:00 - GST # South Georgia Time # South Sandwich Is @@ -1581,9 +1629,9 @@ Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Paramaribo -3:40:40 - LMT 1911 -3:40:52 - PMT 1935 # Paramaribo Mean Time - -3:40:36 - PMT 1945 Oct # The capital moved? + -3:40:36 - PMT 1945 Oct # The capital moved? -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time - -3:30 - SRT 1984 Oct # Suriname Time + -3:30 - SRT 1984 Oct # Suriname Time -3:00 - SRT # Trinidad and Tobago @@ -1593,6 +1641,7 @@ Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 # These all agree with Trinidad and Tobago since 1970. Link America/Port_of_Spain America/Anguilla +Link America/Port_of_Spain America/Antigua Link America/Port_of_Spain America/Dominica Link America/Port_of_Spain America/Grenada Link America/Port_of_Spain America/Guadeloupe @@ -1657,7 +1706,7 @@ Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S Rule Uruguay 1992 only - Oct 18 0:00 1:00 S Rule Uruguay 1993 only - Feb 28 0:00 0 - # From Eduardo Cota (2004-09-20): -# The uruguayan government has decreed a change in the local time.... +# The Uruguayan government has decreed a change in the local time.... # http://www.presidencia.gub.uy/decretos/2004091502.htm Rule Uruguay 2004 only - Sep 19 0:00 1:00 S # From Steffen Thorsen (2005-03-11): @@ -1673,16 +1722,31 @@ Rule Uruguay 2005 only - Oct 9 2:00 1:00 S Rule Uruguay 2006 only - Mar 12 2:00 0 - # From Jesper Nørgaard Welen (2006-09-06): # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF -Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S -Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - +# +# From Steffen Thorsen (2015-06-30): +# ... it looks like they will not be using DST the coming summer: +# http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 +# http://www.republica.com.uy/este-ano-no-se-modificara-el-huso-horario-en-uruguay/523760/ +# From Paul Eggert (2015-06-30): +# Apparently restaurateurs complained that DST caused people to go to the beach +# instead of out to dinner. +# From Pablo Camargo (2015-07-13): +# http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf +# [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04] +Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S +Rule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 - -3:44:44 - MMT 1920 May 1 # Montevideo MT - -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time + -3:44:44 - MMT 1920 May 1 # Montevideo MT + -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time -3:00 Uruguay UY%sT # Venezuela # +# From Paul Eggert (2015-07-28): +# For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533 +# http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf +# # From John Stainforth (2007-11-28): # ... the change for Venezuela originally expected for 2007-12-31 has # been brought forward to 2007-12-09. The official announcement was @@ -1691,9 +1755,25 @@ Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 # resolution publication) # http://www.globovision.com/news.php?nid=72208 +# From Alexander Krivenyshev (2016-04-15): +# https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino +# +# From Paul Eggert (2016-04-15): +# Clocks advance 30 minutes on 2016-05-01 at 02:30.... +# "'Venezuela's new time-zone: hours without light, hours without water, +# hours of presidential broadcasts, hours of lines,' quipped comedian +# Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps +# half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 +# http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE +# +# From Matt Johnson (2016-04-20): +# ... published in the official Gazette [2016-04-18], here: +# http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Caracas -4:27:44 - LMT 1890 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? - -4:30 - VET 1965 # Venezuela Time - -4:00 - VET 2007 Dec 9 03:00 - -4:30 - VET + -4:30 - VET 1965 Jan 1 0:00 # Venezuela T. + -4:00 - VET 2007 Dec 9 3:00 + -4:30 - VET 2016 May 1 2:30 + -4:00 - VET diff --git a/contrib/tzdata/version b/contrib/tzdata/version new file mode 100644 index 0000000..bc96124 --- /dev/null +++ b/contrib/tzdata/version @@ -0,0 +1 @@ +2016i diff --git a/contrib/tzdata/zone.tab b/contrib/tzdata/zone.tab index 92b9c98..f4969d2 100644 --- a/contrib/tzdata/zone.tab +++ b/contrib/tzdata/zone.tab @@ -17,8 +17,8 @@ # that of zone1970.tab. # # This table is intended as an aid for users, to help them select time -# zone data appropriate for their practical needs. It is not intended -# to take or endorse any position on legal or territorial claims. +# zone data entries appropriate for their practical needs. It is not +# intended to take or endorse any position on legal or territorial claims. # #country- #code coordinates TZ comments @@ -30,22 +30,22 @@ AI +1812-06304 America/Anguilla AL +4120+01950 Europe/Tirane AM +4011+04430 Asia/Yerevan AO -0848+01314 Africa/Luanda -AQ -7750+16636 Antarctica/McMurdo McMurdo, South Pole, Scott (New Zealand time) -AQ -6734-06808 Antarctica/Rothera Rothera Station, Adelaide Island -AQ -6448-06406 Antarctica/Palmer Palmer Station, Anvers Island -AQ -6736+06253 Antarctica/Mawson Mawson Station, Holme Bay -AQ -6835+07758 Antarctica/Davis Davis Station, Vestfold Hills -AQ -6617+11031 Antarctica/Casey Casey Station, Bailey Peninsula -AQ -7824+10654 Antarctica/Vostok Vostok Station, Lake Vostok -AQ -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville Station, Terre Adelie -AQ -690022+0393524 Antarctica/Syowa Syowa Station, E Ongul I -AQ -720041+0023206 Antarctica/Troll Troll Station, Queen Maud Land +AQ -7750+16636 Antarctica/McMurdo New Zealand time - McMurdo, South Pole +AQ -6617+11031 Antarctica/Casey Casey +AQ -6835+07758 Antarctica/Davis Davis +AQ -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville +AQ -6736+06253 Antarctica/Mawson Mawson +AQ -6448-06406 Antarctica/Palmer Palmer +AQ -6734-06808 Antarctica/Rothera Rothera +AQ -690022+0393524 Antarctica/Syowa Syowa +AQ -720041+0023206 Antarctica/Troll Troll +AQ -7824+10654 Antarctica/Vostok Vostok AR -3436-05827 America/Argentina/Buenos_Aires Buenos Aires (BA, CF) -AR -3124-06411 America/Argentina/Cordoba most locations (CB, CC, CN, ER, FM, MN, SE, SF) -AR -2447-06525 America/Argentina/Salta (SA, LP, NQ, RN) +AR -3124-06411 America/Argentina/Cordoba Argentina (most areas: CB, CC, CN, ER, FM, MN, SE, SF) +AR -2447-06525 America/Argentina/Salta Salta (SA, LP, NQ, RN) AR -2411-06518 America/Argentina/Jujuy Jujuy (JY) AR -2649-06513 America/Argentina/Tucuman Tucuman (TM) -AR -2828-06547 America/Argentina/Catamarca Catamarca (CT), Chubut (CH) +AR -2828-06547 America/Argentina/Catamarca Catamarca (CT); Chubut (CH) AR -2926-06651 America/Argentina/La_Rioja La Rioja (LR) AR -3132-06831 America/Argentina/San_Juan San Juan (SJ) AR -3253-06849 America/Argentina/Mendoza Mendoza (MZ) @@ -56,17 +56,17 @@ AS -1416-17042 Pacific/Pago_Pago AT +4813+01620 Europe/Vienna AU -3133+15905 Australia/Lord_Howe Lord Howe Island AU -5430+15857 Antarctica/Macquarie Macquarie Island -AU -4253+14719 Australia/Hobart Tasmania - most locations -AU -3956+14352 Australia/Currie Tasmania - King Island +AU -4253+14719 Australia/Hobart Tasmania (most areas) +AU -3956+14352 Australia/Currie Tasmania (King Island) AU -3749+14458 Australia/Melbourne Victoria -AU -3352+15113 Australia/Sydney New South Wales - most locations -AU -3157+14127 Australia/Broken_Hill New South Wales - Yancowinna -AU -2728+15302 Australia/Brisbane Queensland - most locations -AU -2016+14900 Australia/Lindeman Queensland - Holiday Islands +AU -3352+15113 Australia/Sydney New South Wales (most areas) +AU -3157+14127 Australia/Broken_Hill New South Wales (Yancowinna) +AU -2728+15302 Australia/Brisbane Queensland (most areas) +AU -2016+14900 Australia/Lindeman Queensland (Whitsunday Islands) AU -3455+13835 Australia/Adelaide South Australia AU -1228+13050 Australia/Darwin Northern Territory -AU -3157+11551 Australia/Perth Western Australia - most locations -AU -3143+12852 Australia/Eucla Western Australia - Eucla area +AU -3157+11551 Australia/Perth Western Australia (most areas) +AU -3143+12852 Australia/Eucla Western Australia (Eucla) AW +1230-06958 America/Aruba AX +6006+01957 Europe/Mariehamn AZ +4023+04951 Asia/Baku @@ -85,62 +85,63 @@ BN +0456+11455 Asia/Brunei BO -1630-06809 America/La_Paz BQ +120903-0681636 America/Kralendijk BR -0351-03225 America/Noronha Atlantic islands -BR -0127-04829 America/Belem Amapa, E Para -BR -0343-03830 America/Fortaleza NE Brazil (MA, PI, CE, RN, PB) +BR -0127-04829 America/Belem Para (east); Amapa +BR -0343-03830 America/Fortaleza Brazil (northeast: MA, PI, CE, RN, PB) BR -0803-03454 America/Recife Pernambuco BR -0712-04812 America/Araguaina Tocantins BR -0940-03543 America/Maceio Alagoas, Sergipe BR -1259-03831 America/Bahia Bahia -BR -2332-04637 America/Sao_Paulo S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS) +BR -2332-04637 America/Sao_Paulo Brazil (southeast: GO, DF, MG, ES, RJ, SP, PR, SC, RS) BR -2027-05437 America/Campo_Grande Mato Grosso do Sul BR -1535-05605 America/Cuiaba Mato Grosso -BR -0226-05452 America/Santarem W Para +BR -0226-05452 America/Santarem Para (west) BR -0846-06354 America/Porto_Velho Rondonia BR +0249-06040 America/Boa_Vista Roraima -BR -0308-06001 America/Manaus E Amazonas -BR -0640-06952 America/Eirunepe W Amazonas +BR -0308-06001 America/Manaus Amazonas (east) +BR -0640-06952 America/Eirunepe Amazonas (west) BR -0958-06748 America/Rio_Branco Acre BS +2505-07721 America/Nassau BT +2728+08939 Asia/Thimphu BW -2439+02555 Africa/Gaborone BY +5354+02734 Europe/Minsk BZ +1730-08812 America/Belize -CA +4734-05243 America/St_Johns Newfoundland Time, including SE Labrador -CA +4439-06336 America/Halifax Atlantic Time - Nova Scotia (most places), PEI -CA +4612-05957 America/Glace_Bay Atlantic Time - Nova Scotia - places that did not observe DST 1966-1971 -CA +4606-06447 America/Moncton Atlantic Time - New Brunswick -CA +5320-06025 America/Goose_Bay Atlantic Time - Labrador - most locations -CA +5125-05707 America/Blanc-Sablon Atlantic Standard Time - Quebec - Lower North Shore -CA +4339-07923 America/Toronto Eastern Time - Ontario & Quebec - most locations -CA +4901-08816 America/Nipigon Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973 -CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario -CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut - most locations -CA +6608-06544 America/Pangnirtung Eastern Time - Pangnirtung, Nunavut -CA +744144-0944945 America/Resolute Central Time - Resolute, Nunavut -CA +484531-0913718 America/Atikokan Eastern Standard Time - Atikokan, Ontario and Southampton I, Nunavut -CA +624900-0920459 America/Rankin_Inlet Central Time - central Nunavut -CA +4953-09709 America/Winnipeg Central Time - Manitoba & west Ontario -CA +4843-09434 America/Rainy_River Central Time - Rainy River & Fort Frances, Ontario -CA +5024-10439 America/Regina Central Standard Time - Saskatchewan - most locations -CA +5017-10750 America/Swift_Current Central Standard Time - Saskatchewan - midwest -CA +5333-11328 America/Edmonton Mountain Time - Alberta, east British Columbia & west Saskatchewan -CA +690650-1050310 America/Cambridge_Bay Mountain Time - west Nunavut -CA +6227-11421 America/Yellowknife Mountain Time - central Northwest Territories -CA +682059-1334300 America/Inuvik Mountain Time - west Northwest Territories -CA +4906-11631 America/Creston Mountain Standard Time - Creston, British Columbia -CA +5946-12014 America/Dawson_Creek Mountain Standard Time - Dawson Creek & Fort Saint John, British Columbia -CA +4916-12307 America/Vancouver Pacific Time - west British Columbia -CA +6043-13503 America/Whitehorse Pacific Time - south Yukon -CA +6404-13925 America/Dawson Pacific Time - north Yukon +CA +4734-05243 America/St_Johns Newfoundland; Labrador (southeast) +CA +4439-06336 America/Halifax Atlantic - NS (most areas); PE +CA +4612-05957 America/Glace_Bay Atlantic - NS (Cape Breton) +CA +4606-06447 America/Moncton Atlantic - New Brunswick +CA +5320-06025 America/Goose_Bay Atlantic - Labrador (most areas) +CA +5125-05707 America/Blanc-Sablon AST - QC (Lower North Shore) +CA +4339-07923 America/Toronto Eastern - ON, QC (most areas) +CA +4901-08816 America/Nipigon Eastern - ON, QC (no DST 1967-73) +CA +4823-08915 America/Thunder_Bay Eastern - ON (Thunder Bay) +CA +6344-06828 America/Iqaluit Eastern - NU (most east areas) +CA +6608-06544 America/Pangnirtung Eastern - NU (Pangnirtung) +CA +484531-0913718 America/Atikokan EST - ON (Atikokan); NU (Coral H) +CA +4953-09709 America/Winnipeg Central - ON (west); Manitoba +CA +4843-09434 America/Rainy_River Central - ON (Rainy R, Ft Frances) +CA +744144-0944945 America/Resolute Central - NU (Resolute) +CA +624900-0920459 America/Rankin_Inlet Central - NU (central) +CA +5024-10439 America/Regina CST - SK (most areas) +CA +5017-10750 America/Swift_Current CST - SK (midwest) +CA +5333-11328 America/Edmonton Mountain - AB; BC (E); SK (W) +CA +690650-1050310 America/Cambridge_Bay Mountain - NU (west) +CA +6227-11421 America/Yellowknife Mountain - NT (central) +CA +682059-1334300 America/Inuvik Mountain - NT (west) +CA +4906-11631 America/Creston MST - BC (Creston) +CA +5946-12014 America/Dawson_Creek MST - BC (Dawson Cr, Ft St John) +CA +5848-12242 America/Fort_Nelson MST - BC (Ft Nelson) +CA +4916-12307 America/Vancouver Pacific - BC (most areas) +CA +6043-13503 America/Whitehorse Pacific - Yukon (south) +CA +6404-13925 America/Dawson Pacific - Yukon (north) CC -1210+09655 Indian/Cocos -CD -0418+01518 Africa/Kinshasa west Dem. Rep. of Congo -CD -1140+02728 Africa/Lubumbashi east Dem. Rep. of Congo +CD -0418+01518 Africa/Kinshasa Dem. Rep. of Congo (west) +CD -1140+02728 Africa/Lubumbashi Dem. Rep. of Congo (east) CF +0422+01835 Africa/Bangui CG -0416+01517 Africa/Brazzaville CH +4723+00832 Europe/Zurich CI +0519-00402 Africa/Abidjan CK -2114-15946 Pacific/Rarotonga -CL -3327-07040 America/Santiago most locations +CL -3327-07040 America/Santiago Chile (most areas) CL -2709-10926 Pacific/Easter Easter Island CM +0403+00942 Africa/Douala CN +3114+12128 Asia/Shanghai Beijing Time @@ -151,30 +152,31 @@ CU +2308-08222 America/Havana CV +1455-02331 Atlantic/Cape_Verde CW +1211-06900 America/Curacao CX -1025+10543 Indian/Christmas -CY +3510+03322 Asia/Nicosia +CY +3510+03322 Asia/Nicosia Cyprus (most areas) +CY +3507+03357 Asia/Famagusta Northern Cyprus CZ +5005+01426 Europe/Prague -DE +5230+01322 Europe/Berlin most locations +DE +5230+01322 Europe/Berlin Germany (most areas) DE +4742+00841 Europe/Busingen Busingen DJ +1136+04309 Africa/Djibouti DK +5540+01235 Europe/Copenhagen DM +1518-06124 America/Dominica DO +1828-06954 America/Santo_Domingo DZ +3647+00303 Africa/Algiers -EC -0210-07950 America/Guayaquil mainland +EC -0210-07950 America/Guayaquil Ecuador (mainland) EC -0054-08936 Pacific/Galapagos Galapagos Islands EE +5925+02445 Europe/Tallinn EG +3003+03115 Africa/Cairo EH +2709-01312 Africa/El_Aaiun ER +1520+03853 Africa/Asmara -ES +4024-00341 Europe/Madrid mainland -ES +3553-00519 Africa/Ceuta Ceuta & Melilla +ES +4024-00341 Europe/Madrid Spain (mainland) +ES +3553-00519 Africa/Ceuta Ceuta, Melilla ES +2806-01524 Atlantic/Canary Canary Islands ET +0902+03842 Africa/Addis_Ababa FI +6010+02458 Europe/Helsinki FJ -1808+17825 Pacific/Fiji FK -5142-05751 Atlantic/Stanley -FM +0725+15147 Pacific/Chuuk Chuuk (Truk) and Yap -FM +0658+15813 Pacific/Pohnpei Pohnpei (Ponape) +FM +0725+15147 Pacific/Chuuk Chuuk/Truk, Yap +FM +0658+15813 Pacific/Pohnpei Pohnpei/Ponape FM +0519+16259 Pacific/Kosrae Kosrae FO +6201-00646 Atlantic/Faroe FR +4852+00220 Europe/Paris @@ -186,10 +188,10 @@ GF +0456-05220 America/Cayenne GG +4927-00232 Europe/Guernsey GH +0533-00013 Africa/Accra GI +3608-00521 Europe/Gibraltar -GL +6411-05144 America/Godthab most locations -GL +7646-01840 America/Danmarkshavn east coast, north of Scoresbysund -GL +7029-02158 America/Scoresbysund Scoresbysund / Ittoqqortoormiit -GL +7634-06847 America/Thule Thule / Pituffik +GL +6411-05144 America/Godthab Greenland (most areas) +GL +7646-01840 America/Danmarkshavn National Park (east coast) +GL +7029-02158 America/Scoresbysund Scoresbysund/Ittoqqortoormiit +GL +7634-06847 America/Thule Thule/Pituffik GM +1328-01639 Africa/Banjul GN +0931-01343 Africa/Conakry GP +1614-06132 America/Guadeloupe @@ -205,10 +207,10 @@ HN +1406-08713 America/Tegucigalpa HR +4548+01558 Europe/Zagreb HT +1832-07220 America/Port-au-Prince HU +4730+01905 Europe/Budapest -ID -0610+10648 Asia/Jakarta Java & Sumatra -ID -0002+10920 Asia/Pontianak west & central Borneo -ID -0507+11924 Asia/Makassar east & south Borneo, Sulawesi (Celebes), Bali, Nusa Tengarra, west Timor -ID -0232+14042 Asia/Jayapura west New Guinea (Irian Jaya) & Malukus (Moluccas) +ID -0610+10648 Asia/Jakarta Java, Sumatra +ID -0002+10920 Asia/Pontianak Borneo (west, central) +ID -0507+11924 Asia/Makassar Borneo (east, south); Sulawesi/Celebes, Bali, Nusa Tengarra; Timor (west) +ID -0232+14042 Asia/Jayapura New Guinea (West Papua / Irian Jaya); Malukus/Moluccas IE +5320-00615 Europe/Dublin IL +314650+0351326 Asia/Jerusalem IM +5409-00428 Europe/Isle_of_Man @@ -234,10 +236,10 @@ KP +3901+12545 Asia/Pyongyang KR +3733+12658 Asia/Seoul KW +2920+04759 Asia/Kuwait KY +1918-08123 America/Cayman -KZ +4315+07657 Asia/Almaty most locations -KZ +4448+06528 Asia/Qyzylorda Qyzylorda (Kyzylorda, Kzyl-Orda) -KZ +5017+05710 Asia/Aqtobe Aqtobe (Aktobe) -KZ +4431+05016 Asia/Aqtau Atyrau (Atirau, Gur'yev), Mangghystau (Mankistau) +KZ +4315+07657 Asia/Almaty Kazakhstan (most areas) +KZ +4448+06528 Asia/Qyzylorda Qyzylorda/Kyzylorda/Kzyl-Orda +KZ +5017+05710 Asia/Aqtobe Aqtobe/Aktobe +KZ +4431+05016 Asia/Aqtau Atyrau/Atirau/Gur'yev, Mangghystau/Mankistau KZ +5113+05121 Asia/Oral West Kazakhstan LA +1758+10236 Asia/Vientiane LB +3353+03530 Asia/Beirut @@ -256,12 +258,12 @@ MD +4700+02850 Europe/Chisinau ME +4226+01916 Europe/Podgorica MF +1804-06305 America/Marigot MG -1855+04731 Indian/Antananarivo -MH +0709+17112 Pacific/Majuro most locations +MH +0709+17112 Pacific/Majuro Marshall Islands (most areas) MH +0905+16720 Pacific/Kwajalein Kwajalein MK +4159+02126 Europe/Skopje ML +1239-00800 Africa/Bamako -MM +1647+09610 Asia/Rangoon -MN +4755+10653 Asia/Ulaanbaatar most locations +MM +1647+09610 Asia/Yangon +MN +4755+10653 Asia/Ulaanbaatar Mongolia (most areas) MN +4801+09139 Asia/Hovd Bayan-Olgiy, Govi-Altai, Hovd, Uvs, Zavkhan MN +4804+11430 Asia/Choibalsan Dornod, Sukhbaatar MO +2214+11335 Asia/Macau @@ -273,20 +275,19 @@ MT +3554+01431 Europe/Malta MU -2010+05730 Indian/Mauritius MV +0410+07330 Indian/Maldives MW -1547+03500 Africa/Blantyre -MX +1924-09909 America/Mexico_City Central Time - most locations -MX +2105-08646 America/Cancun Central Time - Quintana Roo +MX +1924-09909 America/Mexico_City Central Time +MX +2105-08646 America/Cancun Eastern Standard Time - Quintana Roo MX +2058-08937 America/Merida Central Time - Campeche, Yucatan -MX +2540-10019 America/Monterrey Mexican Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas away from US border -MX +2550-09730 America/Matamoros US Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas near US border -MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa -MX +2838-10605 America/Chihuahua Mexican Mountain Time - Chihuahua away from US border -MX +2934-10425 America/Ojinaga US Mountain Time - Chihuahua near US border +MX +2540-10019 America/Monterrey Central Time - Durango; Coahuila, Nuevo Leon, Tamaulipas (most areas) +MX +2550-09730 America/Matamoros Central Time US - Coahuila, Nuevo Leon, Tamaulipas (US border) +MX +2313-10625 America/Mazatlan Mountain Time - Baja California Sur, Nayarit, Sinaloa +MX +2838-10605 America/Chihuahua Mountain Time - Chihuahua (most areas) +MX +2934-10425 America/Ojinaga Mountain Time US - Chihuahua (US border) MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora -MX +3232-11701 America/Tijuana US Pacific Time - Baja California near US border -MX +3018-11452 America/Santa_Isabel Mexican Pacific Time - Baja California away from US border -MX +2048-10515 America/Bahia_Banderas Mexican Central Time - Bahia de Banderas -MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia -MY +0133+11020 Asia/Kuching Sabah & Sarawak +MX +3232-11701 America/Tijuana Pacific Time US - Baja California +MX +2048-10515 America/Bahia_Banderas Central Time - Bahia de Banderas +MY +0310+10142 Asia/Kuala_Lumpur Malaysia (peninsula) +MY +0133+11020 Asia/Kuching Sabah, Sarawak MZ -2558+03235 Africa/Maputo NA -2234+01706 Africa/Windhoek NC -2216+16627 Pacific/Noumea @@ -299,7 +300,7 @@ NO +5955+01045 Europe/Oslo NP +2743+08519 Asia/Kathmandu NR -0031+16655 Pacific/Nauru NU -1901-16955 Pacific/Niue -NZ -3652+17446 Pacific/Auckland most locations +NZ -3652+17446 Pacific/Auckland New Zealand (most areas) NZ -4357-17633 Pacific/Chatham Chatham Islands OM +2336+05835 Asia/Muscat PA +0858-07932 America/Panama @@ -307,7 +308,8 @@ PE -1203-07703 America/Lima PF -1732-14934 Pacific/Tahiti Society Islands PF -0900-13930 Pacific/Marquesas Marquesas Islands PF -2308-13457 Pacific/Gambier Gambier Islands -PG -0930+14710 Pacific/Port_Moresby +PG -0930+14710 Pacific/Port_Moresby Papua New Guinea (most areas) +PG -0613+15534 Pacific/Bougainville Bougainville PH +1435+12100 Asia/Manila PK +2452+06703 Asia/Karachi PL +5215+02100 