Undo commit r267455, which was done in the wrong directory.

8 files changed, 196 insertions, 180 deletions

diff --git a/contrib/tzdata/africa b/contrib/tzdata/africa
index 90f7735..83bff2e 100644
--- a/contrib/tzdata/africa
+++ b/contrib/tzdata/africa
@@ -239,13 +239,13 @@ Rule	Egypt	1990	1994	-	May	 1	1:00	1:00	S
 # http://www.worldtimezone.com/dst_news/dst_news_egypt04.html
 # </a>
 Rule	Egypt	1995	2010	-	Apr	lastFri	 0:00s	1:00	S
-Rule	Egypt	1995	2005	-	Sep	lastThu	24:00	0	-
+Rule	Egypt	1995	2005	-	Sep	lastThu	23:00s	0	-
 # From Steffen Thorsen (2006-09-19):
 # The Egyptian Gazette, issue 41,090 (2006-09-18), page 1, reports:
 # Egypt will turn back clocks by one hour at the midnight of Thursday
 # after observing the daylight saving time since May.
 # http://news.gom.com.eg/gazette/pdf/2006/09/18/01.pdf
-Rule	Egypt	2006	only	-	Sep	21	24:00	0	-
+Rule	Egypt	2006	only	-	Sep	21	23:00s	0	-
 # From Dirk Losch (2007-08-14):
 # I received a mail from an airline which says that the daylight
 # saving time in Egypt will end in the night of 2007-09-06 to 2007-09-07.
@@ -254,7 +254,7 @@ Rule	Egypt	2006	only	-	Sep	21	24:00	0	-
 # http://www.timeanddate.com/worldclock/city.html?n=53
 # From Steffen Thorsen (2007-09-04): The official information...:
 # http://www.sis.gov.eg/En/EgyptOnline/Miscellaneous/000002/0207000000000000001580.htm
-Rule	Egypt	2007	only	-	Sep	Thu>=1	24:00	0	-
+Rule	Egypt	2007	only	-	Sep	Thu>=1	23:00s	0	-
 # From Abdelrahman Hassan (2007-09-06):
 # Due to the Hijri (lunar Islamic calendar) year being 11 days shorter
 # than the year of the Gregorian calendar, Ramadan shifts earlier each
@@ -342,77 +342,46 @@ Rule	Egypt	2007	only	-	Sep	Thu>=1	24:00	0	-
 # From Gunther Vermier (2015-05-13):
 # our Egypt office confirms that the change will be at 15 May "midnight" (24:00)
 
