Branch: Tag:

2003-03-30

2003-03-30 13:16:00 by Mirar (Pontus Hagland) <pike@sort.mirar.org>

new tzdata

Rev: lib/modules/Calendar.pmod/tzdata/africa:1.3
Rev: lib/modules/Calendar.pmod/tzdata/antarctica:1.2
Rev: lib/modules/Calendar.pmod/tzdata/asia:1.5
Rev: lib/modules/Calendar.pmod/tzdata/australasia:1.5
Rev: lib/modules/Calendar.pmod/tzdata/backward:1.4
Rev: lib/modules/Calendar.pmod/tzdata/etcetera:1.2
Rev: lib/modules/Calendar.pmod/tzdata/europe:1.5
Rev: lib/modules/Calendar.pmod/tzdata/iso3166.tab:1.3
Rev: lib/modules/Calendar.pmod/tzdata/leapseconds:1.2
Rev: lib/modules/Calendar.pmod/tzdata/northamerica:1.5
Rev: lib/modules/Calendar.pmod/tzdata/southamerica:1.5
Rev: lib/modules/Calendar.pmod/tzdata/systemv:1.2
Rev: lib/modules/Calendar.pmod/tzdata/zone.tab:1.5

1: - # @(#)northamerica 7.54 + # @(#)northamerica 7.62   # also includes Central America and the Caribbean      # This data is by no means authoritative; if you think you know better,
31:   # Make sure you have the errata sheet; the book is somewhat useless without it.   # It is the source for the US and Puerto Rico entries below.    - # From Paul Eggert (1996-06-12): + # From Paul Eggert (2001-03-06):   # Daylight Saving Time was first suggested as a joke by Benjamin Franklin - # in his whimsical essay ``Turkey vs Eagle, McCauley is my Beagle'' (1784). + # in his whimsical essay ``An Economical Project for Diminishing the Cost + # of Light'' published in the Journal de Paris (1784-04-26).   # Not everyone is happy with the results:   #   # I don't really care how time is reckoned so long as there is some
48:   # them healthy, wealthy and wise in spite of themselves.   #   # -- Robertson Davies, The Diary of Samuel Marchbanks (1947), XIX, Sunday + # + # For more about the first ten years of DST in the United States, see + # Robert Garland's <a href="http://www.clpgh.org/exhibit/dst.html"> + # Ten years of daylight saving from the Pittsburgh standpoint + # (Carnegie Library of Pittsburgh, 1927)</a>. + # + # 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 + # was the first nationwide legal time standard, and apparently + # time was just called "Standard Time" or "Daylight Saving Time".      # From Arthur David Olson:   # US Daylight Saving Time ended on the last Sunday of *October* in 1974.
70:   # From Joseph Gallant <notquite@hotmail.com>, citing   # George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):   # At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set - # to switch to London for Atlee's address, but the American people + # to switch to London for Attlee's address, but the American people   # never got to hear his speech live. According to one press account,   # CBS' Bob Trout was first to announce the word of Japan's surrender,   # but a few seconds later, NBC, ABC and Mutual also flashed the word   # of surrender, all of whom interrupting the bells of Big Ben in - # London which were to precede Mr. Atlee's speech. + # London which were to precede Mr. Attlee's speech.    - # From Paul Eggert (2000-10-02): - # Shanks says that DST was called "War Time" in the US in 1919. - # In the light of the above, this seems suspect; - # but we have no better authority yet. + # From Paul Eggert (2003-02-09): It was Robert St John, not Bob Trout. From + # Myrna Oliver's obituary of St John on page B16 of today's Los Angeles Times: + # + # ... a war-weary U.S. clung to radios, awaiting word of Japan's surrender. + # Any announcement from Asia would reach St. John's New York newsroom on a + # wire service teletype machine, which had prescribed signals for major news. + # Associated Press, for example, would ring five bells before spewing out + # typed copy of an important story, and 10 bells for news "of transcendental + # importance." + # + # On Aug. 14, stalling while talking steadily into the NBC networks' open + # microphone, St. John heard five bells and waited only to hear a sixth bell, + # before announcing confidently: "Ladies and gentlemen, World War II is over. + # The Japanese have agreed to our surrender terms." + # + # He had scored a 20-second scoop on other broadcasters.    -  +    # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - Rule US 1918 1919 - Mar lastSun 2:00 1:00 W # War + 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
