1# @(#)northamerica 7.11
2# also includes Central America and the Caribbean
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert <eggert@twinsun.com> (August 17, 1994):
9# A reliable and entertaining source about time zones is
10# Derek Howse, Greenwich time and the discovery of the longitude,
11# Oxford University Press (1980).
12
13###############################################################################
14
15# United States
16
17# From Arthur David Olson:
18# US Daylight Saving Time ended on the last Sunday of *October* in 1974.
19# See, for example, the front page of the Saturday, October 26, 1974
20# and Sunday, October 27, 1974 editions of the Washington Post.
21
22# From seismo!munnari!kre:
23# I recall also being told by someone once that Canada didn't have
24# the DST variations in 74/75 that the US did, but I am not nearly
25# sure enough of this to add anything.
26
27# From Arthur David Olson:
28# The above has been confirmed by Bob Devine; we'll go with it here.
29
30# From Arthur David Olson:
31# Before the Uniform Time Act of 1966 took effect in 1967, observance of
32# Daylight Saving Time in the US was by local option, except during wartime.
33
34# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
35Rule US 1918 1919 - Mar lastSun 2:00 1:00 D
36Rule US 1918 1919 - Oct lastSun 2:00 0 S
37Rule US 1942 only - Feb 9 2:00 1:00 W # War
38Rule US 1945 only - Sep 30 2:00 0 S
39Rule US 1967 max - Oct lastSun 2:00 0 S
40Rule US 1967 1973 - Apr lastSun 2:00 1:00 D
41Rule US 1974 only - Jan 6 2:00 1:00 D
42Rule US 1975 only - Feb 23 2:00 1:00 D
43Rule US 1976 1986 - Apr lastSun 2:00 1:00 D
44Rule US 1987 max - Apr Sun>=1 2:00 1:00 D
45
46# From Bob Devine (January 28, 1988):
47# ...Alaska (and Hawaii) had the timezone names changed in 1967.
48# old new
49# Pacific Standard Time(PST) -same-
50# Yukon Standard Time(YST) -same-
51# Central Alaska S.T. (CAT) Alaska-Hawaii St[an]dard Time (AHST)
52# Nome Standard Time (NT) Bering Standard Time (BST)
53#
54# ...Alaska's timezone lines were redrawn in 1983 to give only 2 tz.
55# The YST zone now covers nearly all of the state, AHST just part
56# of the Aleutian islands. No DST.
57
58# From U. S. Naval Observatory (January 19, 1989):
59# USA EASTERN 5 H BEHIND UTC NEW YORK, WASHINGTON
60# USA EASTERN 4 H BEHIND UTC APR 3 - OCT 30
61# USA CENTRAL 6 H BEHIND UTC CHICAGO, HOUSTON
62# USA CENTRAL 5 H BEHIND UTC APR 3 - OCT 30
63# USA MOUNTAIN 7 H BEHIND UTC DENVER
64# USA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 30
65# USA PACIFIC 8 H BEHIND UTC L.A., SAN FRANCISCO
66# USA PACIFIC 7 H BEHIND UTC APR 3 - OCT 30
67# USA ALASKA STD 9 H BEHIND UTC MOST OF ALASKA (AKST)
68# USA ALASKA STD 8 H BEHIND UTC APR 3 - OCT 30 (AKDT)
69# USA ALEUTIAN 10 H BEHIND UTC ISLANDS WEST OF 170W
70# USA - " - 9 H BEHIND UTC APR 3 - OCT 30
71# USA HAWAII 10 H BEHIND UTC
72# USA BERING 11 H BEHIND UTC SAMOA, MIDWAY
73
74# From Arthur David Olson (January 21, 1989):
75# The above dates are for 1988.
76# Note the "AKST" and "AKDT" abbreviations, the claim that there's
77# no DST in Samoa, and the claim that there is DST in Alaska and the
78# Aleutians.
79
80# From Arthur David Olson (February 13, 1988):
81# Legal standard time zone names, from United States Code (1982 Edition and
82# Supplement III), Title 15, Chapter 6, Section 260 and forward. First, names
83# up to April 1, 1967 (when most provisions of the Uniform Time Act of 1966
84# took effect), as explained in sections 263 and 261:
85# (none)
86# United States standard eastern time
87# United States standard mountain time
88# United States standard central time
89# United States standard Pacific time
90# (none)
91# United States standard Alaska time
92# (none)
93# Next, names from April 1, 1967 until November 30, 1983 (the date for
94# public law 98-181):
95# Atlantic standard time
96# eastern standard time
97# central standard time
98# mountain standard time
99# Pacific standard time
100# Yukon standard time
101# Alaska-Hawaii standard time
102# Bering standard time
103# And after November 30, 1983:
104# Atlantic standard time
105# eastern standard time
106# central standard time
107# mountain standard time
108# Pacific standard time
109# Alaska standard time
110# Hawaii-Aleutian standard time
111# Samoa standard time
112# The law doesn't give abbreviations.
113
114# From Paul Eggert <eggert@twinsun.com> (August 16, 1994):
115# Howse writes that Alaska switched from the Julian to the Gregorian calendar,
116# and from east-of-GMT to west-of-GMT days, in 1867 when the US purchased it
117# from Russia. We don't have this data pinned down yet, though.
118
119# Easy stuff first--including Alaska, where we ignore history (since we
120# can't tell if we should give Yukon time or Alaska-Hawaii time for "old"
121# times).
122
123# Zone NAME GMTOFF RULES FORMAT [UNTIL]
124Zone America/New_York -5:00 US E%sT
125Zone America/Chicago -6:00 US C%sT
126Zone America/Denver -7:00 US M%sT
127Zone America/Los_Angeles -8:00 US P%sT
128Zone America/Anchorage -9:00 US AK%sT
129 # AK%sT is the abbreviation per USNO
130
|
131# ZONE-DESCR America New_York United_States Eastern time (except Indiana and Michigan)
132# ZONE-DESCR America Chicago United_States Central time
133# ZONE-DESCR America Denver United_States Mountain time (except Arizona)
134# ZONE-DESCR America Los_Angeles United_States Pacific time
135# ZONE-DESCR America Anchorage United_States Alaska time
136 |
137# Mainland US areas that are always Standard as of 1986.
