1- # @(#)northamerica 7.56
1+ # @(#)northamerica 7.58
22# also includes Central America and the Caribbean
33
44# This data is by no means authoritative; if you think you know better,
@@ -280,40 +280,47 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:00
280280# Alaska
281281# AK%sT is the modern abbreviation for -9:00 per USNO.
282282#
283- # From Paul Eggert (1995-12-19 ):
283+ # From Paul Eggert (2001-04-01 ):
284284# Howse writes that Alaska switched from the Julian to the Gregorian calendar,
285285# and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
286- # This was on 1867-10-18. We omit this transition, since we can't represent
287- # changes from Julian to Gregorian.
286+ # This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
287+ # also a Friday. Include only the time zone part of this transition,
288+ # ignoring the switch from Julian to Gregorian, since we can't represent
289+ # the Julian calendar.
288290#
289291# Zone NAME GMTOFF RULES FORMAT [UNTIL]
290- Zone America/Juneau -8:57:41 - LMT 1900 Aug 20 12:00
292+ Zone America/Juneau 15:02:19 - LMT 1867 Oct 18
293+ -8:57:41 - LMT 1900 Aug 20 12:00
291294 -8:00 - PST 1942
292295 -8:00 US P%sT 1946
293296 -8:00 - PST 1969
294297 -8:00 US P%sT 1983 Oct 30 2:00
295298 -9:00 US AK%sT
296- Zone America/Yakutat -9:18:55 - LMT 1900 Aug 20 12:00
299+ Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
300+ -9:18:55 - LMT 1900 Aug 20 12:00
297301 -9:00 - YST 1942
298302 -9:00 US Y%sT 1946
299303 -9:00 - YST 1969
300304 -9:00 US Y%sT 1983 Oct 30 2:00
301305 -9:00 US AK%sT
302- Zone America/Anchorage -9:59:36 - LMT 1900 Aug 20 12:00
306+ Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
307+ -9:59:36 - LMT 1900 Aug 20 12:00
303308 -10:00 - CAT 1942
304309 -10:00 US CAT/CAWT 1946
305310 -10:00 - CAT 1967 Apr
306311 -10:00 - AHST 1969
307312 -10:00 US AH%sT 1983 Oct 30 2:00
308313 -9:00 US AK%sT
309- Zone America/Nome -11:01:38 - LMT 1900 Aug 20 12:00
314+ Zone America/Nome 12:58:21 - LMT 1867 Oct 18
315+ -11:01:38 - LMT 1900 Aug 20 12:00
310316 -11:00 - NST 1942
311317 -11:00 US N%sT 1946
312318 -11:00 - NST 1967 Apr
313319 -11:00 - BST 1969
314320 -11:00 US B%sT 1983 Oct 30 2:00
315321 -9:00 US AK%sT
316- Zone America/Adak -11:46:38 - LMT 1900 Aug 20 12:00
322+ Zone America/Adak 12:13:21 - LMT 1867 Oct 18
323+ -11:46:38 - LMT 1900 Aug 20 12:00
317324 -11:00 - NST 1942
318325 -11:00 US N%sT 1946
319326 -11:00 - NST 1967 Apr
@@ -1138,6 +1145,16 @@ Zone America/Dawson_Creek -8:00:56 - LMT 1884
11381145# From Paul Eggert (2000-12-04):
11391146# Let's just keep track of the official times for now.
11401147
1148+ # From Rives McDow (2001-03-07):
1149+ # The premier of Nunavut has issued a ministerial statement advising
1150+ # that effective 2001-04-01, the territory of Nunavut will revert
1151+ # back to three time zones (mountain, central, and eastern). Of the
1152+ # cities in Nunavut, Coral Harbor is the only one that I know of that
1153+ # has said it will not observe dst, staying on EST year round. I'm
1154+ # checking for more info, and will get back to you if I come up with
1155+ # more.
1156+ # [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).]