174:   # From Paul Eggert (1995-12-19):   # Shanks uses 1983-10-30, not 1983-11-30, for the 1983 transitions.   # Go with Shanks. + # + # 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".    - # US Eastern time, represented by New York +     -  + # US eastern time, represented by New York +    # Connecticut, Delaware, District of Columbia, most of Florida, - # Georgia, far southeastern Indiana, eastern Kentucky, Maine, - # Maryland, Massachusetts, New Hampshire, New Jersey, New York, North - # Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, eastern - # Tennessee, Vermont, Virginia, West Virginia + # Georgia, southeast Indiana (Clark, Dearborn, Floyd, Harrison, and + # Ohio counties), eastern Kentucky, Maine, Maryland, Massachusetts, + # New Hampshire, New Jersey, New York, North Carolina, Ohio, + # Pennsylvania, Rhode Island, South Carolina, eastern Tennessee, + # Vermont, Virginia, West Virginia      # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER   Rule NYC 1920 only - Mar lastSun 2:00 1:00 D
197:    -5:00 NYC E%sT 1967    -5:00 US E%sT    - # US Central time, represented by Chicago + # US central time, represented by Chicago      # Alabama, Arkansas, Florida panhandle, Illinois, western Indiana - # corners, Iowa, most of Kansas, western Kentucky, Louisiana, - # Minnesota, Mississippi, Missouri, eastern Nebraska, eastern North - # Dakota, Oklahoma, eastern South Dakota, western Tennessee, most of - # Texas, Wisconsin + # (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer, + # Vanderburgh, and Warrick counties), Iowa, most of Kansas, western + # Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern + # Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota, + # western Tennessee, most of Texas, Wisconsin      # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER   Rule Chicago 1920 only - Jun 13 2:00 1:00 D
221:    -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 12:00 +  -7:00 US M%sT 1992 Oct 25 02:00 +  -6:00 US C%sT    - # US Mountain time, represented by Denver + # US mountain time, represented by Denver   #   # Colorado, southern Idaho, far western Kansas, Montana, western - # Nebraska, New Mexico, southwestern North Dakota, far eastern Oregon, - # western South Dakota, far western Texas, Utah, Wyoming + # Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City), + # New Mexico, southwestern North Dakota, far eastern Oregon, + # western South Dakota, far western Texas (El Paso County, Hudspeth County, + # and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming   #   # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER   Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
244:      # US Pacific time, represented by Los Angeles   # - # California, northern Idaho, Nevada, most of Oregon, and Washington + # California, northern Idaho, most of Nevada, most of Oregon, and Washington   #   # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER   Rule CA 1948 only - Mar 14 2:00 1:00 D