138
139Zone America/Fort_Wayne -5:00 US E%sT 1946
140 -5:00 - EST # Always EST as of 1986
|
| 141 |
142# From Arthur David Olson (October 28, 1991):
143# An article on page A3 of the Sunday, October 27, 1991 Washington Post
144# notes that Starke County switched from Central time to Eastern time as of
145# October 27, 1991.
146Zone America/Knox_IN -6:00 US C%sT 1991 Oct 27 2:00
147 -5:00 - EST # Always EST as of 1991
148Zone America/Phoenix -7:00 US M%sT 1946
149 -7:00 - MST # Always MST as of 1986
150
|
151# ZONE-DESCR America Fort_Wayne United_States Indiana (except Starke County)
152# ZONE-DESCR America Knox_IN United_States Indiana (Starke County)
153# ZONE-DESCR America Phoenix United_States Arizona (except Navajo Nation)
154# ZONE-DESCR . Navajo United_States Arizona (Navajo Nation)
155 |
156# From Arthur David Olson (February 13, 1988):
157# However. . .a writer from the Inter Tribal Council of Arizona, Inc.,
158# notes in private correspondence dated 12/28/87 that "Presently, only the
159# Navajo Nation participates in the Daylight Saving Time policy, due to its
160# large size and location in three states." (The "only" means that other
161# tribal nations don't use DST.)
162
163Link America/Denver Navajo
164
165# From Bob Devine (January 28, 1988):
166# Michigan didn't observe DST from 1968 to 1973.
167
168Zone America/Detroit -5:00 US E%sT 1968
169 -5:00 - EST 1973
170 -5:00 US E%sT
171
|
172# ZONE-DESCR America Detroit United_States Michigan
173 |
174# Samoa just changes names. No DST, per Naval Observatory.
175#
176# Howse writes that in 1879 the King of Samoa decided to change
177# ``the date in his kingdom from the Antipodean to the American system,
178# ordaining -- by a masterpiece of diplomatic flattery -- that
179# the Fourth of July should be celebrated twice in that year.''
180
181Zone Pacific/Samoa 12:37:12 - LMT 1879 Jul 5
182 -11:22:48 - LMT 1911
183 -11:30 - SST 1950
184 -11:00 - NST 1967 Apr # N=Nome
185 -11:00 - BST 1983 Nov 30 # B=Bering
186 -11:00 - SST # S=Samoa
187
188Zone Pacific/Midway -11:49:28 - LMT 1901
189 -11:00 - NST 1967 Apr # N=Nome
190 -11:00 - BST 1983 Nov 30 # B=Bering
191 -11:00 - SST # S=Samoa
192
193# Aleutian has a name change. DST, per Naval Observatory.
194
195Zone America/Atka -10:00 US AH%sT 1983 Nov 30
196 -10:00 US HA%sT
197
198# From Arthur David Olson:
199# And then there's Hawaii.
200# DST was observed for one day in 1933;
201# Standard time was change by half an hour in 1947;
202# it's always standard as of 1986.
203
204Zone Pacific/Honolulu -10:30 US H%sT 1933 Apr 30 2:00
205 -10:30 1:00 HDT 1933 May 1 2:00
206 -10:30 US H%sT 1947 Jun 8 2:00
207 -10:00 - HST
208
|
209# ZONE-DESCR Pacific Samoa United_States American Samoa
210# ZONE-DESCR Pacific Samoa Western_Samoa All points
211# ZONE-DESCR Pacific Midway United_States Midway Island
212# ZONE-DESCR America Atka United_States Aleutian Islands
213# ZONE-DESCR Pacific Honolulu United_States Hawaii
214 |
215# Navassa
216# no information; probably like US/Eastern
217
218
219# Old names, for S5 users
220
221# Link LINK-FROM LINK-TO
222Link America/New_York EST5EDT
223Link America/Chicago CST6CDT
224Link America/Denver MST7MDT
225Link America/Los_Angeles PST8PDT
226Link America/Fort_Wayne EST
227Link America/Phoenix MST
228Link Pacific/Honolulu HST
229
230################################################################################
231
232
233# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
234# A good source for time zone historical data outside the U.S. is
235# Thomas G. Shanks, The International Atlas (3rd edition),
236# San Diego: ACS Publications, Inc. (1991).
237# Except where otherwise noted, it is the source for the data below.
238#
239# Another source occasionally used is Edward W. Whitman, World Time Differences,
240# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
241# I found in the UCLA library.
242#
243# I invented the abbreviation SPST for St Pierre Standard Time; SPDT likewise.
244# Corrections are welcome!
245#
246# See the `africa' file for Zone naming conventions.
247
248
249
250# Canada
251
252# Canada is reportedly lots easier than the US--leastways since 1951.
253# I don't know what they did before then.
254# 4.3BSD claims that it's perfectly regular.
255# According to a posting in "comp.bugs.misc", "comp.unix.wizards", etc.
256# on February 8, 1987, by Dave Sherman of the Law Society of Upper Canada,
257# "...Canada (well, Ontario and at least some of the other provinces) are
258# adopting the new daylight savings time rules...". We assume all of
259# Canada is doing so.
260
261# From Bob Devine (January 28, 1988):
262# All of Canada did have DST from your first rule except Saskatchewan.
263# Which parts did not observe DST is hard to pinpoint but most of the
264# province follows the rules.
265# NOTE: those that didn't have DST for that rule, also
266# probably did not have it for several years previous.
267
268# From U. S. Naval Observatory (January 19, 1989):
269# CANADA NEW FDL 3.5H BEHIND UTC ST.JOHN'S
270# CANADA NEW FDL 1.5H BEHIND UTC APR 3 - OCT 29
271# CANADA ATLANTIC 4 H BEHIND UTC HALIFAX
272# CANADA ATLANTIC 3 H BEHIND UTC APR 3 - OCT 29
273# CANADA EASTERN 5 H BEHIND UTC TORONTO, MONTREAL, OTTAWA
274# CANADA EASTERN 4 H BEHIND UTC APR 3 - OCT 29
275# CANADA CENTRAL 6 H BEHIND UTC REGINA, WINNIPEG
276# CANADA CENTRAL 5 H BEHIND UTC APR 3 - OCT 29
277# CANADA MOUNTAIN 7 H BEHIND UTC CALGARY, EDMONTON
278# CANADA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 29
279# CANADA PACIFIC 8 H BEHIND UTC VANCOUVER
280# CANADA PACIFIC 7 H BEHIND UTC APR 3 - OCT 29
281# CANADA YUKON SAME AS PACIFIC DAWSON
282
283# From Arthur David Olson (January 21, 1989):
284# April 3 fell on a Sunday in 1988; October 29 fell on a Sunday in 1989. Ahem.