1157+
11411158# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
11421159Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
11431160Rule NT_YK 1918 only - Oct 27 2:00 0 S
@@ -1155,19 +1172,21 @@ Zone America/Pangnirtung -4:22:56 - LMT 1884
11551172 -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00
11561173 -5:00 Canada E%sT 1999 Oct 31 2:00
11571174 -6:00 Canada C%sT 2000 Oct 29 2:00
1158- -5:00 - EST
1175+ -5:00 Canada E%sT
11591176Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay before 1987
11601177 -5:00 NT_YK E%sT 1999 Oct 31 2:00
11611178 -6:00 Canada C%sT 2000 Oct 29 2:00
1162- -5:00 - EST
1179+ -5:00 Canada E%sT
11631180Zone America/Rankin_Inlet -6:08:40 - LMT 1884
11641181 -6:00 NT_YK C%sT 2000 Oct 29 2:00
1165- -5:00 - EST
1182+ -5:00 - EST 2001 Apr 1 3:00
1183+ -6:00 Canada C%sT
11661184Zone America/Cambridge_Bay -7:00:20 - LMT 1884
11671185 -7:00 NT_YK M%sT 1999 Oct 31 2:00
11681186 -6:00 Canada C%sT 2000 Oct 29 2:00
11691187 -5:00 - EST 2000 Nov 5 0:00
1170- -6:00 Canada C%sT
1188+ -6:00 - CST 2001 Apr 1 3:00
1189+ -7:00 Canada M%sT
11711190Zone America/Yellowknife -7:37:24 - LMT 1884
11721191 -7:00 NT_YK M%sT
11731192Zone America/Inuvik -8:54:00 - LMT 1884
@@ -1294,16 +1313,25 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
12941313# James F. Smith writes in today's LA Times
12951314# </a>
12961315# * Sonora will continue to observe standard time.
1297- # * Border states including Baja California, Chihuahua, and Nuevo Leon
1298- # will use US rules,
12991316# * Last week Mexico City's mayor Andres Manuel Lopez Obrador decreed that
13001317# the Federal District will not adopt DST.
13011318# * 4 of 16 district leaders announced they'll ignore the decree.
13021319# * The decree does not affect federal-controlled facilities including
13031320# the airport, banks, hospitals, and schools.
13041321#
1305- # For now we'll assume that the Federal District will bow to federal rules
1306- # and that border states and Durango will stick with US rules.
1322+ # For now we'll assume that the Federal District will bow to federal rules.
1323+
1324+ # From Jesper Norgaard (2001-04-01):
1325+ # I found some references to the Mexican application of daylight
1326+ # saving, which modifies what I had already sent you, stating earlier
1327+ # that a number of northern Mexican states would go on daylight
1328+ # saving. The modification reverts this to only cover Baja California
1329+ # (Norte), while all other states (except Sonora, who has no daylight
1330+ # saving all year) will follow the original decree of president
1331+ # Vicente Fox, starting daylight saving May 6, 2001 and ending
1332+ # September 30, 2001.
1333+ # References: "Diario de Monterrey" <www.diariodemonterrey.com/index.asp>
1334+ # Palabra <http://palabra.infosel.com/010331/primera/ppri3101.pdf> (2001-03-31)
13071335
13081336# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
13091337Rule Mexico 1939 only - Feb 5 0:00 1:00 D
@@ -1333,8 +1361,7 @@ Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32
13331361Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44
13341362 -6:00 - CST 1988
13351363 -6:00 US C%sT 1989
1336- -6:00 Mexico C%sT 2001
1337- -6:00 US C%sT
1364+ -6:00 Mexico C%sT
13381365# Central Mexico
13391366Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24
13401367 -7:00 - MST 1927 Jun 10 23:00
@@ -1353,8 +1380,7 @@ Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40
13531380 -6:00 - CST 1996
13541381 -6:00 Mexico C%sT 1998
13551382 -6:00 - CST 1998 Apr Sun>=1 3:00
1356- -7:00 Mexico M%sT 2001
1357- -7:00 US M%sT
1383+ -7:00 Mexico M%sT
13581384# Sonora
13591385Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08
13601386 -7:00 - MST 1927 Jun 10 23:00
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