diff options
Diffstat (limited to 'contrib/tzdata/northamerica')
| -rw-r--r-- | contrib/tzdata/northamerica | 404 |
1 files changed, 203 insertions, 201 deletions
diff --git a/contrib/tzdata/northamerica b/contrib/tzdata/northamerica index 7074d31..07f527fe 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 @@ -59,8 +60,8 @@ # # 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 +80,8 @@ # 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. @@ -268,7 +269,7 @@ 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 +277,12 @@ 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 @@ -323,15 +330,15 @@ 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 +347,8 @@ 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 +365,8 @@ 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 @@ -475,9 +482,9 @@ Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 -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 +492,7 @@ 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 @@ -493,7 +500,7 @@ 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 US P%sT 1983 Oct 30 2:00 -8:00 - PST Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 -9:18:55 - LMT 1900 Aug 20 12:00 @@ -509,7 +516,7 @@ 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 +525,7 @@ 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 @@ -527,7 +534,7 @@ 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 # The following switches don't quite make our 1970 cutoff. @@ -545,7 +552,7 @@ 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 +585,7 @@ 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 +595,14 @@ 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 +628,11 @@ 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 +656,15 @@ 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 +690,6 @@ 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 +711,13 @@ 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 +733,10 @@ 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 +757,11 @@ 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 +778,10 @@ 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 +794,11 @@ 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 +816,10 @@ 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 +832,17 @@ 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 +863,16 @@ 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 +891,7 @@ 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 +917,7 @@ 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 +955,12 @@ 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 +973,8 @@ 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 @@ -1050,7 +1054,7 @@ 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 +1101,16 @@ 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): @@ -1220,7 +1223,7 @@ 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 @@ -1281,7 +1284,7 @@ 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 @@ -1361,18 +1364,10 @@ 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 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 @@ -1386,7 +1381,7 @@ Zone America/Blanc-Sablon -3:48:28 - LMT 1884 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 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 @@ -1419,7 +1414,7 @@ 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 +1504,26 @@ 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 +1592,7 @@ 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 +1605,16 @@ 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 +1750,12 @@ 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 @@ -1818,16 +1813,16 @@ 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: @@ -1867,7 +1862,7 @@ 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/Creston -7:46:04 - LMT 1884 -7:00 - MST 1916 Oct 1 @@ -1895,7 +1890,7 @@ Zone America/Creston -7:46:04 - LMT 1884 # 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 +1898,7 @@ 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 +1927,8 @@ 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 +1975,7 @@ 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 +1984,11 @@ 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 @@ -2081,47 +2075,47 @@ 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 + -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 + -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 + -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 + -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 + -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? -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 + -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 1966 Jul 1 2:00 -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 @@ -2134,7 +2128,7 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # 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.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/ # # Here are the discrepancies between Shanks & Pottenger (S&P) and the MLoC. # (In all cases we go with the MLoC.) @@ -2179,8 +2173,8 @@ 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 +2199,7 @@ 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 +2213,13 @@ 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 @@ -2341,17 +2335,17 @@ Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44 -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 +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 +2353,7 @@ 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 +2365,7 @@ 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 @@ -2435,7 +2429,7 @@ 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) @@ -2531,8 +2525,8 @@ 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 @@ -2562,15 +2556,15 @@ 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 +Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown + -5:07:11 - KMT 1912 Feb # Kingston Mean Time -5:00 - EST # Costa Rica @@ -2587,7 +2581,7 @@ 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 +2825,8 @@ 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 +2837,7 @@ 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 +2858,7 @@ 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 @@ -2967,8 +2961,8 @@ 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 +2989,28 @@ 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 +3039,7 @@ 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 +3077,7 @@ 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 +3086,13 @@ 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 # 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 +3104,7 @@ 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 +3115,7 @@ 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 +3128,17 @@ 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 UTC-4 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 on 2014-11-02 at 02:00. # -# 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 2014 Nov 2 2:00 + -4:00 - AST # British Virgin Is # Virgin Is |