285# Note claim that there's double DST in Newfoundland and that Yukon should
286# be same as Pacific.
287
288# From W. Jones (jones@skdad.usask.ca) (November 6, 1992):
289# The. . .below is based on information I got from our law library, the
290# provincial archives, and the provincial Community Services department.
291# A precise history would require digging through newspaper archives, and
292# since you didn't say what you wanted, I didn't bother.
293#
294# Saskatchewan is split by a time zone meridian (105W) and over the years
295# the boundary became pretty ragged as communities near it reevaluated
296# their affiliations in one direction or the other. In 1965 a provincial
297# referendum favoured legislating common time practices.
298#
299# On 15 April 1966 the Time Act (c. T-14, Revised Statutes of
300# Saskatchewan 1978) was proclaimed, and established that the eastern
301# part of Saskatchewan would use CST year round, that districts in
302# northwest Saskatchewan would by default follow CST but could opt to
303# follow Mountain Time rules (thus 1 hour difference in the winter and
304# zero in the summer), and that districts in southwest Saskatchewan would
305# by default follow MT but could opt to follow CST.
306#
307# It took a few years for the dust to settle (I know one story of a town
308# on one time zone having its school in another, such that a mom had to
309# serve her family lunch in two shifts), but presently it seems that only
310# a few towns on the border with Alberta (e.g. Lloydminster) follow MT
311# rules any more; all other districts appear to have used CST year round
312# since sometime in the 1960s.
313#
314# Here's how I would summarize things. Establish a "Saskatchewan" CST
315# time zone, and note that it officially exists as of 15 April 1966. Any
316# current exceptions can put themselves in the "Mountain" zone, since
317# those are the rules they follow. Any past exceptions can be forgotten,
318# since that's what those who live here have done.
319
320# From Arthur David Olson (November 21, 1992):
321# East-Saskatchewan kept to avoid problems for folks using that zone by name;
322# plain Saskatchewan added.
323
324
325# From Shanks (1991):
326# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
327Rule StJohns 1884 only - Jan 1 0:00 0 S
328Rule StJohns 1917 1918 - Apr Sun>=8 2:00 1:00 D
329Rule StJohns 1917 only - Sep 17 2:00 0 S
330Rule StJohns 1918 only - Oct 31 2:00 0 S
331# Whitman gives 1919 Apr 5 and 1920 Apr 5; go with Shanks.
332Rule StJohns 1919 only - May 5 23:00 1:00 D
333Rule StJohns 1919 only - Aug 12 23:00 0 S
334# For 1931-1935 Whitman gives Apr same date; go with Shanks.
335Rule StJohns 1920 1935 - May Sun>=1 23:00 1:00 D
336Rule StJohns 1920 1935 - Oct lastSun 23:00 0 S
337# For 1936-1941 Shanks gives May Mon>=9 and Oct Mon>=2; go with Whitman.
338Rule StJohns 1936 1941 - May Sun>=8 0:00 1:00 D
339Rule StJohns 1936 1941 - Oct Sun>=1 0:00 0 S
340# Shanks gives 1942 May 11 - 1945 Sep 30; go with Whitman.
341Rule StJohns 1942 only - Mar 1 0:00 1:00 D
342Rule StJohns 1942 only - Dec 31 0:00 0 S
343Rule StJohns 1943 only - May 30 0:00 1:00 D
344Rule StJohns 1943 only - Sep 5 0:00 0 S
345Rule StJohns 1944 only - Jul 10 0:00 1:00 D
346Rule StJohns 1944 only - Sep 2 0:00 0 S
347Rule StJohns 1945 only - Jan 1 0:00 1:00 D
348Rule StJohns 1945 only - Oct 7 2:00 0 S
349# For 1946-9 Whitman gives May 5,4,9,1 - Oct 1,5,3,2, and for 1950 he gives
350# Apr 30 - Sep 24; go with Shanks.
351Rule StJohns 1946 1950 - May Sun>=8 2:00 1:00 D
352Rule StJohns 1946 1950 - Oct Sun>=2 2:00 0 S
353Rule StJohns 1951 1986 - Apr lastSun 2:00 1:00 D
354Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S
355Rule StJohns 1960 max - Oct lastSun 2:00 0 S
356Rule StJohns 1987 only - Apr Sun>=1 2:00 1:00 D
357Rule StJohns 1988 only - Apr Sun>=1 2:00 2:00 D
358Rule StJohns 1989 max - Apr Sun>=1 2:00 1:00 D
359# St John's has an apostrophe, but Posix file names can't have apostrophes.