-# From Imed Chihi (2014-06-04):
-# We have finally "located" a precise official reference about the DST changes
-# in Egypt.  The Ministers Cabinet decision is explained at
-# http://www.cabinet.gov.eg/Media/CabinetMeetingsDetails.aspx?id=347 ...
-# [T]his (Arabic) site is not accessible outside Egypt, but the page ...
-# translates into: "With regard to daylight saving time, it is scheduled to
-# take effect at exactly twelve o'clock this evening, Thursday, 15 MAY 2014,
-# to be suspended by twelve o'clock on the evening of Thursday, 26 JUN 2014,
-# and re-established again at the end of the month of Ramadan, at twelve
-# o'clock on the evening of Thursday, 31 JUL 2014."  This statement has been
-# reproduced by other (more accessible) sites[, e.g.,]...
-# http://elgornal.net/news/news.aspx?id=4699258
-
-# From Paul Eggert (2014-06-04):
+# From Paul Eggert (2014-05-13):
 # Sarah El Deeb and Lee Keath of AP report that the Egyptian government says
 # the change is because of blackouts in Cairo, even though Ahram Online (cited
-# above) says DST had no affect on electricity consumption.  There is
-# no information about when DST will end this fall.  See:
+# above) says DST had no affect on electricity consumption.  The AP story says
+# DST will not be observed during Ramadan.  There is no information about when
+# DST will end.  See:
 # http://abcnews.go.com/International/wireStory/el-sissi-pushes-egyptians-line-23614833
 #
-# 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))))
-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	-
-Rule	Egypt	2010	only	-	Sep	 9	24:00	1:00	S
-Rule	Egypt	2010	only	-	Sep	lastThu	24:00	0	-
+# For now, guess that later transitions will use 2010's rules, and that
+# Egypt will agree with Morocco (see below) about the date Ramadan starts and
+# ends, though (unlike Morocco) it will switch at 00:00 standard time.  In
+# Egypt the spring-forward transitions are removed for 2020-2022, when the
+# guessed spring-forward date falls during the estimated Ramadan, and all
+# transitions removed for 2023-2038, where the estimated Ramadan falls entirely
+# outside the guessed daylight-saving time.  Ramadan intrudes on the guessed
+# DST starting in 2039, but that's beyond our somewhat-arbitrary cutoff.
+
+Rule	Egypt	2008	only	-	Aug	lastThu	23:00s	0	-
+Rule	Egypt	2009	only	-	Aug	20	23:00s	0	-
+Rule	Egypt	2010	only	-	Aug	11	0:00	0	-
+Rule	Egypt	2010	only	-	Sep	10	0:00	1:00	S
+Rule	Egypt	2010	only	-	Sep	lastThu	23:00s	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	2014	only	-	Jun	29	 0:00s	0	-
+Rule	Egypt	2014	only	-	Jul	29	 0:00s	1:00	S
+Rule	Egypt	2014	max	-	Sep	lastThu	23:00s	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	2015	only	-	Jun	18	 0:00s	0	-
+Rule	Egypt	2015	only	-	Jul	18	 0:00s	1:00	S
+Rule	Egypt	2016	only	-	Jun	 7	 0:00s	0	-
+Rule	Egypt	2016	only	-	Jul	 7	 0:00s	1:00	S
+Rule	Egypt	2017	only	-	May	27	 0:00s	0	-
+Rule	Egypt	2017	only	-	Jun	26	 0:00s	1:00	S
+Rule	Egypt	2018	only	-	May	16	 0:00s	0	-
+Rule	Egypt	2018	only	-	Jun	15	 0:00s	1:00	S
+Rule	Egypt	2019	only	-	May	 6	 0:00s	0	-
+Rule	Egypt	2019	only	-	Jun	 5	 0:00s	1:00	S
+Rule	Egypt	2020	only	-	May	24	 0:00s	1:00	S
+Rule	Egypt	2021	only	-	May	13	 0:00s	1:00	S
+Rule	Egypt	2022	only	-	May	 3	 0:00s	1:00	S
 Rule	Egypt	2023	max	-	Apr	lastFri	 0:00s	1:00	S
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -945,36 +914,39 @@ Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul	# Mamoutzou
 # From Sebastien Willemijns (2014-03-18):
 # http://www.afriquinfos.com/articles/2014/3/18/maroc-heure-dete-avancez-tous-horloges-247891.asp
 
-# From Milamber Space Network (2014-06-05):
-# The Moroccan government has recently announced that the country will return
-# to standard time at 03:00 on Saturday, June 28, 2014 local time....  DST
-# 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,
-# 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
-# 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))
-#   (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))
-#         (setq b (1+ b)))
-#       (setq a (calendar-gregorian-from-absolute a))
-#       (setq b (calendar-gregorian-from-absolute b))
-#       (insert
-#        (format
-#         (concat "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 3:00\t0\t-\n"
-#                 "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 2:00\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)))))
+# From Paul Eggert (2014-03-19):
+# To estimate what the Moroccan government will do in future years,
+# transition dates for 2014 through 2038 were determined by running
+# the following program under GNU Emacs 24.3:
+#
+# (let ((islamic-year 1435))
+#   (while (< islamic-year 1461)
+#     (let ((a
+#	     (calendar-gregorian-from-absolute
+#	      (calendar-islamic-to-absolute (list 9 1 islamic-year))))
+#	    (b
+#	     (calendar-gregorian-from-absolute
+#	      (calendar-islamic-to-absolute (list 10 1 islamic-year)))))
+#	(insert
+#	 (format
+#	  (concat "Rule\tMorocco\t%d\tonly\t-\t%s\t %2d\t 3:00\t0\t-\n"
+#		  "Rule\tMorocco\t%d\tonly\t-\t%s\t %2d\t 2:00\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))))
+#
+# with spring-forward transitions removed for 2023-2025, when the
+# normal spring-forward date falls during the estimated Ramadan; with
+# all transitions removed for 2026-2035, where the estimated Ramadan
+# falls entirely outside daylight-saving time; and with fall-back
+# transitions removed for 2036-2037, where the normal fall-back
+# date falls during the estimated Ramadan.  Normally, the table would
+# stop after 2037 because 32-bit time_t values roll around early in 2038,
+# but that would imply a prediction of perpetual DST after March 2038
+# due to the year-2037 glitches.  So, this table instead stops after
+# 2038, the first non-glitchy year after the 32-bit rollover.
+# An advantage of stopping after 2038 is that it lets zic guess
+# TZ='WET0WEST,M3.5.0,M10.5.0/3' for time stamps far in the future.
 
 # RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 
@@ -996,44 +968,46 @@ Rule	Morocco	1978	only	-	Aug	 4	 0:00	0	-
 Rule	Morocco	2008	only	-	Jun	 1	 0:00	1:00	S
 Rule	Morocco	2008	only	-	Sep	 1	 0:00	0	-
 Rule	Morocco	2009	only	-	Jun	 1	 0:00	1:00	S
-Rule	Morocco	2009	only	-	Aug	21	 0:00	0	-
+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	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	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	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	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	2011	only	-	Jul	 31	 0	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	2013	only	-	Jul	  7	 3:00	0	-
+Rule	Morocco	2013	only	-	Aug	 10	 2:00	1:00	S
+Rule	Morocco	2013	2035	-	Oct	 lastSun 3:00	0	-
+Rule	Morocco	2014	2022	-	Mar	 lastSun 2:00	1:00	S
+Rule	Morocco	2014	only	-	Jun	 29	 3:00	0	-
+Rule	Morocco	2014	only	-	Jul	 29	 2:00	1:00	S
+Rule	Morocco	2015	only	-	Jun	 18	 3:00	0	-
+Rule	Morocco	2015	only	-	Jul	 18	 2:00	1:00	S
+Rule	Morocco	2016	only	-	Jun	  7	 3:00	0	-
+Rule	Morocco	2016	only	-	Jul	  7	 2:00	1:00	S
+Rule	Morocco	2017	only	-	May	 27	 3:00	0	-
+Rule	Morocco	2017	only	-	Jun	 26	 2:00	1:00	S
+Rule	Morocco	2018	only	-	May	 16	 3:00	0	-
+Rule	Morocco	2018	only	-	Jun	 15	 2:00	1:00	S
+Rule	Morocco	2019	only	-	May	  6	 3:00	0	-
+Rule	Morocco	2019	only	-	Jun	  5	 2:00	1:00	S
+Rule	Morocco	2020	only	-	Apr	 24	 3:00	0	-
+Rule	Morocco	2020	only	-	May	 24	 2:00	1:00	S
+Rule	Morocco	2021	only	-	Apr	 13	 3:00	0	-
+Rule	Morocco	2021	only	-	May	 13	 2:00	1:00	S
+Rule	Morocco	2022	only	-	Apr	  3	 3:00	0	-
+Rule	Morocco	2022	only	-	May	  3	 2:00	1:00	S
+Rule	Morocco	2023	only	-	Apr	 22	 2:00	1:00	S
+Rule	Morocco	2024	only	-	Apr	 10	 2:00	1:00	S
+Rule	Morocco	2025	only	-	Mar	 31	 2:00	1:00	S
+Rule	Morocco	2026	max	-	Mar	 lastSun 2:00	1:00	S
+Rule	Morocco	2036	only	-	Oct	 21	 3:00	0	-
+Rule	Morocco	2037	only	-	Oct	 11	 3:00	0	-
+Rule	Morocco	2038	only	-	Sep	 30	 3:00	0	-
+Rule	Morocco	2038	only	-	Oct	 30	 2:00	1:00	S
+Rule	Morocco	2038	max	-	Oct	 lastSun 3:00	0	-
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
diff --git a/contrib/tzdata/australasia b/contrib/tzdata/australasia
index 2a8297b..a61c184 100644
--- a/contrib/tzdata/australasia
+++ b/contrib/tzdata/australasia
@@ -250,14 +250,24 @@ Zone Antarctica/Macquarie 0	-	zzz	1899 Nov
 Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
 			7:00	-	CXT	# Christmas Island Time
 
-# Cocos (Keeling) Is
+# Cook Is
+# From Shanks & Pottenger:
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+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
+			-10:00	Cook	CK%sT
+
+# Cocos
 # These islands were ruled by the Ross family from about 1830 to 1978.
 # We don't know when standard time was introduced; for now, we guess 1900.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Cocos	6:27:40	-	LMT	1900
 			6:30	-	CCT	# Cocos Islands Time
 