Europe/Warsaw @@ -316,7 +318,7 @@ PN -2504-13005 Pacific/Pitcairn PR +182806-0660622 America/Puerto_Rico PS +3130+03428 Asia/Gaza Gaza Strip PS +313200+0350542 Asia/Hebron West Bank -PT +3843-00908 Europe/Lisbon mainland +PT +3843-00908 Europe/Lisbon Portugal (mainland) PT +3238-01654 Atlantic/Madeira Madeira Islands PT +3744-02540 Atlantic/Azores Azores PW +0720+13429 Pacific/Palau @@ -325,27 +327,32 @@ QA +2517+05132 Asia/Qatar RE -2052+05528 Indian/Reunion RO +4426+02606 Europe/Bucharest RS +4450+02030 Europe/Belgrade -RU +5443+02030 Europe/Kaliningrad Moscow-01 - Kaliningrad -RU +554521+0373704 Europe/Moscow Moscow+00 - west Russia -RU +4457+03406 Europe/Simferopol Moscow+00 - Crimea -RU +4844+04425 Europe/Volgograd Moscow+00 - Caspian Sea -RU +5312+05009 Europe/Samara Moscow+00 (Moscow+01 after 2014-10-26) - Samara, Udmurtia -RU +5651+06036 Asia/Yekaterinburg Moscow+02 - Urals -RU +5500+07324 Asia/Omsk Moscow+03 - west Siberia -RU +5502+08255 Asia/Novosibirsk Moscow+03 - Novosibirsk -RU +5345+08707 Asia/Novokuznetsk Moscow+03 (Moscow+04 after 2014-10-26) - Kemerovo -RU +5601+09250 Asia/Krasnoyarsk Moscow+04 - Yenisei River -RU +5216+10420 Asia/Irkutsk Moscow+05 - Lake Baikal -RU +5203+11328 Asia/Chita Moscow+06 (Moscow+05 after 2014-10-26) - Zabaykalsky -RU +6200+12940 Asia/Yakutsk Moscow+06 - Lena River -RU +623923+1353314 Asia/Khandyga Moscow+06 - Tomponsky, Ust-Maysky -RU +4310+13156 Asia/Vladivostok Moscow+07 - Amur River -RU +4658+14242 Asia/Sakhalin Moscow+07 - Sakhalin Island -RU +643337+1431336 Asia/Ust-Nera Moscow+07 - Oymyakonsky -RU +5934+15048 Asia/Magadan Moscow+08 (Moscow+07 after 2014-10-26) - Magadan -RU +6728+15343 Asia/Srednekolymsk Moscow+08 - E Sakha, N Kuril Is -RU +5301+15839 Asia/Kamchatka Moscow+08 (Moscow+09 after 2014-10-26) - Kamchatka -RU +6445+17729 Asia/Anadyr Moscow+08 (Moscow+09 after 2014-10-26) - Bering Sea +RU +5443+02030 Europe/Kaliningrad MSK-01 - Kaliningrad +RU +554521+0373704 Europe/Moscow MSK+00 - Moscow area +RU +4457+03406 Europe/Simferopol MSK+00 - Crimea +RU +4844+04425 Europe/Volgograd MSK+00 - Volgograd, Saratov +RU +5836+04939 Europe/Kirov MSK+00 - Kirov +RU +4621+04803 Europe/Astrakhan MSK+01 - Astrakhan +RU +5312+05009 Europe/Samara MSK+01 - Samara, Udmurtia +RU +5420+04824 Europe/Ulyanovsk MSK+01 - Ulyanovsk +RU +5651+06036 Asia/Yekaterinburg MSK+02 - Urals +RU +5500+07324 Asia/Omsk MSK+03 - Omsk +RU +5502+08255 Asia/Novosibirsk MSK+03 - Novosibirsk +RU +5322+08345 Asia/Barnaul MSK+04 - Altai +RU +5630+08458 Asia/Tomsk MSK+04 - Tomsk +RU +5345+08707 Asia/Novokuznetsk MSK+04 - Kemerovo +RU +5601+09250 Asia/Krasnoyarsk MSK+04 - Krasnoyarsk area +RU +5216+10420 Asia/Irkutsk MSK+05 - Irkutsk, Buryatia +RU +5203+11328 Asia/Chita MSK+06 - Zabaykalsky +RU +6200+12940 Asia/Yakutsk MSK+06 - Lena River +RU +623923+1353314 Asia/Khandyga MSK+06 - Tomponsky, Ust-Maysky +RU +4310+13156 Asia/Vladivostok MSK+07 - Amur River +RU +643337+1431336 Asia/Ust-Nera MSK+07 - Oymyakonsky +RU +5934+15048 Asia/Magadan MSK+08 - Magadan +RU +4658+14242 Asia/Sakhalin MSK+08 - Sakhalin Island +RU +6728+15343 Asia/Srednekolymsk MSK+08 - Sakha (E); North Kuril Is +RU +5301+15839 Asia/Kamchatka MSK+09 - Kamchatka +RU +6445+17729 Asia/Anadyr MSK+09 - Bering Sea RW -0157+03004 Africa/Kigali SA +2438+04643 Asia/Riyadh SB -0932+16012 Pacific/Guadalcanal @@ -384,45 +391,45 @@ TT +1039-06131 America/Port_of_Spain TV -0831+17913 Pacific/Funafuti TW +2503+12130 Asia/Taipei TZ -0648+03917 Africa/Dar_es_Salaam -UA +5026+03031 Europe/Kiev most locations +UA +5026+03031 Europe/Kiev Ukraine (most areas) UA +4837+02218 Europe/Uzhgorod Ruthenia -UA +4750+03510 Europe/Zaporozhye Zaporozh'ye, E Lugansk / Zaporizhia, E Luhansk +UA +4750+03510 Europe/Zaporozhye Zaporozh'ye/Zaporizhia; Lugansk/Luhansk (east) UG +0019+03225 Africa/Kampala UM +1645-16931 Pacific/Johnston Johnston Atoll UM +2813-17722 Pacific/Midway Midway Islands UM +1917+16637 Pacific/Wake Wake Island -US +404251-0740023 America/New_York Eastern Time -US +421953-0830245 America/Detroit Eastern Time - Michigan - most locations -US +381515-0854534 America/Kentucky/Louisville Eastern Time - Kentucky - Louisville area -US +364947-0845057 America/Kentucky/Monticello Eastern Time - Kentucky - Wayne County -US +394606-0860929 America/Indiana/Indianapolis Eastern Time - Indiana - most locations -US +384038-0873143 America/Indiana/Vincennes Eastern Time - Indiana - Daviess, Dubois, Knox & Martin Counties -US +410305-0863611 America/Indiana/Winamac Eastern Time - Indiana - Pulaski County -US +382232-0862041 America/Indiana/Marengo Eastern Time - Indiana - Crawford County -US +382931-0871643 America/Indiana/Petersburg Eastern Time - Indiana - Pike County -US +384452-0850402 America/Indiana/Vevay Eastern Time - Indiana - Switzerland County -US +415100-0873900 America/Chicago Central Time -US +375711-0864541 America/Indiana/Tell_City Central Time - Indiana - Perry County -US +411745-0863730 America/Indiana/Knox Central Time - Indiana - Starke County -US +450628-0873651 America/Menominee Central Time - Michigan - Dickinson, Gogebic, Iron & Menominee Counties -US +470659-1011757 America/North_Dakota/Center Central Time - North Dakota - Oliver County -US +465042-1012439 America/North_Dakota/New_Salem Central Time - North Dakota - Morton County (except Mandan area) -US +471551-1014640 America/North_Dakota/Beulah Central Time - North Dakota - Mercer County -US +394421-1045903 America/Denver Mountain Time -US +433649-1161209 America/Boise Mountain Time - south Idaho & east Oregon -US +332654-1120424 America/Phoenix Mountain Standard Time - Arizona (except Navajo) -US +340308-1181434 America/Los_Angeles Pacific Time -US +550737-1313435 America/Metlakatla Pacific Standard Time - Annette Island, Alaska -US +611305-1495401 America/Anchorage Alaska Time -US +581807-1342511 America/Juneau Alaska Time - Alaska panhandle -US +571035-1351807 America/Sitka Alaska Time - southeast Alaska panhandle -US +593249-1394338 America/Yakutat Alaska Time - Alaska panhandle neck -US +643004-1652423 America/Nome Alaska Time - west Alaska +US +404251-0740023 America/New_York Eastern (most areas) +US +421953-0830245 America/Detroit Eastern - MI (most areas) +US +381515-0854534 America/Kentucky/Louisville Eastern - KY (Louisville area) +US +364947-0845057 America/Kentucky/Monticello Eastern - KY (Wayne) +US +394606-0860929 America/Indiana/Indianapolis Eastern - IN (most areas) +US +384038-0873143 America/Indiana/Vincennes Eastern - IN (Da, Du, K, Mn) +US +410305-0863611 America/Indiana/Winamac Eastern - IN (Pulaski) +US +382232-0862041 America/Indiana/Marengo Eastern - IN (Crawford) +US +382931-0871643 America/Indiana/Petersburg Eastern - IN (Pike) +US +384452-0850402 America/Indiana/Vevay Eastern - IN (Switzerland) +US +415100-0873900 America/Chicago Central (most areas) +US +375711-0864541 America/Indiana/Tell_City Central - IN (Perry) +US +411745-0863730 America/Indiana/Knox Central - IN (Starke) +US +450628-0873651 America/Menominee Central - MI (Wisconsin border) +US +470659-1011757 America/North_Dakota/Center Central - ND (Oliver) +US +465042-1012439 America/North_Dakota/New_Salem Central - ND (Morton rural) +US +471551-1014640 America/North_Dakota/Beulah Central - ND (Mercer) +US +394421-1045903 America/Denver Mountain (most areas) +US +433649-1161209 America/Boise Mountain - ID (south); OR (east) +US +332654-1120424 America/Phoenix MST - Arizona (except Navajo) +US +340308-1181434 America/Los_Angeles Pacific +US +611305-1495401 America/Anchorage Alaska (most areas) +US +581807-1342511 America/Juneau Alaska - Juneau area +US +571035-1351807 America/Sitka Alaska - Sitka area +US +550737-1313435 America/Metlakatla Alaska - Annette Island +US +593249-1394338 America/Yakutat Alaska - Yakutat +US +643004-1652423 America/Nome Alaska (west) US +515248-1763929 America/Adak Aleutian Islands US +211825-1575130 Pacific/Honolulu Hawaii UY -3453-05611 America/Montevideo -UZ +3940+06648 Asia/Samarkand west Uzbekistan -UZ +4120+06918 Asia/Tashkent east Uzbekistan +UZ +3940+06648 Asia/Samarkand Uzbekistan (west) +UZ +4120+06918 Asia/Tashkent Uzbekistan (east) VA +415408+0122711 Europe/Vatican VC +1309-06114 America/St_Vincent VE +1030-06656 America/Caracas diff --git a/contrib/tzdata/zone1970.tab b/contrib/tzdata/zone1970.tab index 5f584c3..5598d560 100644 --- a/contrib/tzdata/zone1970.tab +++ b/contrib/tzdata/zone1970.tab @@ -29,8 +29,8 @@ # most populous zones first, where that does not contradict (1). # # This table is intended as an aid for users, to help them select time -# zone data appropriate for their practical needs. It is not intended -# to take or endorse any position on legal or territorial claims. +# zone data entries appropriate for their practical needs. It is not +# intended to take or endorse any position on legal or territorial claims. # #country- #codes coordinates TZ comments @@ -39,21 +39,21 @@ AE,OM +2518+05518 Asia/Dubai AF +3431+06912 Asia/Kabul AL +4120+01950 Europe/Tirane AM +4011+04430 Asia/Yerevan -AQ -6734-06808 Antarctica/Rothera Rothera Station, Adelaide Island -AQ -6448-06406 Antarctica/Palmer Palmer Station, Anvers Island -AQ -6736+06253 Antarctica/Mawson Mawson Station, Holme Bay -AQ -6835+07758 Antarctica/Davis Davis Station, Vestfold Hills -AQ -6617+11031 Antarctica/Casey Casey Station, Bailey Peninsula -AQ -7824+10654 Antarctica/Vostok Vostok Station, Lake Vostok -AQ -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville Station, Terre Adelie -AQ -690022+0393524 Antarctica/Syowa Syowa Station, E Ongul I -AQ -720041+0023206 Antarctica/Troll Troll Station, Queen Maud Land +AQ -6617+11031 Antarctica/Casey Casey +AQ -6835+07758 Antarctica/Davis Davis +AQ -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville +AQ -6736+06253 Antarctica/Mawson Mawson +AQ -6448-06406 Antarctica/Palmer Palmer +AQ -6734-06808 Antarctica/Rothera Rothera +AQ -690022+0393524 Antarctica/Syowa Syowa +AQ -720041+0023206 Antarctica/Troll Troll +AQ -7824+10654 Antarctica/Vostok Vostok AR -3436-05827 America/Argentina/Buenos_Aires Buenos Aires (BA, CF) -AR -3124-06411 America/Argentina/Cordoba most locations (CB, CC, CN, ER, FM, MN, SE, SF) -AR -2447-06525 America/Argentina/Salta (SA, LP, NQ, RN) +AR -3124-06411 America/Argentina/Cordoba Argentina (most areas: CB, CC, CN, ER, FM, MN, SE, SF) +AR -2447-06525 America/Argentina/Salta Salta (SA, LP, NQ, RN) AR -2411-06518 America/Argentina/Jujuy Jujuy (JY) AR -2649-06513 America/Argentina/Tucuman Tucumán (TM) -AR -2828-06547 America/Argentina/Catamarca Catamarca (CT), Chubut (CH) +AR -2828-06547 America/Argentina/Catamarca Catamarca (CT); Chubut (CH) AR -2926-06651 America/Argentina/La_Rioja La Rioja (LR) AR -3132-06831 America/Argentina/San_Juan San Juan (SJ) AR -3253-06849 America/Argentina/Mendoza Mendoza (MZ) @@ -64,17 +64,17 @@ AS,UM -1416-17042 Pacific/Pago_Pago Samoa, Midway AT +4813+01620 Europe/Vienna AU -3133+15905 Australia/Lord_Howe Lord Howe Island AU -5430+15857 Antarctica/Macquarie Macquarie Island -AU -4253+14719 Australia/Hobart Tasmania - most locations -AU -3956+14352 Australia/Currie Tasmania - King Island +AU -4253+14719 Australia/Hobart Tasmania (most areas) +AU -3956+14352 Australia/Currie Tasmania (King Island) AU -3749+14458 Australia/Melbourne Victoria -AU -3352+15113 Australia/Sydney New South Wales - most locations -AU -3157+14127 Australia/Broken_Hill New South Wales - Yancowinna -AU -2728+15302 Australia/Brisbane Queensland - most locations -AU -2016+14900 Australia/Lindeman Queensland - Holiday Islands +AU -3352+15113 Australia/Sydney New South Wales (most areas) +AU -3157+14127 Australia/Broken_Hill New South Wales (Yancowinna) +AU -2728+15302 Australia/Brisbane Queensland (most areas) +AU -2016+14900 Australia/Lindeman Queensland (Whitsunday Islands) AU -3455+13835 Australia/Adelaide South Australia AU -1228+13050 Australia/Darwin Northern Territory -AU -3157+11551 Australia/Perth Western Australia - most locations -AU -3143+12852 Australia/Eucla Western Australia - Eucla area +AU -3157+11551 Australia/Perth Western Australia (most areas) +AU -3143+12852 Australia/Eucla Western Australia (Eucla) AZ +4023+04951 Asia/Baku BB +1306-05937 America/Barbados BD +2343+09025 Asia/Dhaka @@ -84,57 +84,58 @@ BM +3217-06446 Atlantic/Bermuda BN +0456+11455 Asia/Brunei BO -1630-06809 America/La_Paz BR -0351-03225 America/Noronha Atlantic islands -BR -0127-04829 America/Belem Amapá, E Pará -BR -0343-03830 America/Fortaleza NE Brazil (MA, PI, CE, RN, PB) +BR -0127-04829 America/Belem Pará (east); Amapá +BR -0343-03830 America/Fortaleza Brazil (northeast: MA, PI, CE, RN, PB) BR -0803-03454 America/Recife Pernambuco BR -0712-04812 America/Araguaina Tocantins BR -0940-03543 America/Maceio Alagoas, Sergipe BR -1259-03831 America/Bahia Bahia -BR -2332-04637 America/Sao_Paulo S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS) +BR -2332-04637 America/Sao_Paulo Brazil (southeast: GO, DF, MG, ES, RJ, SP, PR, SC, RS) BR -2027-05437 America/Campo_Grande Mato Grosso do Sul BR -1535-05605 America/Cuiaba Mato Grosso -BR -0226-05452 America/Santarem W Pará +BR -0226-05452 America/Santarem Pará (west) BR -0846-06354 America/Porto_Velho Rondônia BR +0249-06040 America/Boa_Vista Roraima -BR -0308-06001 America/Manaus E Amazonas -BR -0640-06952 America/Eirunepe W Amazonas +BR -0308-06001 America/Manaus Amazonas (east) +BR -0640-06952 America/Eirunepe Amazonas (west) BR -0958-06748 America/Rio_Branco Acre BS +2505-07721 America/Nassau BT +2728+08939 Asia/Thimphu BY +5354+02734 Europe/Minsk BZ +1730-08812 America/Belize -CA +4734-05243 America/St_Johns Newfoundland Time, including SE Labrador -CA +4439-06336 America/Halifax Atlantic Time - Nova Scotia (most places), PEI -CA +4612-05957 America/Glace_Bay Atlantic Time - Nova Scotia - places that did not observe DST 1966-1971 -CA +4606-06447 America/Moncton Atlantic Time - New Brunswick -CA +5320-06025 America/Goose_Bay Atlantic Time - Labrador - most locations -CA +5125-05707 America/Blanc-Sablon Atlantic Standard Time - Quebec - Lower North Shore -CA +4339-07923 America/Toronto Eastern Time - Ontario & Quebec - most locations -CA +4901-08816 America/Nipigon Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973 -CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario -CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut - most locations -CA +6608-06544 America/Pangnirtung Eastern Time - Pangnirtung, Nunavut -CA +744144-0944945 America/Resolute Central Time - Resolute, Nunavut -CA +484531-0913718 America/Atikokan Eastern Standard Time - Atikokan, Ontario and Southampton I, Nunavut -CA +624900-0920459 America/Rankin_Inlet Central Time - central Nunavut -CA +4953-09709 America/Winnipeg Central Time - Manitoba & west Ontario -CA +4843-09434 America/Rainy_River Central Time - Rainy River & Fort Frances, Ontario -CA +5024-10439 America/Regina Central Standard Time - Saskatchewan - most locations -CA +5017-10750 America/Swift_Current Central Standard Time - Saskatchewan - midwest -CA +5333-11328 America/Edmonton Mountain Time - Alberta, east British Columbia & west Saskatchewan -CA +690650-1050310 America/Cambridge_Bay Mountain Time - west Nunavut -CA +6227-11421 America/Yellowknife Mountain Time - central Northwest Territories -CA +682059-1334300 America/Inuvik Mountain Time - west Northwest Territories -CA +4906-11631 America/Creston Mountain Standard Time - Creston, British Columbia -CA +5946-12014 America/Dawson_Creek Mountain Standard Time - Dawson Creek & Fort Saint John, British Columbia -CA +4916-12307 America/Vancouver Pacific Time - west British Columbia -CA +6043-13503 America/Whitehorse Pacific Time - south Yukon -CA +6404-13925 America/Dawson Pacific Time - north Yukon +CA +4734-05243 America/St_Johns Newfoundland; Labrador (southeast) +CA +4439-06336 America/Halifax Atlantic - NS (most areas); PE +CA +4612-05957 America/Glace_Bay Atlantic - NS (Cape Breton) +CA +4606-06447 America/Moncton Atlantic - New Brunswick +CA +5320-06025 America/Goose_Bay Atlantic - Labrador (most areas) +CA +5125-05707 America/Blanc-Sablon AST - QC (Lower North Shore) +CA +4339-07923 America/Toronto Eastern - ON, QC (most areas) +CA +4901-08816 America/Nipigon Eastern - ON, QC (no DST 1967-73) +CA +4823-08915 America/Thunder_Bay Eastern - ON (Thunder Bay) +CA +6344-06828 America/Iqaluit Eastern - NU (most east areas) +CA +6608-06544 America/Pangnirtung Eastern - NU (Pangnirtung) +CA +484531-0913718 America/Atikokan EST - ON (Atikokan); NU (Coral H) +CA +4953-09709 America/Winnipeg Central - ON (west); Manitoba +CA +4843-09434 America/Rainy_River Central - ON (Rainy R, Ft Frances) +CA +744144-0944945 America/Resolute Central - NU (Resolute) +CA +624900-0920459 America/Rankin_Inlet Central - NU (central) +CA +5024-10439 America/Regina CST - SK (most areas) +CA +5017-10750 America/Swift_Current CST - SK (midwest) +CA +5333-11328 America/Edmonton Mountain - AB; BC (E); SK (W) +CA +690650-1050310 America/Cambridge_Bay Mountain - NU (west) +CA +6227-11421 America/Yellowknife Mountain - NT (central) +CA +682059-1334300 America/Inuvik Mountain - NT (west) +CA +4906-11631 America/Creston MST - BC (Creston) +CA +5946-12014 America/Dawson_Creek MST - BC (Dawson Cr, Ft St John) +CA +5848-12242 America/Fort_Nelson MST - BC (Ft Nelson) +CA +4916-12307 America/Vancouver Pacific - BC (most areas) +CA +6043-13503 America/Whitehorse Pacific - Yukon (south) +CA +6404-13925 America/Dawson Pacific - Yukon (north) CC -1210+09655 Indian/Cocos CH,DE,LI +4723+00832 Europe/Zurich Swiss time CI,BF,GM,GN,ML,MR,SH,SL,SN,ST,TG +0519-00402 Africa/Abidjan CK -2114-15946 Pacific/Rarotonga -CL -3327-07040 America/Santiago most locations +CL -3327-07040 America/Santiago Chile (most areas) CL -2709-10926 Pacific/Easter Easter Island CN +3114+12128 Asia/Shanghai Beijing Time CN +4348+08735 Asia/Urumqi Xinjiang Time @@ -144,25 +145,26 @@ CU +2308-08222 America/Havana CV +1455-02331 Atlantic/Cape_Verde CW,AW,BQ,SX +1211-06900 America/Curacao CX -1025+10543 Indian/Christmas -CY +3510+03322 Asia/Nicosia +CY +3510+03322 Asia/Nicosia Cyprus (most areas) +CY +3507+03357 Asia/Famagusta Northern Cyprus CZ,SK +5005+01426 Europe/Prague -DE +5230+01322 Europe/Berlin Berlin time +DE +5230+01322 Europe/Berlin Germany (most areas) DK +5540+01235 Europe/Copenhagen DO +1828-06954 America/Santo_Domingo DZ +3647+00303 Africa/Algiers -EC -0210-07950 America/Guayaquil mainland +EC -0210-07950 America/Guayaquil Ecuador (mainland) EC -0054-08936 Pacific/Galapagos Galápagos Islands EE +5925+02445 Europe/Tallinn EG +3003+03115 Africa/Cairo EH +2709-01312 Africa/El_Aaiun -ES +4024-00341 Europe/Madrid mainland -ES +3553-00519 Africa/Ceuta Ceuta & Melilla +ES +4024-00341 Europe/Madrid Spain (mainland) +ES +3553-00519 Africa/Ceuta Ceuta, Melilla ES +2806-01524 Atlantic/Canary Canary Islands FI,AX +6010+02458 Europe/Helsinki FJ -1808+17825 Pacific/Fiji FK -5142-05751 Atlantic/Stanley -FM +0725+15147 Pacific/Chuuk Chuuk (Truk) and Yap -FM +0658+15813 Pacific/Pohnpei Pohnpei (Ponape) +FM +0725+15147 Pacific/Chuuk Chuuk/Truk, Yap +FM +0658+15813 Pacific/Pohnpei Pohnpei/Ponape FM +0519+16259 Pacific/Kosrae Kosrae FO +6201-00646 Atlantic/Faroe FR +4852+00220 Europe/Paris @@ -171,10 +173,10 @@ GE +4143+04449 Asia/Tbilisi GF +0456-05220 America/Cayenne GH +0533-00013 Africa/Accra GI +3608-00521 Europe/Gibraltar -GL +6411-05144 America/Godthab most locations -GL +7646-01840 America/Danmarkshavn east coast, north of Scoresbysund -GL +7029-02158 America/Scoresbysund Scoresbysund / Ittoqqortoormiit -GL +7634-06847 America/Thule Thule / Pituffik +GL +6411-05144 America/Godthab Greenland (most areas) +GL +7646-01840 America/Danmarkshavn National Park (east coast) +GL +7029-02158 America/Scoresbysund Scoresbysund/Ittoqqortoormiit +GL +7634-06847 America/Thule Thule/Pituffik GR +3758+02343 Europe/Athens GS -5416-03632 Atlantic/South_Georgia GT +1438-09031 America/Guatemala @@ -185,10 +187,10 @@ HK +2217+11409 Asia/Hong_Kong HN +1406-08713 America/Tegucigalpa HT +1832-07220 America/Port-au-Prince HU +4730+01905 Europe/Budapest -ID -0610+10648 Asia/Jakarta Java & Sumatra -ID -0002+10920 Asia/Pontianak west & central Borneo -ID -0507+11924 Asia/Makassar east & south Borneo, Sulawesi (Celebes), Bali, Nusa Tengarra, west Timor -ID -0232+14042 Asia/Jayapura west New Guinea (Irian Jaya) & Malukus (Moluccas) +ID -0610+10648 Asia/Jakarta Java, Sumatra +ID -0002+10920 Asia/Pontianak Borneo (west, central) +ID -0507+11924 Asia/Makassar Borneo (east, south); Sulawesi/Celebes, Bali, Nusa Tengarra; Timor (west) +ID -0232+14042 Asia/Jayapura New Guinea (West Papua / Irian Jaya); Malukus/Moluccas IE +5320-00615 Europe/Dublin IL +314650+0351326 Asia/Jerusalem IN +2232+08822 Asia/Kolkata @@ -207,10 +209,10 @@ KI -0308-17105 Pacific/Enderbury Phoenix Islands KI +0152-15720 Pacific/Kiritimati Line Islands KP +3901+12545 Asia/Pyongyang KR +3733+12658 Asia/Seoul -KZ +4315+07657 Asia/Almaty most locations -KZ +4448+06528 Asia/Qyzylorda Qyzylorda (Kyzylorda, Kzyl-Orda) -KZ +5017+05710 Asia/Aqtobe Aqtobe (Aktobe) -KZ +4431+05016 Asia/Aqtau Atyrau (Atirau, Gur'yev), Mangghystau (Mankistau) +KZ +4315+07657 Asia/Almaty Kazakhstan (most areas) +KZ +4448+06528 Asia/Qyzylorda Qyzylorda/Kyzylorda/Kzyl-Orda +KZ +5017+05710 Asia/Aqtobe Aqtobe/Aktobe +KZ +4431+05016 Asia/Aqtau Atyrau/Atirau/Gur'yev, Mangghystau/Mankistau