360# Zone NAME GMTOFF RULES FORMAT [UNTIL]
361Zone America/St_Johns -3:30:52 - LMT 1884
362 -3:31 StJohns N%sT 1935 Mar 30
363 -3:30 StJohns N%sT
364
|
365# ZONE-DESCR America St_Johns Canada Newfoundland
366 |
367# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
368Rule Halifax 1902 only - Jun 15 0:00 0 S
369Rule Halifax 1916 only - Apr 1 0:00 1:00 D
370Rule Halifax 1916 only - Oct 1 0:00 0 S
371Rule Halifax 1918 only - Apr 14 2:00 1:00 D
372Rule Halifax 1918 only - Oct 31 2:00 0 S
373Rule Halifax 1920 only - May 9 0:00 1:00 D
374Rule Halifax 1920 only - Aug 29 0:00 0 S
375Rule Halifax 1921 only - May 6 0:00 1:00 D
376Rule Halifax 1921 1922 - Sep 5 0:00 0 S
377Rule Halifax 1922 only - Apr 30 0:00 1:00 D
378Rule Halifax 1923 1925 - May Sun>=1 0:00 1:00 D
379Rule Halifax 1923 only - Sep 4 0:00 0 S
380Rule Halifax 1924 only - Sep 15 0:00 0 S
381Rule Halifax 1925 only - Sep 28 0:00 0 S
382Rule Halifax 1926 only - May 16 0:00 1:00 D
383Rule Halifax 1926 only - Sep 13 0:00 0 S
384Rule Halifax 1927 only - May 1 0:00 1:00 D
385Rule Halifax 1927 only - Sep 26 0:00 0 S
386Rule Halifax 1928 1931 - May Sun>=8 0:00 1:00 D
387Rule Halifax 1928 only - Sep 9 0:00 0 S
388Rule Halifax 1929 only - Sep 3 0:00 0 S
389Rule Halifax 1930 only - Sep 15 0:00 0 S
390Rule Halifax 1931 1932 - Sep Mon>=24 0:00 0 S
391Rule Halifax 1933 only - Apr 30 0:00 1:00 D
392Rule Halifax 1933 only - Oct 2 0:00 0 S
393Rule Halifax 1934 only - May 20 0:00 1:00 D
394Rule Halifax 1934 only - Sep 16 0:00 0 S
395Rule Halifax 1935 only - Jun 2 0:00 1:00 D
396Rule Halifax 1935 only - Sep 30 0:00 0 S
397Rule Halifax 1936 only - Jun 1 0:00 1:00 D
398Rule Halifax 1936 only - Sep 14 0:00 0 S
399Rule Halifax 1937 1938 - May Sun>=1 0:00 1:00 D
400Rule Halifax 1937 1941 - Sep Mon>=24 0:00 0 S
401Rule Halifax 1939 only - May 28 0:00 1:00 D
402Rule Halifax 1940 1941 - May Sun>=1 0:00 1:00 D
403Rule Halifax 1942 only - Feb 9 2:00 1:00 D
404Rule Halifax 1945 1959 - Sep lastSun 2:00 0 S
405Rule Halifax 1946 1959 - Apr lastSun 2:00 1:00 D
406Rule Halifax 1962 1986 - Apr lastSun 2:00 1:00 D
407Rule Halifax 1962 max - Oct lastSun 2:00 0 S
408Rule Halifax 1987 max - Apr Sun>=1 2:00 1:00 D
409# Zone NAME GMTOFF RULES FORMAT [UNTIL]
410Zone America/Halifax -4:14:24 - LMT 1902 Jun 15
411 -4:00 Halifax A%sT
412
|
413# ZONE-DESCR America Halifax Canada Atlantic time
414 |
415# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
416Rule Mont 1884 only - Jan 1 0:00 0 S
417Rule Mont 1917 only - Mar 25 2:00 1:00 D
418Rule Mont 1917 only - Apr 24 0:00 0 S
419Rule Mont 1918 only - Apr 14 2:00 1:00 D
420Rule Mont 1918 only - Oct 31 2:00 0 S
421Rule Mont 1919 only - Mar 31 2:30 1:00 D
422Rule Mont 1919 only - Oct 25 2:30 0 S
423Rule Mont 1920 only - May 2 2:30 1:00 D
424Rule Mont 1920 only - Oct 3 2:30 0 S
425Rule Mont 1921 only - May 1 2:00 1:00 D
426Rule Mont 1921 only - Oct 2 2:30 0 S
427Rule Mont 1922 only - Apr 30 2:00 1:00 D
428Rule Mont 1922 only - Oct 1 2:30 0 S
429Rule Mont 1924 only - May 17 2:00 1:00 D
430Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
431Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
432Rule Mont 1927 only - May 1 0:00 1:00 D
433Rule Mont 1927 1932 - Sep Sun>=25 0:00 0 S
434Rule Mont 1928 1931 - Apr Sun>=25 0:00 1:00 D
435Rule Mont 1932 only - May 1 0:00 1:00 D
436Rule Mont 1933 1940 - Apr Sun>=24 0:00 1:00 D
437Rule Mont 1933 only - Oct 1 0:00 0 S
438Rule Mont 1934 1939 - Sep Sun>=24 0:00 0 S
439Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
440Rule Mont 1946 1986 - Apr lastSun 2:00 1:00 D
441Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
442Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
443Rule Mont 1957 max - Oct lastSun 2:00 0 S
444Rule Mont 1987 max - Apr Sun>=1 2:00 1:00 D
445# Zone NAME GMTOFF RULES FORMAT [UNTIL]
446Zone America/Montreal -4:54:16 - LMT 1884
447 -5:00 Mont E%sT
448
|
449# ZONE-DESCR America Montreal Canada Eastern time
450 |
451# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
452Rule Winn 1887 only - Jul 16 0:00 0 S
453Rule Winn 1916 only - Apr 23 0:00 1:00 D
454Rule Winn 1916 only - Sep 17 0:00 0 S
455Rule Winn 1918 only - Apr 14 2:00 1:00 D
456Rule Winn 1918 only - Oct 31 2:00 0 S
457Rule Winn 1937 only - May 16 2:00 1:00 D
458Rule Winn 1937 only - Sep 23 2:00 0 S
459Rule Winn 1942 only - Feb 9 2:00 1:00 D
460Rule Winn 1945 only - Sep lastSun 2:00 0 S
461Rule Winn 1946 only - May 12 2:00 1:00 D
462Rule Winn 1946 only - Oct 13 2:00 0 S
463Rule Winn 1947 1949 - Apr lastSun 2:00 1:00 D
464Rule Winn 1947 1958 - Sep lastSun 2:00 0 S
465Rule Winn 1948 only - May 1 2:00 1:00 D
466Rule Winn 1948 1960 - Apr lastSun 2:00 1:00 D
467Rule Winn 1959 only - Oct lastSun 2:00 0 S
468Rule Winn 1960 only - Sep lastSun 2:00 0 S
469Rule Winn 1963 only - Apr lastSun 2:00 1:00 D
470Rule Winn 1963 only - Sep lastSun 2:00 0 S
471Rule Winn 1966 1986 - Apr lastSun 2:00 1:00 D
472Rule Winn 1966 max - Sep lastSun 2:00 0 S