261:   # Alaska   # AK%sT is the modern abbreviation for -9:00 per USNO.   # - # From Paul Eggert (1995-12-19): + # From Paul Eggert (2001-05-30):   # Howse writes that Alaska switched from the Julian to the Gregorian calendar,   # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia. - # This was on 1867-10-18. We omit this transition, since we can't represent - # changes from Julian to Gregorian. + # This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian, + # also a Friday. Include only the time zone part of this transition, + # ignoring the switch from Julian to Gregorian, since we can't represent + # the Julian calendar.   # -  + # As far as we know, none of the exact locations mentioned below were + # permanently inhabited in 1867 by anyone using either calendar. + # (Yakutat was colonized by the Russians in 1799, but the settlement + # was destroyed in 1805 by a Yakutat-kon war party.) However, there + # were nearby inhabitants in some cases and for our purposes perhaps + # it's best to simply use the official transition. + #   # Zone NAME GMTOFF RULES FORMAT [UNTIL] - Zone America/Juneau -8:57:41 - LMT 1900 Aug 20 12:00 + 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 1983 Oct 30 2:00    -9:00 US AK%sT - Zone America/Yakutat -9:18:55 - LMT 1900 Aug 20 12:00 + Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 +  -9:18:55 - LMT 1900 Aug 20 12:00    -9:00 - YST 1942    -9:00 US Y%sT 1946    -9:00 - YST 1969    -9:00 US Y%sT 1983 Oct 30 2:00    -9:00 US AK%sT - Zone America/Anchorage -9:59:36 - LMT 1900 Aug 20 12:00 + Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18 +  -9:59:36 - LMT 1900 Aug 20 12:00    -10:00 - CAT 1942    -10:00 US CAT/CAWT 1946    -10:00 - CAT 1967 Apr    -10:00 - AHST 1969    -10:00 US AH%sT 1983 Oct 30 2:00    -9:00 US AK%sT - Zone America/Nome -11:01:38 - LMT 1900 Aug 20 12:00 + Zone America/Nome 12:58:21 - LMT 1867 Oct 18 +  -11:01:38 - LMT 1900 Aug 20 12:00    -11:00 - NST 1942    -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    -9:00 US AK%sT - Zone America/Adak -11:46:38 - LMT 1900 Aug 20 12:00 + Zone America/Adak 12:13:21 - LMT 1867 Oct 18 +  -11:46:38 - LMT 1900 Aug 20 12:00    -11:00 - NST 1942    -11:00 US N%sT 1946    -11:00 - NST 1967 Apr
326:   # Now we turn to US areas that have diverged from the consensus since 1970.      # Arizona mostly uses MST. +  + # From Paul Eggert (2002-10-20): + # + # The information in the rest of this paragraph is derived from the + # <a href="http://www.dlapr.lib.az.us/links/daylight.htm"> + # Daylight Saving Time web page (2002-01-23)</a> maintained by the + # Arizona State Library, Archives and Public Records. + # Between 1944-01-01 and 1944-04-01 the State of Arizona used standard + # time, but by federal law railroads, airlines, bus lines, military + # personnel, and some engaged in interstate commerce continued to + # observe war (i.e., daylight saving) time. The 1944-03-17 Phoenix + # Gazette says that was the date the law changed, and that 04-01 was + # the date the state's clocks would change. In 1945 the State of + # Arizona used standard time all year, again with exceptions only as + # mandated by federal law. Arizona observed DST in 1967, but Arizona + # Laws 1968, ch. 183 (effective 1968-03-21) repealed DST. + # + # Shanks says the 1944 experiment came to an end on 1944-03-17. + # Go with the Arizona State Library instead. +    Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 12:00    -7:00 US M%sT 1944 Jan 1 00:01 -  -7:00 - MST 1944 Mar 17 00:01 +  -7:00 - MST 1944 Apr 1 00:01    -7:00 US M%sT 1944 Oct 1 00:01    -7:00 - MST 1967 -  -7:00 US M%sT 1968 +  -7:00 US M%sT 1968 Mar 21    -7:00 - MST   # From Arthur David Olson (1988-02-13):   # A writer from the Inter Tribal Council of Arizona, Inc.,
376:   # So we reluctantly put them all in a subdirectory `America/Indiana'.   #   # Most of EST-only Indiana last observed DST in 1970. +  + # From Paul Eggert (2001-03-06), following a tip by Markus Kuhn: + # Pam Belluck reported in the New York Times (2001-01-31) that the + # Indiana Legislature is considering a bill to adopt DST statewide. + # Her article mentioned Vevay, whose post office observes a different + # time zone from Danner's Hardware across the street. +    # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER   Rule Indianapolis 1941 only - Jun 22 2:00 1:00 D   Rule Indianapolis 1941 1954 - Sep lastSun 2:00 0 S