-
 # Fiji
 
 # Milne gives 11:55:44 for Suva.
@@ -463,8 +473,7 @@ Rule	NZ	1934	1940	-	Apr	lastSun	2:00	0	M
 Rule	NZ	1934	1940	-	Sep	lastSun	2:00	0:30	S
 Rule	NZ	1946	only	-	Jan	 1	0:00	0	S
 # Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no
-# convenient single notation for the date and time of this transition
-# so we must duplicate the Rule lines.
+# convenient notation for this so we must duplicate the Rule lines.
 Rule	NZ	1974	only	-	Nov	Sun>=1	2:00s	1:00	D
 Rule	Chatham	1974	only	-	Nov	Sun>=1	2:45s	1:00	D
 Rule	NZ	1975	only	-	Feb	lastSun	2:00s	0	S
@@ -502,17 +511,6 @@ Link Pacific/Auckland Antarctica/McMurdo
 # previously whalers, sealers, pastoralists, and scientific personnel wintered
 # was probably like Pacific/Auckland
 
-# Cook Is
-# From Shanks & Pottenger:
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-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
-			-10:00	Cook	CK%sT
-
 ###############################################################################
 
 
diff --git a/contrib/tzdata/etcetera b/contrib/tzdata/etcetera
index 9ba7f7b..0f9ac0f 100644
--- a/contrib/tzdata/etcetera
+++ b/contrib/tzdata/etcetera
@@ -15,9 +15,9 @@ Zone	Etc/UCT		0	-	UCT
 
 # The following link uses older naming conventions,
 # but it belongs here, not in the file `backward',
-# as functions like gmtime load the "GMT" file to handle leap seconds properly.
+# as functions like gmtime load the "UTC" file to handle leap seconds properly.
 # We want this to work even on installations that omit the other older names.
-Link	Etc/GMT				GMT
+Link	Etc/UTC				UTC
 
 Link	Etc/UTC				Etc/Universal
 Link	Etc/UTC				Etc/Zulu
diff --git a/contrib/tzdata/europe b/contrib/tzdata/europe
index 7ae96ff..bfc596a 100644
--- a/contrib/tzdata/europe
+++ b/contrib/tzdata/europe
@@ -6,7 +6,7 @@
 # go ahead and edit the file (and please send any changes to
 # tz@iana.org for general use in the future).
 
-# From Paul Eggert (2014-05-31):
+# From Paul Eggert (2006-03-22):
 # A good source for time zone historical data outside the U.S. is
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
@@ -17,9 +17,6 @@
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.
 #
-# A reliable and entertaining source about time zones is
-# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
-#
 # Except where otherwise noted, Shanks & Pottenger is the source for
 # entries through 1991, and IATA SSIM is the source for entries afterwards.
 #
@@ -29,9 +26,9 @@
 #	Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
 #	which I found in the UCLA library.
 #
+#	<a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf">
 #	William Willett, The Waste of Daylight, 19th edition
-#	<http://cs.ucla.edu/~eggert/The-Waste-of-Daylight-19th.pdf>
-#	[PDF] (1914-03)
+#	</a> (1914-03)
 #
 #	Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
 #	<http://www.jstor.org/stable/1774359>.  He writes:
@@ -61,7 +58,10 @@
 #        1:00       CET CEST CEMT Central Europe
 #        1:00:14    SET           Swedish (1879-1899)*
 #        2:00       EET EEST      Eastern Europe
-#        3:00       MSK MSD  MSM* Moscow
+#        3:00       MSK MSD       Moscow
+#
+# A reliable and entertaining source about time zones, especially in Britain,
+# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
 