473Rule Winn 1987 max - Apr Sun>=1 2:00 1:00 D
474# Zone NAME GMTOFF RULES FORMAT [UNTIL]
475Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16
476 -6:00 Winn C%sT
477
|
478# ZONE-DESCR America Winnipeg Canada Manitoba
479 |
480# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
481Rule Regina 1905 only - Sep 1 0:00 0 S
482Rule Regina 1918 only - Apr 14 2:00 1:00 D
483Rule Regina 1918 only - Oct 31 2:00 0 S
484Rule Regina 1930 1934 - May Sun>=1 0:00 1:00 D
485Rule Regina 1930 1934 - Oct Sun>=1 0:00 0 S
486Rule Regina 1937 1941 - Apr Sun>=8 0:00 1:00 D
487Rule Regina 1937 only - Oct Sun>=8 0:00 0 S
488Rule Regina 1938 only - Oct Sun>=1 0:00 0 S
489Rule Regina 1939 1941 - Oct Sun>=8 0:00 0 S
490Rule Regina 1942 only - Feb 9 2:00 1:00 D
491Rule Regina 1945 only - Sep lastSun 2:00 0 S
492Rule Regina 1946 only - Apr 14 2:00 1:00 D
493Rule Regina 1946 only - Oct 13 2:00 0 S
494Rule Regina 1947 1960 - Apr lastSun 2:00 1:00 D
495Rule Regina 1947 1959 - Sep lastSun 2:00 0 S
496# Zone NAME GMTOFF RULES FORMAT [UNTIL]
497Zone America/Regina -6:58:36 - LMT 1905 Sep
498 -7:00 Regina M%sT 1966 Apr 15
499 -6:00 - CST
500
|
501# ZONE-DESCR America Regina Canada Saskatchewan
502 |
503# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
504Rule Edm 1906 only - Sep 1 0:00 0 S
505Rule Edm 1918 1919 - Apr Sun>=8 2:00 1:00 D
506Rule Edm 1918 only - Oct 31 2:00 0 S
507Rule Edm 1919 only - May 27 2:00 0 S
508Rule Edm 1920 1923 - Apr lastSun 2:00 1:00 D
509Rule Edm 1920 only - Oct lastSun 2:00 0 S
510Rule Edm 1921 1923 - Sep lastSun 2:00 0 S
511Rule Edm 1942 only - Feb 9 2:00 1:00 D
512Rule Edm 1945 only - Sep lastSun 2:00 0 S
513Rule Edm 1947 only - Apr lastSun 2:00 1:00 D
514Rule Edm 1947 only - Sep lastSun 2:00 0 S
515Rule Edm 1967 only - Apr lastSun 2:00 1:00 D
516Rule Edm 1967 only - Oct lastSun 2:00 0 S
517Rule Edm 1969 only - Apr lastSun 2:00 1:00 D
518Rule Edm 1969 only - Oct lastSun 2:00 0 S
519Rule Edm 1972 1986 - Apr lastSun 2:00 1:00 D
520Rule Edm 1972 max - Oct lastSun 2:00 0 S
521Rule Edm 1987 max - Apr Sun>=1 2:00 1:00 D
522# Zone NAME GMTOFF RULES FORMAT [UNTIL]
523Zone America/Edmonton -7:33:52 - LMT 1906 Sep
524 -7:00 Edm M%sT
525
|
526# ZONE-DESCR America Edmonton Canada Alberta
527 |
528# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
529Rule Vanc 1884 only - Jan 1 0:00 0 S
530Rule Vanc 1918 only - Apr 14 2:00 1:00 D
531Rule Vanc 1918 only - Oct 31 2:00 0 S
532Rule Vanc 1942 only - Feb 9 2:00 1:00 D
533Rule Vanc 1945 only - Sep 30 2:00 0 S
534Rule Vanc 1946 1986 - Apr lastSun 2:00 1:00 D
535Rule Vanc 1946 only - Oct 13 2:00 0 S
536Rule Vanc 1947 1961 - Sep lastSun 2:00 0 S
537Rule Vanc 1962 max - Oct lastSun 2:00 0 S
538Rule Vanc 1987 max - Apr Sun>=1 2:00 1:00 D
539# Zone NAME GMTOFF RULES FORMAT [UNTIL]
540Zone America/Vancouver -8:12:28 - LMT 1884
541 -8:00 Vanc P%sT
542
|
543# ZONE-DESCR America Vancouver Canada British Columbia
544 |
545# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
546Rule Yukon 1900 only - Jan 1 0:00 0 S
547Rule Yukon 1918 only - Apr 14 2:00 1:00 D
548Rule Yukon 1918 only - Oct 27 2:00 0 S
549Rule Yukon 1919 only - May 25 2:00 1:00 D
550Rule Yukon 1919 only - Nov 1 0:00 0 S
551Rule Yukon 1942 only - Feb 9 2:00 1:00 D
552Rule Yukon 1965 only - Apr 25 0:00 1:00 D
553Rule Yukon 1965 only - Oct 31 2:00 0 S
554Rule Yukon 1980 1986 - Apr lastSun 2:00 1:00 D
555Rule Yukon 1980 max - Oct lastSun 2:00 0 S
556Rule Yukon 1987 max - Apr Sun>=1 2:00 1:00 D
557# Zone NAME GMTOFF RULES FORMAT [UNTIL]
558Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
559 -9:00 Yukon Y%sT 1966 Jul
560 -8:00 Yukon P%sT
561# Parts of Yukon (e.g. Dawson) didn't switch to -8:00 until 1973 Oct 28.
562
|
563# ZONE-DESCR America Whitehorse Canada Yukon Territory
564 |
565###############################################################################
566
567# Mexico
568
569# From Guy Harris:
570# Rules are from the Official Airline Guide, Worldwide Edition, for 1987.
571# Rules prior to 1987 are unknown.
572# The comments in the OAG say "Only Ensenada, Mexicale, San Felipe and Tijuana
573# observe DST." This is presumably Baja California Norte, above 28th parallel,
574# as listed there; Mexico/BajaSur is for "Baja California Sur and N. Pacific
575# Coast (States of Sinaloa and Sonora)."
576
577# From Bob Devine (January 28, 1988):
578# The Federal District (where Mexico City is) has observed [DST] several
579# times but not recently.
580#
581# I don't where to drawn the line in the North Baja area. 28th latitude
582# sounds good -- but it may be higher (how far [d]o radio stations from
583# San Diego affect culture?).
584#
585# The dates of DST probably go back to 1981. The rules are the same as
586# US's. This is going to be a headache for US presidential electi[o]n years!
587
588# From Arthur David Olson (February 13, 1988)
589# Since the 1981 starting date is only "probable," we'll keep the 1987
590# starting date below.