478:   # Wayne County (central Kentucky) is switching from Central (-0600) to Eastern   # (-0500) time. They won't "fall back" this year. See Sara Shipley,   # The difference an hour makes, Nando Times (2000-08-29 15:33 -0400). + # + # From Paul Eggert (2001-07-16): + # The final rule was published in the + # <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22"> + # Federal Register 65, 160 (2000-08-17), page 50154-50158. + # </a> + #   Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:00    -6:00 US C%sT 1946    -6:00 - CST 1968
493:   # Oliver County, ND (from MST to CST) ... 1992-10   # West Wendover, NV (from PST TO MST) ... 1999-10   # Wayne County, KY (from CST to EST) ... 2000-10 - # There is another change in the offing; Mercer County, ND is looking - # to change from MT to CT. It is possible that two other ND counties - # (Sioux and Morton) will look to change also. If made, the earliest - # a change would be effective is October 2001. +    # - # From Paul Eggert (2000-10-02): - # FIXME: I haven't yet had time to incorporate all the above changes. + # From Paul Eggert (2001-07-17): + # We don't know where the line used to be within Kearny County, KS, + # so omit that change for now. + # See America/Indiana/Knox for the Starke County, IN change. + # See America/North_Dakota/Center for the Oliver County, ND change. + # West Wendover, NV officially switched from Pacific to mountain time on + # 1999-10-31. See the + # <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15"> + # Federal Register 64, 203 (1999-10-21), page 56705-56707. + # </a> + # 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.      # Michigan   #
521:   #   # This story is too entertaining to be false, so go with Howse over Shanks.   # + # From Paul Eggert (2001-03-06): + # Garland (1927) writes ``Cleveland and Detroit advanced their clocks + # one hour in 1914.'' This change is not in Shanks. We have no more + # info, so omit this for now. + #   # Most of Michigan observed DST from 1973 on, but was a bit late in 1975.   # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER   Rule Detroit 1948 only - Apr lastSun 2:00 1:00 D
551:    -6:00 US C%sT      # Navassa + # administered by the US Fish and Wildlife Service   # claimed by US under the provisions of the 1856 Guano Islands Act   # also claimed by Haiti   # occupied 1857/1900 by the Navassa Phosphate Co - # US lighthouse 1917/1997-01 + # US lighthouse 1917/1996-09   # currently uninhabited   # see Mark Fineman, ``An Isle Rich in Guano and Discord'',   # _Los Angeles Times_ (1998-11-10), A1, A10; it cites
579:   # Thomas G. Shanks, The International Atlas (5th edition),   # San Diego: ACS Publications, Inc. (1999).   # - # Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source + # 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
646:   # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   Rule Canada 1918 only - Apr 14 2:00 1:00 D   Rule Canada 1918 only - Oct 31 2:00 0 S - Rule Canada 1942 only - Feb 9 2:00 1:00 D + Rule Canada 1942 only - Feb 9 2:00 1:00 W   Rule Canada 1945 only - Sep 30 2:00 0 S   Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D   Rule Canada 1974 max - Oct lastSun 2:00 0 S
675:   Rule StJohns 1936 1941 - May Sun>=8 0:00 1:00 D   Rule StJohns 1936 1941 - Oct Sun>=1 0:00 0 S   # Shanks gives 1942 May 11 - 1945 Sep 30; go with Whitman. - Rule StJohns 1942 only - Mar 1 0:00 1:00 D + Rule StJohns 1942 only - Mar 1 0:00 1:00 W   Rule StJohns 1942 only - Dec 31 0:00 0 S - Rule StJohns 1943 only - May 30 0:00 1:00 D + Rule StJohns 1943 only - May 30 0:00 1:00 W   Rule StJohns 1943 only - Sep 5 0:00 0 S - Rule StJohns 1944 only - Jul 10 0:00 1:00 D + Rule StJohns 1944 only - Jul 10 0:00 1:00 W   Rule StJohns 1944 only - Sep 2 0:00 0 S - Rule StJohns 1945 only - Jan 1 0:00 1:00 D + Rule StJohns 1945 only - Jan 1 0:00 1:00 W   Rule StJohns 1945 only - Oct 7 2:00 0 S   # For 1946-9 Whitman gives May 5,4,9,1 - Oct 1,5,3,2, and for 1950 he gives   # Apr 30 - Sep 24; go with Shanks.