KZ +5113+05121 Asia/Oral West Kazakhstan LB +3353+03530 Asia/Beirut LK +0656+07951 Asia/Colombo @@ -222,10 +224,10 @@ LY +3254+01311 Africa/Tripoli MA +3339-00735 Africa/Casablanca MC +4342+00723 Europe/Monaco MD +4700+02850 Europe/Chisinau -MH +0709+17112 Pacific/Majuro most locations +MH +0709+17112 Pacific/Majuro Marshall Islands (most areas) MH +0905+16720 Pacific/Kwajalein Kwajalein -MM +1647+09610 Asia/Rangoon -MN +4755+10653 Asia/Ulaanbaatar most locations +MM +1647+09610 Asia/Yangon +MN +4755+10653 Asia/Ulaanbaatar Mongolia (most areas) MN +4801+09139 Asia/Hovd Bayan-Ölgii, Govi-Altai, Hovd, Uvs, Zavkhan MN +4804+11430 Asia/Choibalsan Dornod, Sükhbaatar MO +2214+11335 Asia/Macau @@ -233,25 +235,24 @@ MQ +1436-06105 America/Martinique MT +3554+01431 Europe/Malta MU -2010+05730 Indian/Mauritius MV +0410+07330 Indian/Maldives -MX +1924-09909 America/Mexico_City Central Time - most locations -MX +2105-08646 America/Cancun Central Time - Quintana Roo +MX +1924-09909 America/Mexico_City Central Time +MX +2105-08646 America/Cancun Eastern Standard Time - Quintana Roo MX +2058-08937 America/Merida Central Time - Campeche, Yucatán -MX +2540-10019 America/Monterrey Mexican Central Time - Coahuila, Durango, Nuevo León, Tamaulipas away from US border -MX +2550-09730 America/Matamoros US Central Time - Coahuila, Durango, Nuevo León, Tamaulipas near US border -MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa -MX +2838-10605 America/Chihuahua Mexican Mountain Time - Chihuahua away from US border -MX +2934-10425 America/Ojinaga US Mountain Time - Chihuahua near US border +MX +2540-10019 America/Monterrey Central Time - Durango; Coahuila, Nuevo León, Tamaulipas (most areas) +MX +2550-09730 America/Matamoros Central Time US - Coahuila, Nuevo León, Tamaulipas (US border) +MX +2313-10625 America/Mazatlan Mountain Time - Baja California Sur, Nayarit, Sinaloa +MX +2838-10605 America/Chihuahua Mountain Time - Chihuahua (most areas) +MX +2934-10425 America/Ojinaga Mountain Time US - Chihuahua (US border) MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora -MX +3232-11701 America/Tijuana US Pacific Time - Baja California near US border -MX +3018-11452 America/Santa_Isabel Mexican Pacific Time - Baja California away from US border -MX +2048-10515 America/Bahia_Banderas Mexican Central Time - Bahía de Banderas -MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia -MY +0133+11020 Asia/Kuching Sabah & Sarawak -MZ,BI,BW,CD,MW,RW,ZM,ZW -2558+03235 Africa/Maputo Central Africa Time (UTC+2) +MX +3232-11701 America/Tijuana Pacific Time US - Baja California +MX +2048-10515 America/Bahia_Banderas Central Time - Bahía de Banderas +MY +0310+10142 Asia/Kuala_Lumpur Malaysia (peninsula) +MY +0133+11020 Asia/Kuching Sabah, Sarawak +MZ,BI,BW,CD,MW,RW,ZM,ZW -2558+03235 Africa/Maputo Central Africa Time NA -2234+01706 Africa/Windhoek NC -2216+16627 Pacific/Noumea NF -2903+16758 Pacific/Norfolk -NG,AO,BJ,CD,CF,CG,CM,GA,GQ,NE +0627+00324 Africa/Lagos West Africa Time (UTC+1) +NG,AO,BJ,CD,CF,CG,CM,GA,GQ,NE +0627+00324 Africa/Lagos West Africa Time NI +1209-08617 America/Managua NL +5222+00454 Europe/Amsterdam NO,SJ +5955+01045 Europe/Oslo @@ -265,7 +266,8 @@ PE -1203-07703 America/Lima PF -1732-14934 Pacific/Tahiti Society Islands PF -0900-13930 Pacific/Marquesas Marquesas Islands PF -2308-13457 Pacific/Gambier Gambier Islands -PG -0930+14710 Pacific/Port_Moresby +PG -0930+14710 Pacific/Port_Moresby Papua New Guinea (most areas) +PG -0613+15534 Pacific/Bougainville Bougainville PH +1435+12100 Asia/Manila PK +2452+06703 Asia/Karachi PL +5215+02100 Europe/Warsaw @@ -274,36 +276,41 @@ PN -2504-13005 Pacific/Pitcairn PR +182806-0660622 America/Puerto_Rico PS +3130+03428 Asia/Gaza Gaza Strip PS +313200+0350542 Asia/Hebron West Bank -PT +3843-00908 Europe/Lisbon mainland +PT +3843-00908 Europe/Lisbon Portugal (mainland) PT +3238-01654 Atlantic/Madeira Madeira Islands PT +3744-02540 Atlantic/Azores Azores PW +0720+13429 Pacific/Palau PY -2516-05740 America/Asuncion QA,BH +2517+05132 Asia/Qatar -RE,TF -2052+05528 Indian/Reunion Réunion, Crozet Is, Scattered Is +RE,TF -2052+05528 Indian/Reunion Réunion, Crozet, Scattered Islands RO +4426+02606 Europe/Bucharest RS,BA,HR,ME,MK,SI +4450+02030 Europe/Belgrade -RU +5443+02030 Europe/Kaliningrad Moscow-01 - Kaliningrad -RU +554521+0373704 Europe/Moscow Moscow+00 - west Russia -RU +4457+03406 Europe/Simferopol Moscow+00 - Crimea -RU +4844+04425 Europe/Volgograd Moscow+00 - Caspian Sea -RU +5312+05009 Europe/Samara Moscow+00 (Moscow+01 after 2014-10-26) - Samara, Udmurtia -RU +5651+06036 Asia/Yekaterinburg Moscow+02 - Urals -RU +5500+07324 Asia/Omsk Moscow+03 - west Siberia -RU +5502+08255 Asia/Novosibirsk Moscow+03 - Novosibirsk -RU +5345+08707 Asia/Novokuznetsk Moscow+03 (Moscow+04 after 2014-10-26) - Kemerovo -RU +5601+09250 Asia/Krasnoyarsk Moscow+04 - Yenisei River -RU +5216+10420 Asia/Irkutsk Moscow+05 - Lake Baikal -RU +5203+11328 Asia/Chita Moscow+06 (Moscow+05 after 2014-10-26) - Zabaykalsky -RU +6200+12940 Asia/Yakutsk Moscow+06 - Lena River -RU +623923+1353314 Asia/Khandyga Moscow+06 - Tomponsky, Ust-Maysky -RU +4310+13156 Asia/Vladivostok Moscow+07 - Amur River -RU +4658+14242 Asia/Sakhalin Moscow+07 - Sakhalin Island -RU +643337+1431336 Asia/Ust-Nera Moscow+07 - Oymyakonsky -RU +5934+15048 Asia/Magadan Moscow+08 (Moscow+07 after 2014-10-26) - Magadan -RU +6728+15343 Asia/Srednekolymsk Moscow+08 - E Sakha, N Kuril Is -RU +5301+15839 Asia/Kamchatka Moscow+08 (Moscow+09 after 2014-10-26) - Kamchatka -RU +6445+17729 Asia/Anadyr Moscow+08 (Moscow+09 after 2014-10-26) - Bering Sea +RU +5443+02030 Europe/Kaliningrad MSK-01 - Kaliningrad +RU +554521+0373704 Europe/Moscow MSK+00 - Moscow area +RU +4457+03406 Europe/Simferopol MSK+00 - Crimea +RU +4844+04425 Europe/Volgograd MSK+00 - Volgograd, Saratov +RU +5836+04939 Europe/Kirov MSK+00 - Kirov +RU +4621+04803 Europe/Astrakhan MSK+01 - Astrakhan +RU +5312+05009 Europe/Samara MSK+01 - Samara, Udmurtia +RU +5420+04824 Europe/Ulyanovsk MSK+01 - Ulyanovsk +RU +5651+06036 Asia/Yekaterinburg MSK+02 - Urals +RU +5500+07324 Asia/Omsk MSK+03 - Omsk +RU +5502+08255 Asia/Novosibirsk MSK+03 - Novosibirsk +RU +5322+08345 Asia/Barnaul MSK+04 - Altai +RU +5630+08458 Asia/Tomsk MSK+04 - Tomsk +RU +5345+08707 Asia/Novokuznetsk MSK+04 - Kemerovo +RU +5601+09250 Asia/Krasnoyarsk MSK+04 - Krasnoyarsk area +RU +5216+10420 Asia/Irkutsk MSK+05 - Irkutsk, Buryatia +RU +5203+11328 Asia/Chita MSK+06 - Zabaykalsky +RU +6200+12940 Asia/Yakutsk MSK+06 - Lena River +RU +623923+1353314 Asia/Khandyga MSK+06 - Tomponsky, Ust-Maysky +RU +4310+13156 Asia/Vladivostok MSK+07 - Amur River +RU +643337+1431336 Asia/Ust-Nera MSK+07 - Oymyakonsky +RU +5934+15048 Asia/Magadan MSK+08 - Magadan +RU +4658+14242 Asia/Sakhalin MSK+08 - Sakhalin Island +RU +6728+15343 Asia/Srednekolymsk MSK+08 - Sakha (E); North Kuril Is +RU +5301+15839 Asia/Kamchatka MSK+09 - Kamchatka +RU +6445+17729 Asia/Anadyr MSK+09 - Bering Sea SA,KW,YE +2438+04643 Asia/Riyadh SB -0932+16012 Pacific/Guadalcanal SC -0440+05528 Indian/Mahe @@ -315,8 +322,8 @@ SV +1342-08912 