591
592# From U. S. Naval Observatory (January 19, 1989):
593# MEXICO BAJA CAL N 7 H BEHIND UTC BAJA CALIFORNIA SUR AND
594# MEXICO BAJA CAL N N. PACIFIC COAST (STATES
595# MEXICO BAJA CAL N OF SINALOA AND SONORA)
596# MEXICO BAJA CAL N 8 H BEHIND UTC ABOVE 28TH PARALLAL APR 3
597# MEXICO BAJA CAL N - OCT 29
598# MEXICO BAJA CAL N 7 H BEHIND UTC ABOVE 28TH PARALLAL APR 3
599# MEXICO BAJA CAL N - 0CT 29
600# MEXICO 6 H BEHIND UTC STATES OF DURANGO,
601# MEXICO COAHUILA, NUEVO LEON,
602# MEXICO TAMAULIPAS
603# MEXICO 5 H BEHIND UTC STATES OF DURANGO,
604# MEXICO COAHUILA, NUEVO LEON,
605# MEXICO TAMAULIPAS APR 3 - OCT 29
606# MEXICO 6 H BEHIND UTC GENERAL MEXICO, STATES OF
607# MEXICO CAMPECHE, QUINTANA ROO AND
608# MEXICO YUCATAN
609
610# From Arthur David Olson (January 21, 1989):
611# April 3 fell on a Sunday in 1988; October 29 fell on a Sunday in 1989. Ahem.
612# USNO claims there should be four Mexican zones rather than three:
613# a zone that's GMT-8 with DST; a zone that's always GMT-7;
614# a zone that's GMT-6 with DST; and a zone that's always GMT-6.
615
616# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
617# Shanks also says there are four zones, but disagrees about the fourth.
618# Instead of GMT-6 with DST, he says there's GMT-8 without DST.
619
620# From Shanks (1991):
621# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
622Rule Mexico 1922 only - Jan 1 0:00 0 S
623Rule Mexico 1939 only - Feb 5 0:00 1:00 D
624Rule Mexico 1939 only - Jun 25 0:00 0 S
625Rule Mexico 1940 only - Dec 9 0:00 1:00 D
626Rule Mexico 1941 only - Apr 1 0:00 0 S
627Rule Mexico 1943 only - Dec 16 0:00 1:00 D
628Rule Mexico 1944 only - May 1 0:00 0 S
629Rule Mexico 1950 only - Feb 12 0:00 1:00 D
630Rule Mexico 1950 only - Jul 30 0:00 0 S
631Rule BajaN 1950 1966 - Apr lastSun 2:00 1:00 D
632Rule BajaN 1950 1961 - Sep lastSun 2:00 0 S
633Rule BajaN 1961 1966 - Oct lastSun 2:00 0 S
634# Zone NAME GMTOFF RULES FORMAT [UNTIL]
635Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24
636 -7:00 - MST 1927 Jun 10 23:00
637 -6:00 - CST 1930 Nov 15
638 -7:00 - MST 1931 May 1 23:00
639 -6:00 - CST 1931 Oct
640 -7:00 - MST 1932 Mar 30 23:00
641 -6:00 Mexico C%sT
|
| 642# ZONE-DESCR America Mexico_City Mexico Mexico City |
643Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20
644 -7:00 - MST 1927 Jun 10 23:00
645 -6:00 - CST 1930 Nov 15
646 -7:00 - MST 1931 May 1 23:00
647 -6:00 - CST 1931 Oct
648 -7:00 - MST 1932 Mar 30 23:00
649 -6:00 - CST 1942 Apr
650 -7:00 - MST 1949 Jan 14
651 -8:00 - PST 1970
652 -7:00 - MST
|
| 653# ZONE-DESCR America Mazatlan Mexico Mazatlan |
654Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56
655 -8:00 - PST 1927 Jun 10 23:00
656 -7:00 - MST 1930 Nov 16
657 -8:00 - PST 1942 Apr
658 -7:00 - MST 1949 Jan 14
659 -8:00 BajaN P%sT 1967 Apr lastSun 2:00
660 -8:00 US P%sT
|
| 661# ZONE-DESCR America Tijuana Mexico Baja California Norte |
662Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32
663 -8:00 - PST 1927 Jun 10 23:00
664 -7:00 - MST 1930 Nov 16
665 -8:00 - PST 1942 Apr
666 -7:00 - MST 1949 Jan 14
667 -8:00 - PST
|
668# ZONE-DESCR America Ensenada Mexico Ensenada
669 |
670#
671# Revillagigedo Is
672# no information
673
674###############################################################################
675
676# Anguilla
677# Zone NAME GMTOFF RULES FORMAT [UNTIL]
678Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2
679 -4:00 - AST
680
|
681# ZONE-DESCR America Anguilla Anguilla All points
682 |
683# Antigua and Barbuda
684# Zone NAME GMTOFF RULES FORMAT [UNTIL]
685Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
686 -5:00 - EST 1951
687 -4:00 - AST
688
|
689# ZONE-DESCR America Antigua Antigua All points
690 |
691# Bahamas
692# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
693Rule Bahamas 1912 only - Mar 2 0:00 0 S
694Rule Bahamas 1964 max - Oct lastSun 2:00 0 S
695Rule Bahamas 1964 1986 - Apr lastSun 2:00 1:00 D
696Rule Bahamas 1987 max - Apr Sun>=1 2:00 1:00 D
697# Zone NAME GMTOFF RULES FORMAT [UNTIL]
698Zone America/Nassau -5:09:24 - LMT 1912 Mar 2
699 -5:00 Bahamas E%sT
700
|
701# ZONE-DESCR America Nassau Bahamas All points
702 |
703# Barbados
704# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
705Rule Barb 1932 only - Jan 1 0:00 0 S
706Rule Barb 1977 only - Jun 12 2:00 1:00 D
707Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S
708Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D
709Rule Barb 1979 only - Sep 30 2:00 0 S
710Rule Barb 1980 only - Sep 25 2:00 0 S
711# Zone NAME GMTOFF RULES FORMAT [UNTIL]
712Zone America/Barbados -3:58:28 - LMT 1924 # Bridgetown
713 -3:58 - BMT 1932 # Bridgetown Mean Time
714 -4:00 Barb A%sT
715
|
716# ZONE-DESCR America Barbados Barbados All points
717 |
718# Belize
719# Whitman entirely disagrees with Shanks; go with Shanks.
720# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
721Rule Belize 1912 only - Apr 1 0:00 0 S
722Rule Belize 1918 1942 - Oct Sun>=2 0:00 0:30 HD
723Rule Belize 1919 1943 - Feb Sun>=9 0:00 0 S
724Rule Belize 1973 only - Dec 5 0:00 1:00 D
725Rule Belize 1974 only - Feb 9 0:00 0 S
726Rule Belize 1982 only - Dec 18 0:00 1:00 D
727Rule Belize 1983 only - Feb 12 0:00 0 S
728# Zone NAME GMTOFF RULES FORMAT [UNTIL]
729Zone America/Belize -5:52:48 - LMT 1912 Apr
730 -6:00 Belize C%sT
731
|
732# ZONE-DESCR America Belize Belize All points
733 |
734# Bermuda
735# Zone NAME GMTOFF RULES FORMAT [UNTIL]
736Zone Atlantic/Bermuda -4:19:04 - LMT 1930 Jan 1 2:00 # Hamilton
737 -4:00 - AST 1974 Apr 28 2:00
738 -4:00 Bahamas A%sT
739
|
740# ZONE-DESCR Atlantic Bermuda Bermuda All points
741 |
742# Cayman Is
743# Zone NAME GMTOFF RULES FORMAT [UNTIL]
744Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
745 -5:07 - KMT 1912 Feb # Kingston Mean Time
746 -5:00 - EST
747
|
748# ZONE-DESCR America Cayman Cayman_Islands All points
749 |
750# Clipperton
751# no information
752
753# Costa Rica
754# Shanks gives some very odd dates for 1991, and stops there.
755# For now, we won't guess further.
756# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
757Rule CR 1921 only - Jan 15 0:00 0 S
758Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D
759Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S
760Rule CR 1991 only - Jan 19 0:00 1:00 D
761Rule CR 1991 only - Jul 1 0:00 0 S
762# There are too many San Joses elsewhere, so we'll use `Costa Rica'.
763# Zone NAME GMTOFF RULES FORMAT [UNTIL]
764Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose
765 -5:36 - SJMT 1921 Jan 15 # San Jose Mean Time
766 -6:00 CR C%sT
|
767# ZONE-DESCR America Costa_Rica Costa_Rica All points
768 |
769# Coco
770# no information; probably like America/Costa_Rica
771
772# Cuba
773
774# From Bob Devine (January 28, 1988):
775# . . .DST is from 2nd Sunday in May to 2nd Sunday in October since 1981.
776# Change at midnight. In 1979 & 1980, started at 3rd Sunday in March
777# (I think).
778
779# From U. S. Naval Observatory (January 19, 1989):
780# CUBA 5 H BEHIND UTC
781# CUBA 4 H BEHIND UTC MAR 20 - OCT 8
782
783# From Shanks (1991):
784# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
785Rule Cuba 1925 only - Jul 19 12:00 0 S
786Rule Cuba 1928 only - Jun 10 0:00 1:00 D
787Rule Cuba 1928 only - Oct 10 0:00 0 S
788Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D
789Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S
790Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D
791Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S
792Rule Cuba 1965 only - Jun 1 0:00 1:00 D
793Rule Cuba 1965 only - Sep 30 0:00 0 S
794Rule Cuba 1966 only - May 29 0:00 1:00 D
795Rule Cuba 1966 only - Oct 2 0:00 0 S
796Rule Cuba 1967 only - Apr 8 0:00 1:00 D
797Rule Cuba 1967 1968 - Sep Sun>=8 0:00 0 S
798Rule Cuba 1968 only - Apr 14 0:00 1:00 D
799Rule Cuba 1969 1977 - Apr lastSun 0:00 1:00 D
800Rule Cuba 1969 1971 - Oct lastSun 0:00 0 S
801Rule Cuba 1972 1974 - Oct 8 0:00 0 S
802Rule Cuba 1975 1977 - Oct lastSun 0:00 0 S
803Rule Cuba 1978 only - May 7 0:00 1:00 D
804Rule Cuba 1978 1980 - Oct Sun>=8 0:00 0 S
805Rule Cuba 1979 1980 - Mar Sun>=15 0:00 1:00 D
806Rule Cuba 1981 1985 - May Sun>=5 0:00 1:00 D
807Rule Cuba 1981 max - Oct Sun>=8 0:00 0 S
808Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
809Rule Cuba 1990 only - Apr 1 0:00 1:00 D
810Rule Cuba 1991 max - Mar Sun>=14 0:00 1:00 D
811
812# Zone NAME GMTOFF RULES FORMAT [UNTIL]
813Zone America/Havana -5:29:28 - LMT 1890
814 -5:30 - HMT 1925 Jul 19 12:00 # Havana MT
815 -5:00 Cuba C%sT
816
|
817# ZONE-DESCR America Havana Cuba All points
818 |
819# Dominica
820# Zone NAME GMTOFF RULES FORMAT [UNTIL]
821Zone America/Dominica -4:05:36 - LMT 1911 Jul 1 0:01 # Roseau
822 -4:00 - AST
823
|
824# ZONE-DESCR America Dominica Dominica All points
825 |
826# Dominican Republic
827# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
828Rule DR 1933 only - Apr 1 12:00 0 S
829Rule DR 1966 only - Oct 30 0:00 1:00 D
830Rule DR 1967 only - Feb 28 0:00 0 S
831Rule DR 1969 1973 - Oct lastSun 0:00 0:30 HD
832Rule DR 1970 only - Feb 21 0:00 0 S
833Rule DR 1971 only - Jan 20 0:00 0 S
834Rule DR 1972 1974 - Jan 21 0:00 0 S
835# Zone NAME GMTOFF RULES FORMAT [UNTIL]
836Zone America/Santo_Domingo -4:39:36 - LMT 1890
837 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
838 -5:00 DR E%sT 1974 Oct 27
839 -4:00 - AST
840
|
841# ZONE-DESCR America Santo_Domingo Dominican_Republic All points
842 |
843# El Salvador
844# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
845Rule Salv 1921 only - Jan 1 0:00 0 S
846Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D
847Rule Salv 1987 1988 - Sep lastSun 0:00 0 S
848# There are too many San Salvadors elsewhere, so we'll use `El Salvador'.