765:   Rule Halifax 1937 1941 - Sep Mon>=24 0:00 0 S   Rule Halifax 1939 only - May 28 0:00 1:00 D   Rule Halifax 1940 1941 - May Sun>=1 0:00 1:00 D - Rule Halifax 1942 only - Feb 9 2:00 1:00 D + Rule Halifax 1942 only - Feb 9 2:00 1:00 W   Rule Halifax 1945 1959 - Sep lastSun 2:00 0 S   Rule Halifax 1946 1959 - Apr lastSun 2:00 1:00 D   Rule Halifax 1962 1986 - Apr lastSun 2:00 1:00 D
867:   Rule Winn 1918 only - Oct 31 2:00 0 S   Rule Winn 1937 only - May 16 2:00 1:00 D   Rule Winn 1937 only - Sep 26 2:00 0 S - Rule Winn 1942 only - Feb 9 2:00 1:00 D + Rule Winn 1942 only - Feb 9 2:00 1:00 W   Rule Winn 1945 only - Sep lastSun 2:00 0 S   Rule Winn 1946 only - May 12 2:00 1:00 D   Rule Winn 1946 only - Oct 13 2:00 0 S
937:   Rule Regina 1937 only - Oct Sun>=8 0:00 0 S   Rule Regina 1938 only - Oct Sun>=1 0:00 0 S   Rule Regina 1939 1941 - Oct Sun>=8 0:00 0 S - Rule Regina 1942 only - Feb 9 2:00 1:00 D + Rule Regina 1942 only - Feb 9 2:00 1:00 W   Rule Regina 1945 only - Sep lastSun 2:00 0 S   Rule Regina 1946 only - Apr Sun>=8 2:00 1:00 D   Rule Regina 1946 only - Oct Sun>=8 2:00 0 S
970:   Rule Edm 1920 1923 - Apr lastSun 2:00 1:00 D   Rule Edm 1920 only - Oct lastSun 2:00 0 S   Rule Edm 1921 1923 - Sep lastSun 2:00 0 S - Rule Edm 1942 only - Feb 9 2:00 1:00 D + Rule Edm 1942 only - Feb 9 2:00 1:00 W   Rule Edm 1945 only - Sep lastSun 2:00 0 S   Rule Edm 1947 only - Apr lastSun 2:00 1:00 D   Rule Edm 1947 only - Sep lastSun 2:00 0 S
996:   # 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 31 2:00 0 S - Rule Vanc 1942 only - Feb 9 2:00 1:00 D + Rule Vanc 1942 only - Feb 9 2:00 1:00 W   Rule Vanc 1945 only - Sep 30 2:00 0 S   Rule Vanc 1946 1986 - Apr lastSun 2:00 1:00 D   Rule Vanc 1946 only - Oct 13 2:00 0 S
1038:   # From Paul Eggert (1999-09-20):   # <a href="http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html">   # Basic Facts: The New Territory - # </a> (1999) reports that Pangnirtung operates on Eastern time, + # </a> (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. + # Pangnirtung switched to eastern time; we'll guess 1995.   # We'll ignore the claim about Coral Harbour for now,   # since we have no further info.   
1100:   # central time, while Kugluktuk, even farther west, reverted to   # mountain time, which they had used before the advent of Nunavut's   # unified time zone in 1999. + # + # From Rives McDow (2001-01-20), quoting the Nunavut government: + # The preceding decision came into effect at midnight, Saturday Nov 4, 2000.      # From Paul Eggert (2000-12-04):   # Let's just keep track of the official times for now.    -  + # From Rives McDow (2001-03-07): + # The premier of Nunavut has issued a ministerial statement advising + # that effective 2001-04-01, the territory of Nunavut will revert + # back to three time zones (mountain, central, and eastern). Of the + # cities in Nunavut, Coral Harbor is the only one that I know of that + # has said it will not observe dst, staying on EST year round. I'm + # checking for more info, and will get back to you if I come up with + # more. + # [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).] +    # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   Rule NT_YK 1918 only - Apr 14 2:00 1:00 D   Rule NT_YK 1918 only - Oct 27 2:00 0 S   Rule NT_YK 1919 only - May 25 2:00 1:00 D   Rule NT_YK 1919 only - Nov 1 0:00 0 S - Rule NT_YK 1942 only - Feb 9 2:00 1:00 D + Rule NT_YK 1942 only - Feb 9 2:00 1:00 W   Rule NT_YK 1945 only - Sep 30 2:00 0 S   Rule NT_YK 1965 only - Apr lastSun 0:00 2:00 DD   Rule NT_YK 1965 only - Oct lastSun 2:00 0 S