America/El_Salvador SY +3330+03618 Asia/Damascus TC +2128-07108 America/Grand_Turk TD +1207+01503 Africa/Ndjamena -TF -492110+0701303 Indian/Kerguelen Kerguelen, St Paul I, Amsterdam I -TH,KH,LA,VN +1345+10031 Asia/Bangkok +TF -492110+0701303 Indian/Kerguelen Kerguelen, St Paul Island, Amsterdam Island +TH,KH,LA,VN +1345+10031 Asia/Bangkok Indochina (most areas) TJ +3835+06848 Asia/Dushanbe TK -0922-17114 Pacific/Fakaofo TL -0833+12535 Asia/Dili @@ -324,46 +331,47 @@ TM +3757+05823 Asia/Ashgabat TN +3648+01011 Africa/Tunis TO -2110-17510 Pacific/Tongatapu TR +4101+02858 Europe/Istanbul -TT,AG,AI,BL,DM,GD,GP,MF,LC,KN,MS,VC,VG,VI +1039-06131 America/Port_of_Spain +TT,AG,AI,BL,DM,GD,GP,KN,LC,MF,MS,VC,VG,VI +1039-06131 America/Port_of_Spain TV -0831+17913 Pacific/Funafuti TW +2503+12130 Asia/Taipei -UA +5026+03031 Europe/Kiev most locations +UA +5026+03031 Europe/Kiev Ukraine (most areas) UA +4837+02218 Europe/Uzhgorod Ruthenia -UA +4750+03510 Europe/Zaporozhye Zaporozh'ye, E Lugansk / Zaporizhia, E Luhansk +UA +4750+03510 Europe/Zaporozhye Zaporozh'ye/Zaporizhia; Lugansk/Luhansk (east) UM +1917+16637 Pacific/Wake Wake Island -US +404251-0740023 America/New_York Eastern Time -US +421953-0830245 America/Detroit Eastern Time - Michigan - most locations -US +381515-0854534 America/Kentucky/Louisville Eastern Time - Kentucky - Louisville area -US +364947-0845057 America/Kentucky/Monticello Eastern Time - Kentucky - Wayne County -US +394606-0860929 America/Indiana/Indianapolis Eastern Time - Indiana - most locations -US +384038-0873143 America/Indiana/Vincennes Eastern Time - Indiana - Daviess, Dubois, Knox & Martin Counties -US +410305-0863611 America/Indiana/Winamac Eastern Time - Indiana - Pulaski County -US +382232-0862041 America/Indiana/Marengo Eastern Time - Indiana - Crawford County -US +382931-0871643 America/Indiana/Petersburg Eastern Time - Indiana - Pike County -US +384452-0850402 America/Indiana/Vevay Eastern Time - Indiana - Switzerland County -US +415100-0873900 America/Chicago Central Time -US +375711-0864541 America/Indiana/Tell_City Central Time - Indiana - Perry County -US +411745-0863730 America/Indiana/Knox Central Time - Indiana - Starke County -US +450628-0873651 America/Menominee Central Time - Michigan - Dickinson, Gogebic, Iron & Menominee Counties -US +470659-1011757 America/North_Dakota/Center Central Time - North Dakota - Oliver County -US +465042-1012439 America/North_Dakota/New_Salem Central Time - North Dakota - Morton County (except Mandan area) -US +471551-1014640 America/North_Dakota/Beulah Central Time - North Dakota - Mercer County -US +394421-1045903 America/Denver Mountain Time -US +433649-1161209 America/Boise Mountain Time - south Idaho & east Oregon -US +332654-1120424 America/Phoenix Mountain Standard Time - Arizona (except Navajo) -US +340308-1181434 America/Los_Angeles Pacific Time -US +550737-1313435 America/Metlakatla Pacific Standard Time - Annette Island, Alaska -US +611305-1495401 America/Anchorage Alaska Time -US +581807-1342511 America/Juneau Alaska Time - Alaska panhandle -US +571035-1351807 America/Sitka Alaska Time - southeast Alaska panhandle -US +593249-1394338 America/Yakutat Alaska Time - Alaska panhandle neck -US +643004-1652423 America/Nome Alaska Time - west Alaska +US +404251-0740023 America/New_York Eastern (most areas) +US +421953-0830245 America/Detroit Eastern - MI (most areas) +US +381515-0854534 America/Kentucky/Louisville Eastern - KY (Louisville area) +US +364947-0845057 America/Kentucky/Monticello Eastern - KY (Wayne) +US +394606-0860929 America/Indiana/Indianapolis Eastern - IN (most areas) +US +384038-0873143 America/Indiana/Vincennes Eastern - IN (Da, Du, K, Mn) +US +410305-0863611 America/Indiana/Winamac Eastern - IN (Pulaski) +US +382232-0862041 America/Indiana/Marengo Eastern - IN (Crawford) +US +382931-0871643 America/Indiana/Petersburg Eastern - IN (Pike) +US +384452-0850402 America/Indiana/Vevay Eastern - IN (Switzerland) +US +415100-0873900 America/Chicago Central (most areas) +US +375711-0864541 America/Indiana/Tell_City Central - IN (Perry) +US +411745-0863730 America/Indiana/Knox Central - IN (Starke) +US +450628-0873651 America/Menominee Central - MI (Wisconsin border) +US +470659-1011757 America/North_Dakota/Center Central - ND (Oliver) +US +465042-1012439 America/North_Dakota/New_Salem Central - ND (Morton rural) +US +471551-1014640 America/North_Dakota/Beulah Central - ND (Mercer) +US +394421-1045903 America/Denver Mountain (most areas) +US +433649-1161209 America/Boise Mountain - ID (south); OR (east) +US +332654-1120424 America/Phoenix MST - Arizona (except Navajo) +US +340308-1181434 America/Los_Angeles Pacific +US +611305-1495401 America/Anchorage Alaska (most areas) +US +581807-1342511 America/Juneau Alaska - Juneau area +US +571035-1351807 America/Sitka Alaska - Sitka area +US +550737-1313435 America/Metlakatla Alaska - Annette Island +US +593249-1394338 America/Yakutat Alaska - Yakutat +US +643004-1652423 America/Nome Alaska (west) US +515248-1763929 America/Adak Aleutian Islands -US,UM +211825-1575130 Pacific/Honolulu Hawaii time +US,UM +211825-1575130 Pacific/Honolulu Hawaii UY -3453-05611 America/Montevideo -UZ +3940+06648 Asia/Samarkand west Uzbekistan -UZ +4120+06918 Asia/Tashkent east Uzbekistan +UZ +3940+06648 Asia/Samarkand Uzbekistan (west) +UZ +4120+06918 Asia/Tashkent Uzbekistan (east) VE +1030-06656 America/Caracas +VN +1045+10640 Asia/Ho_Chi_Minh Vietnam (south) VU -1740+16825 Pacific/Efate WF -1318-17610 Pacific/Wallis WS -1350-17144 Pacific/Apia diff --git a/contrib/tzdata/zoneinfo2tdf.pl b/contrib/tzdata/zoneinfo2tdf.pl new file mode 100755 index 0000000..e05ec01 --- /dev/null +++ b/contrib/tzdata/zoneinfo2tdf.pl @@ -0,0 +1,52 @@ +#! /usr/bin/perl -w + +# Courtesy Ken Pizzini. + +use strict; + +#This file released to the public domain. + +# Note: error checking is poor; trust the output only if the input +# has been checked by zic. + +my $contZone = ''; +while (<>) { + my $origline = $_; + my @fields = (); + while (s/^\s*((?:"[^"]*"|[^\s#])+)//) { + push @fields, $1; + } + next unless @fields; + + my $type = lc($fields[0]); + if ($contZone) { + @fields >= 3 or warn "bad continuation line"; + unshift @fields, '+', $contZone; + $type = 'zone'; + } + + $contZone = ''; + if ($type eq 'zone') { + # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] + my $nfields = @fields; + $nfields >= 5 or warn "bad zone line"; + if ($nfields > 6) { + #this splice is optional, depending on one's preference + #(one big date-time field, or componentized date and time): + splice(@fields, 5, $nfields-5, "@fields[5..$nfields-1]"); + } + $contZone = $fields[1] if @fields > 5; + } elsif ($type eq 'rule') { + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S + @fields == 10 or warn "bad rule line"; + } elsif ($type eq 'link') { + # Link TARGET LINK-NAME + @fields == 3 or warn "bad link line"; + } elsif ($type eq 'leap') { + # Leap YEAR MONTH DAY HH:MM:SS CORR R/S + @fields == 7 or warn "bad leap line"; + } else { + warn "Fubar at input line $.: $origline"; + } + print join("\t", @fields), "\n"; +} |