 # From Peter Ilieve (1994-12-04),
 # The original six [EU members]: Belgium, France, (West) Germany, Italy,
@@ -558,11 +558,11 @@ 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	1918	only	-	Sep	16	 1:00	1:00	MST
 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	-	Aug	16	 0:00	0	MSK
-Rule	Russia	1921	only	-	Feb	14	23:00	1:00	MSD
-Rule	Russia	1921	only	-	Mar	20	23:00	2:00	MSM # Midsummer
-Rule	Russia	1921	only	-	Sep	 1	 0:00	1:00	MSD
+Rule	Russia	1919	only	-	Jul	 1	 2:00	1:00	S
+Rule	Russia	1919	only	-	Aug	16	 0:00	0	-
+Rule	Russia	1921	only	-	Feb	14	23:00	1:00	S
+Rule	Russia	1921	only	-	Mar	20	23:00	2:00	M # Midsummer
+Rule	Russia	1921	only	-	Sep	 1	 0:00	1:00	S
 Rule	Russia	1921	only	-	Oct	 1	 0:00	0	-
 # 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
@@ -2217,7 +2217,6 @@ Zone Europe/Kaliningrad	 1:22:00 -	LMT	1893 Apr
 Zone Europe/Moscow	 2:30:20 -	LMT	1880
 			 2:30	-	MMT	1916 Jul  3 # Moscow Mean Time
 			 2:30:48 Russia	%s	1919 Jul  1 2:00
-			 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
@@ -2376,7 +2375,7 @@ Zone Asia/Yakutsk	 8:38:40 -	LMT	1919 Dec 15
 Zone Asia/Vladivostok	 8:47:44 -	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
+			 9:00	Russia	VLA%sST	1992 Jan 19 2:00s
 			10:00	Russia	VLA%sT	2011 Mar 27 2:00s
 			11:00	-	VLAT
 
diff --git a/contrib/tzdata/factory b/contrib/tzdata/factory
index d29a585..a171497 100644
--- a/contrib/tzdata/factory
+++ b/contrib/tzdata/factory
@@ -7,4 +7,4 @@
 # Also useful for the "comp.sources" version.
 
 # Zone	NAME	GMTOFF	RULES	FORMAT
-Zone	Factory	0	- "Local time zone must be set--see zic manual page"
+Zone	Factory	0	- "Local time zone must be set--use tzsetup"
diff --git a/contrib/tzdata/leapseconds b/contrib/tzdata/leapseconds
index 0a48dac..5b5c70e 100644
--- a/contrib/tzdata/leapseconds
+++ b/contrib/tzdata/leapseconds
@@ -1,20 +1,14 @@
-# Allowance for leapseconds added to each timezone file.
-
-# This file is in the public domain.
+# <pre>
+# This file is in the public domain, so clarified as of
+# 2009-05-17 by Arthur David Olson.
 
-# 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.
-# For more about leap-seconds.list, please see
-# The NTP Timescale and Leap Seconds
-# <http://www.eecis.udel.edu/~mills/leap.html>.
+# Allowance for leapseconds added to each timezone file.
 
 # The International Earth Rotation 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 <http://dx.doi.org/10.1109/5.84965>.
+# Proc IEEE 79, 7 (July 1991), 894-905.
 # 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.
@@ -25,8 +19,8 @@
 # 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
@@ -54,3 +48,53 @@ 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
+
+# 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
diff --git a/contrib/tzdata/northamerica b/contrib/tzdata/northamerica
index 9660a46..d51a7e1 100644
--- a/contrib/tzdata/northamerica
+++ b/contrib/tzdata/northamerica
@@ -1019,9 +1019,9 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 #	Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
 #	which I found in the UCLA library.
 #
+#	<a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf">
 #	William Willett, The Waste of Daylight, 19th edition
-#	<http://cs.ucla.edu/~eggert/The-Waste-of-Daylight-19th.pdf>
-#	[PDF] (1914-03)
+#	</a> (1914-03)
 #
 #	Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
 #	<http://www.jstor.org/stable/1774359>.
diff --git a/contrib/tzdata/zone.tab b/contrib/tzdata/zone.tab
index 923d6ac..1354794 100644
--- a/contrib/tzdata/zone.tab
+++ b/contrib/tzdata/zone.tab
@@ -10,7 +10,8 @@
 # zone where civil clocks have agreed since 1970.  The columns of the
 # table are as follows:
 #
-# 1.  ISO 3166 2-character country code.  See the file 'iso3166.tab'.
+# 1.  ISO 3166 2-character country code.
+#     See the file '/usr/share/misc/iso3166.tab'.
 # 2.  Latitude and longitude of the area's principal location
 #     in ISO 6709 sign-degrees-minutes-seconds format,
 #     either +-DDMM+-DDDMM or +-DDMMSS+-DDDMMSS,