849# Zone NAME GMTOFF RULES FORMAT [UNTIL]
850Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
851 -6:00 Salv C%sT
852
|
853# ZONE-DESCR America El_Salvador El_Salvador All points
854 |
855# Grenada
856# Zone NAME GMTOFF RULES FORMAT [UNTIL]
857Zone America/Grenada -4:07:00 - LMT 1911 Jul
858 -4:00 - AST
859
|
860# ZONE-DESCR America Grenada Grenada All points
861 |
862# Guadeloupe
863# Zone NAME GMTOFF RULES FORMAT [UNTIL]
864Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe a Pitre
865 -4:00 - AST
866
|
867# ZONE-DESCR America Guadeloupe Guadeloupe All points
868 |
869# Guatemala
870# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
871Rule Guat 1918 only - Oct 5 0:00 0 S
872Rule Guat 1973 only - Nov 25 0:00 1:00 D
873Rule Guat 1974 only - Feb 24 0:00 0 S
874Rule Guat 1983 only - May 21 0:00 1:00 D
875Rule Guat 1983 only - Sep 22 0:00 0 S
876# Zone NAME GMTOFF RULES FORMAT [UNTIL]
877Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
878 -6:00 Guat C%sT
879
|
880# ZONE-DESCR America Guatemala Guatemala All points
881 |
882# Haiti
883# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
884Rule Haiti 1917 only - Jan 24 12:00 0 S
885Rule Haiti 1983 only - May 8 0:00 1:00 D
886Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D
887Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S
888Rule Haiti 1988 max - Apr Sun>=1 2:00 1:00 D
889Rule Haiti 1988 max - Oct lastSun 2:00 0 S
890# Zone NAME GMTOFF RULES FORMAT [UNTIL]
891Zone America/Port-au-Prince -4:49:20 - LMT 1890
892 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT
893 -5:00 Haiti E%sT
894
|
895# ZONE-DESCR America Port-au-Prince Haiti All points
896 |
897# Honduras
898# Shanks says 1921 Jan 1; go with Whitman's more precise Apr 1.
899# Zone NAME GMTOFF RULES FORMAT [UNTIL]
900Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr
901 -6:00 Salv C%sT
902
|
903# ZONE-DESCR America Tegucigalpa Honduras All points
904 |
905# Jamaica
906
907# From Bob Devine (January 28, 1988):
908# Follows US rules.
909
910# From U. S. Naval Observatory (January 19, 1989):
911# JAMAICA 5 H BEHIND UTC
912
913# From Shanks (1991):
914# Zone NAME GMTOFF RULES FORMAT [UNTIL]
915Zone America/Jamaica -5:07:12 - LMT 1890 # Kingston
916 -5:07 - KMT 1912 Feb # Kingston Mean Time
917 -5:00 - EST 1974 Jan 6 2:00
918 -5:00 US E%sT
919
|
920# ZONE-DESCR America Jamaica Jamaica All points
921 |
922# Martinique
923# Zone NAME GMTOFF RULES FORMAT [UNTIL]
924Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France
925 -4:04 - FFMT 1911 May # Fort-de-France MT
926 -4:00 - AST 1980 Apr 6
927 -4:00 1:00 ADT 1980 Sep 28
928 -4:00 - AST
929
|
930# ZONE-DESCR America Martinique Martinique All points
931 |
932# Montserrat
933# Zone NAME GMTOFF RULES FORMAT [UNTIL]
934Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Plymouth
935 -4:00 - AST
936
|
937# ZONE-DESCR America Montserrat Montserrat All points
938 |
939# Nicaragua
940# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
941Rule Nic 1975 only - Feb 16 0:00 0 S
942Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
943Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
944# Zone NAME GMTOFF RULES FORMAT [UNTIL]
945Zone America/Managua -5:45:08 - LMT 1890
946 -5:45 - MMT 1934 Jun 23 # Managua Mean Time
947 -6:00 - CST 1973 May
948 -5:00 - EST 1975 Feb 16
949 -6:00 Nic C%sT
950
|
951# ZONE-DESCR America Managua Nicaragua All points
952 |
953# Panama
954# Zone NAME GMTOFF RULES FORMAT [UNTIL]
955Zone America/Panama -5:18:08 - LMT 1890
956 -5:20 - PMT 1908 Apr 22 # Panama Mean Time
957 -5:00 - EST
958
|
959# ZONE-DESCR America Panama Panama All points
960 |
961# Puerto Rico
962# There are too many San Juans elsewhere, so we'll use `Puerto_Rico'.
963# Zone NAME GMTOFF RULES FORMAT [UNTIL]
964Zone America/Puerto_Rico -4:24:28 - LMT 1899 Mar 28 12:00 # San Juan
965 -4:00 - AST 1942 May 3
966 -4:00 1:00 ADT 1945 Sep 30 2:00
967 -4:00 - AST
968
|
969# ZONE-DESCR America Puerto_Rico United_States Puerto Rico
970 |
971# St Kitts-Nevis
972# Zone NAME GMTOFF RULES FORMAT [UNTIL]
973Zone America/St_Kitts -4:10:52 - LMT 1912 Mar 2 # Basseterre
974 -4:00 - AST
975
|
976# ZONE-DESCR America St_Kitts St_Kitts_and_Nevis All points
977 |
978# St Lucia
979# Zone NAME GMTOFF RULES FORMAT [UNTIL]
980Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries
981 -4:04 - CMT 1912 # Castries Mean Time
982 -4:00 - AST
983
|
984# ZONE-DESCR America St_Lucia St_Lucia All points
985 |
986# St Pierre and Miquelon
987# There are too many St Pierres elsewhere, so we'll use `Miquelon'.
988# Zone NAME GMTOFF RULES FORMAT [UNTIL]
989Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
990 -4:00 - AST 1980 May
991 -3:00 Mont SP%sT
992
|
993# ZONE-DESCR America Miquelon France St. Pierre and Miquelon
994 |
995# St Vincent and the Grenadines
996# Zone NAME GMTOFF RULES FORMAT [UNTIL]
997Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown
998 -4:05 - KMT 1912 # Kingstown Mean Time
999 -4:00 - AST
1000
|
1001# ZONE-DESCR America St_Vincent St_Vincent All points
1002 |
1003# Turks and Caicos
1004# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1005Zone America/Grand_Turk -4:44:32 - LMT 1890
1006 -5:07 - KMT 1912 Feb # Kingston Mean Time
1007 -5:00 - EST 1979 Apr 29 2:00
1008 -5:00 US E%sT
1009
|
1010# ZONE-DESCR America Grand_Turk Turks_and_Caicos All points
1011 |
1012# Virgin Is (British and US)
1013# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1014Zone America/Virgin -4:19:44 - LMT 1911 Jul # Charlotte Amalie
1015 -4:00 - AST
|
1016
1017# ZONE-DESCR America Virgin United_States US Virgin Islands
1018# ZONE-DESCR America virgin United_Kingdom British Virgin Islands |
|