1121:    -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 - EST +  -5:00 Canada E%sT   Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay before 1987    -5:00 NT_YK E%sT 1999 Oct 31 2:00    -6:00 Canada C%sT 2000 Oct 29 2:00 -  -5:00 - EST +  -5:00 Canada E%sT   Zone America/Rankin_Inlet -6:08:40 - LMT 1884    -6:00 NT_YK C%sT 2000 Oct 29 2:00 -  -5:00 - EST +  -5:00 - EST 2001 Apr 1 3:00 +  -6:00 Canada C%sT   Zone America/Cambridge_Bay -7:00:20 - LMT 1884    -7:00 NT_YK M%sT 1999 Oct 31 2:00 -  -6:00 Canada C%sT +  -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 -7:37:24 - LMT 1884    -7:00 NT_YK M%sT   Zone America/Inuvik -8:54:00 - LMT 1884
1149:      # Mexico    - # Gwillim Law reports this source for daylight saving time in Mexico: - # <a href="http://www.spin.com.mx/verano/"> - # Daylight saving time * SPIN-Internet (in Spanish) - # </a> - # Law (2000-03-09) translates it as follows: + # From Paul Eggert (2001-03-05): + # The Investigation and Analysis Service of the + # Mexican Library of Congress (MLoC) has published a + # <a href="http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/"> + # history of Mexican local time (in Spanish) + # </a>.   # - # Standard time effective in Mexico takes its origin in the - # presidential decree of April 24, 1942. The time of the 120th - # meridian applies to the state of Baja California; of the 105th - # meridian to the states of Baja California Sur, Sonora, Sinaloa, and - # Nayarit; and the time of the 90th meridian to the rest of the - # country. - # - # In the country, there have been several attempts made to adapt - # standard time with the object of arriving at a better use of - # daylight for social and economic activities. In December, 1981 a - # permanent time zone was decreed for the states of Campeche, Yucatan, - # and Quintana Roo, displacing them from the 90th to the 75th - # meridian. This disposition was annulled on December 2, 1982. - # - # In 1988 a Summer Time was established for the states of Tamaulipas, - # Nuevo Leon, Coahuila, and Durango, which meant that from the first - # Sunday in April to the last [Sunday] of October those states - # displaced their time from the 90th to the 75th meridian. That - # disposition lasted for one year. + # Here are the discrepancies between Shanks and the MLoC. + # (In all cases we go with the MLoC.) + # Shanks reports that Baja was at -8:00 in 1922/1923. + # Shanks says the 1930 transition in Baja was 1930-11-16. + # Shanks reports no DST during summer 1931. + # Shanks reports a transition at 1032-03-30 23:00, not 1932-04-01. + # Shanks does not report transitions for Baja in 1945 or 1948. + # Shanks reports southern Mexico transitions on 1981-12-01, not 12-23. + # Shanks says Quintana Roo switched to -6:00 on 1982-12-02, and to -5:00 + # on 1997-10-26 at 02:00.    -  + # From Gwillim Law (2001-02-20): + # There are some other discrepancies between the Decrees page and the + # tz database. I think they can best be explained by supposing that + # the researchers who prepared the Decrees page failed to find some of + # the relevant documents. +    # From Paul Eggert (2000-07-26):   # Shanks gives 1942-04-01 instead of 1942-04-24, and omits the 1981   # and 1988 DST experiments. Go with spin.com.mx.
1223:   # savings time so as to stay on the same time zone as the southern part of   # Arizona year round.    - # From Jesper Norgaard (2000-12-02): - # No changes have been implemented yet, but the new elected president - # Vicente Fox seems to agree with his presidential candidate opponent - # Labastida that daylight saving should not be discontinued, but maybe - # reduced with a couple of months, e.g. starting one month later and - # ending one month earlier: - # http://www.reforma.com/nacional/articulo/044581/ + # From Jesper Norgaard, translating + # <http://www.reforma.com/nacional/articulo/064327/> (2001-01-17): + # In Oaxaca, the 55.000 teachers from the Section 22 of the National + # Syndicate of Education Workers, refuse to apply daylight saving each + # year, so that the more than 10,000 schools work at normal hour the + # whole year.    -  + # From Gwillim Law (2001-01-19): + # <http://www.reforma.com/negocios_y_dinero/articulo/064481/> ... says + # (translated):... + # 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> + # [translated], says "summer time will ... take effect on the first Sunday + # in May, and end on the last Sunday of September. +  + # From Arthur David Olson (2001-01-25): + # The 2001-01-24 traditional Washington Post contained the page one + # story "Timely Issue Divides Mexicans."... + # http://www.washingtonpost.com/wp-dyn/articles/A37383-2001Jan23.html + # ... Mexico City Mayor Lopez Obrador "...is threatening to keep + # Mexico City and its 20 million residents on a different time than + # the rest of the country..." In particular, Lopez Obrador would abolish + # observation of Daylight Saving Time. +  + # <a href="http://www.conae.gob.mx/ahorro/decretohorver2001.html#decre"> + # Official statute published by the Energy Department + # </a> (2001-02-01) shows Baja and Chihauhua as still using US DST rules, + # and Sonora with no DST. This was reported by Jesper Norgaard (2001-02-03). +  + # From Paul Eggert (2001-03-03): + # + # <a href="http://www.latimes.com/news/nation/20010303/t000018766.html"> + # James F. Smith writes in today's LA Times + # </a> + # * Sonora will continue to observe standard time. + # * Last week Mexico City's mayor Andres Manuel Lopez Obrador decreed that + # the Federal District will not adopt DST. + # * 4 of 16 district leaders announced they'll ignore the decree. + # * The decree does not affect federal-controlled facilities including + # the airport, banks, hospitals, and schools. + # + # For now we'll assume that the Federal District will bow to federal rules. +  + # From Jesper Norgaard (2001-04-01): + # I found some references to the Mexican application of daylight + # saving, which modifies what I had already sent you, stating earlier + # that a number of northern Mexican states would go on daylight + # saving. The modification reverts this to only cover Baja California + # (Norte), while all other states (except Sonora, who has no daylight + # saving all year) will follow the original decree of president + # Vicente Fox, starting daylight saving May 6, 2001 and ending + # September 30, 2001. + # References: "Diario de Monterrey" <www.diariodemonterrey.com/index.asp> + # Palabra <http://palabra.infosel.com/010331/primera/ppri3101.pdf> (2001-03-31) +  + # From Reuters (2001-09-04): + # Mexico's Supreme Court on Tuesday declared that daylight savings was + # unconstitutional in Mexico City, creating the possibility the + # capital will be in a different time zone from the rest of the nation + # next year.... The Supreme Court's ruling takes effect at 2:00 + # a.m. (0800 GMT) on Sept. 30, when Mexico is scheduled to revert to + # standard time. "This is so residents of the Federal District are not + # subject to unexpected time changes," a statement from the court said. +  + # From Jesper Norgaard Welen (2002-03-12): + # ... consulting my local grocery store(!) and my coworkers, they all insisted + # that a new decision had been made to reinstate US style DST in Mexico.... + # http://www.conae.gob.mx/ahorro/horaver2001_m1_2002.html (2002-02-20) + # confirms this. Sonora as usual is the only state where DST is not applied. +    # 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   Rule Mexico 1940 only - Dec 9 0:00 1:00 D   Rule Mexico 1941 only - Apr 1 0:00 0 S - Rule Mexico 1943 only - Dec 16 0:00 1:00 D + Rule Mexico 1943 only - Dec 16 0:00 1:00 W   Rule Mexico 1944 only - May 1 0:00 0 S   Rule Mexico 1950 only - Feb 12 0:00 1:00 D   Rule Mexico 1950 only - Jul 30 0:00 0 S - Rule Mexico 1996 max - Apr Sun>=1 2:00 1:00 D - Rule Mexico 1996 max - Oct lastSun 2:00 0 S - # - Rule BajaN 1954 1961 - Apr lastSun 2:00 1:00 D - Rule BajaN 1954 1961 - Sep lastSun 2:00 0 S + Rule Mexico 1996 2000 - Apr Sun>=1 2:00 1:00 D + Rule Mexico 1996 2000 - Oct lastSun 2:00 0 S + Rule Mexico 2001 only - May Sun>=1 2:00 1:00 D + Rule Mexico 2001 only - Sep lastSun 2:00 0 S + Rule Mexico 2002 max - Apr Sun>=1 2:00 1:00 D + Rule Mexico 2002 max - Oct lastSun 2:00 0 S   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   # Quintana Roo   Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56 -  -6:00 - CST 1981 Dec -  -5:00 - EST 1982 Dec 2 -  -6:00 - CST 1996 -  -6:00 Mexico C%sT 1997 Oct lastSun 2:00 +  -6:00 - CST 1981 Dec 23    -5:00 Mexico E%sT 1998 Aug 2 2:00    -6:00 Mexico C%sT   # Campeche, Yucatan   Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32 -  -6:00 - CST 1981 Dec +  -6:00 - CST 1981 Dec 23    -5:00 - EST 1982 Dec 2    -6:00 Mexico C%sT   # Coahuila, Durango, Nuevo Leon, Tamaulipas - Zone America/Monterrey -6:41:16 - LMT 1922 Jan 1 0:01:32 + 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
1270:    -6:00 - CST 1930 Nov 15    -7:00 - MST 1931 May 1 23:00    -6:00 - CST 1931 Oct -  -7:00 - MST 1932 Mar 30 23:00 +  -7:00 - MST 1932 Apr 1 +  -6:00 Mexico C%sT 2001 Sep 30 02:00 +  -6:00 - CST 2002 Feb 20    -6:00 Mexico C%sT   # Chihuahua   Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40
1278:    -6:00 - CST 1930 Nov 15    -7:00 - MST 1931 May 1 23:00    -6:00 - CST 1931 Oct -  -7:00 - MST 1932 Mar 30 23:00 +  -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
1289:    -6:00 - CST 1930 Nov 15    -7:00 - MST 1931 May 1 23:00    -6:00 - CST 1931 Oct -  -7:00 - MST 1932 Mar 30 23:00 +  -7:00 - MST 1932 Apr 1    -6:00 - CST 1942 Apr 24    -7:00 - MST 1949 Jan 14    -8:00 - PST 1970
1301:    -6:00 - CST 1930 Nov 15    -7:00 - MST 1931 May 1 23:00    -6:00 - CST 1931 Oct -  -7:00 - MST 1932 Mar 30 23:00 +  -7:00 - MST 1932 Apr 1    -6:00 - CST 1942 Apr 24    -7:00 - MST 1949 Jan 14    -8:00 - PST 1970    -7:00 Mexico M%sT   # 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 -  -7:00 - MST 1930 Nov 16 +  -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 -  -7:00 - MST 1949 Jan 14 -  -8:00 BajaN P%sT 1976 +  -8:00 1:00 PWT 1945 Nov 12 +  -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 (2001-03-05): + # Formerly there was an America/Ensenada zone, which differed from + # America/Tijuana only in that it did not observe DST from 1976 + # through 1995. This was as per Shanks. However, Guy Harris reports + # that the 1987 OAG says "Only Ensenada, Mexicale, San Felipe and + # Tijuana observe DST," which contradicts Shanks but does imply that + # DST-observance was a town-by-town matter back then. This concerns + # data after 1970 so most likely there should be at least one Zone + # other than America/Tijuana for Baja, but it's not clear yet what its + # name or contents should be.   #   # Revillagigedo Is   # no information
1554:   # Martinique   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France -  -4:04 - FFMT 1911 May # Fort-de-France MT +  -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
1580:   Rule Nic 1992 only - Sep 24 0:00 0 S   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/Managua -5:45:08 - LMT 1890 -  -5:45 - MMT 1934 Jun 23 # Managua Mean Time +  -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 1993 Jan 1 4:00
1590:   # Panama   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/Panama -5:18:08 - LMT 1890 -  -5:20 - PMT 1908 Apr 22 # Panama Mean Time +  -5:19:36 - CMT 1908 Apr 22 # Colon Mean Time    -5:00 - EST      # Puerto Rico
1609:   # St Lucia   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries -  -4:04 - CMT 1912 # Castries Mean Time +  -4:04:00 - CMT 1912 # Castries Mean Time    -4:00 - AST      # St Pierre and Miquelon