1# @(#)northamerica 7.63
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> (1999-03-22):
9# A reliable and entertaining source about time zones is
--- 178 unchanged lines hidden (view full) ---
188# central standard time
189# mountain standard time
190# Pacific standard time
191# Alaska standard time
192# Hawaii-Aleutian standard time
193# Samoa standard time
194# The law doesn't give abbreviations.
195#
196# From Paul Eggert (1995-12-19):
197# Shanks uses 1983-10-30, not 1983-11-30, for the 1983 transitions.
198# Go with Shanks.
199#
200# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
201# Public law 106-564 (2000-12-23) introduced the abbreviation
202# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
203# See the file "australasia".
204
205
206# US eastern time, represented by New York
207
--- 15 unchanged lines hidden (view full) ---
223 -5:00 US E%sT 1920
224 -5:00 NYC E%sT 1942
225 -5:00 US E%sT 1946
226 -5:00 NYC E%sT 1967
227 -5:00 US E%sT
228
229# US central time, represented by Chicago
230
231# Alabama, Arkansas, Florida panhandle, Illinois, western Indiana
232# (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
233# Vanderburgh, and Warrick counties), Iowa, most of Kansas, western
234# Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern
235# Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota,
236# western Tennessee, most of Texas, Wisconsin
237
238# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
239Rule Chicago 1920 only - Jun 13 2:00 1:00 D
--- 13 unchanged lines hidden (view full) ---
253 -6:00 US C%sT
254# Oliver County, ND switched from mountain to central time on 1992-10-25.
255Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:00
256 -7:00 US M%sT 1992 Oct 25 02:00
257 -6:00 US C%sT
258
259# US mountain time, represented by Denver
260#
261# Colorado, southern Idaho, far western Kansas, Montana, western
262# Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),
263# New Mexico, southwestern North Dakota, far eastern Oregon,
264# western South Dakota, far western Texas (El Paso County, Hudspeth County,
265# and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming
266#
267# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
268Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
269Rule Denver 1920 only - Oct lastSun 2:00 0 S
--- 5 unchanged lines hidden (view full) ---
275 -7:00 US M%sT 1920
276 -7:00 Denver M%sT 1942
277 -7:00 US M%sT 1946
278 -7:00 Denver M%sT 1967
279 -7:00 US M%sT
280
281# US Pacific time, represented by Los Angeles
282#
283# California, northern Idaho, most of Nevada, most of Oregon, and Washington
284#
285# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
286Rule CA 1948 only - Mar 14 2:00 1:00 D
287Rule CA 1949 only - Jan 1 2:00 0 S
288Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D
289Rule CA 1950 1961 - Sep lastSun 2:00 0 S
290Rule CA 1962 1966 - Oct lastSun 2:00 0 S
291# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 22 unchanged lines hidden (view full) ---
314#
315# Zone NAME GMTOFF RULES FORMAT [UNTIL]
316Zone America/Juneau 15:02:19 - LMT 1867 Oct 18
317 -8:57:41 - LMT 1900 Aug 20 12:00
318 -8:00 - PST 1942
319 -8:00 US P%sT 1946
320 -8:00 - PST 1969
321 -8:00 US P%sT 1983 Oct 30 2:00
322 -9:00 US AK%sT
323Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
324 -9:18:55 - LMT 1900 Aug 20 12:00
325 -9:00 - YST 1942
326 -9:00 US Y%sT 1946
327 -9:00 - YST 1969
328 -9:00 US Y%sT 1983 Oct 30 2:00
329 -9:00 US AK%sT
330Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
331 -9:59:36 - LMT 1900 Aug 20 12:00
332 -10:00 - CAT 1942
333 -10:00 US CAT/CAWT 1946
334 -10:00 - CAT 1967 Apr
335 -10:00 - AHST 1969
336 -10:00 US AH%sT 1983 Oct 30 2:00
337 -9:00 US AK%sT
338Zone America/Nome 12:58:21 - LMT 1867 Oct 18
339 -11:01:38 - LMT 1900 Aug 20 12:00
340 -11:00 - NST 1942
341 -11:00 US N%sT 1946
342 -11:00 - NST 1967 Apr
343 -11:00 - BST 1969
344 -11:00 US B%sT 1983 Oct 30 2:00
345 -9:00 US AK%sT
346Zone America/Adak 12:13:21 - LMT 1867 Oct 18
347 -11:46:38 - LMT 1900 Aug 20 12:00
348 -11:00 - NST 1942
349 -11:00 US N%sT 1946
350 -11:00 - NST 1967 Apr
351 -11:00 - BST 1969
352 -11:00 US B%sT 1983 Oct 30 2:00
353 -10:00 US HA%sT
354# Shanks writes that part of southwest Alaska (e.g. Aniak)
355# switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
356# and another part (e.g. Akiak) made the same switch five weeks later.
357# These switches don't quite make our 1970 cutoff.
358
359# Hawaii
360#
--- 39 unchanged lines hidden (view full) ---
400 -7:00 US M%sT 1944 Jan 1 00:01
401 -7:00 - MST 1944 Apr 1 00:01
402 -7:00 US M%sT 1944 Oct 1 00:01
403 -7:00 - MST 1967
404 -7:00 US M%sT 1968 Mar 21
405 -7:00 - MST
406# From Arthur David Olson (1988-02-13):
407# A writer from the Inter Tribal Council of Arizona, Inc.,
408# notes in private correspondence dated 12/28/87 that "Presently, only the
409# Navajo Nation participates in the Daylight Saving Time policy, due to its
410# large size and location in three states." (The "only" means that other
411# tribal nations don't use DST.)
412
413Link America/Denver America/Shiprock
414
415# Southern Idaho and eastern Oregon switched four weeks late in 1974.
416# Zone NAME GMTOFF RULES FORMAT [UNTIL]
417Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00
418 -8:00 US P%sT 1923 May 13 2:00
419 -7:00 US M%sT 1974
420 -7:00 - MST 1974 Feb 3 2:00
421 -7:00 US M%sT
422
423# Indiana
--- 522 unchanged lines hidden (view full) ---
946Rule Mont 1919 only - Oct 25 2:30 0 S
947Rule Mont 1920 only - May 2 2:30 1:00 D
948Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
949Rule Mont 1921 only - May 1 2:00 1:00 D
950Rule Mont 1922 only - Apr 30 2:00 1:00 D
951Rule Mont 1924 only - May 17 2:00 1:00 D
952Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
953Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
954Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
955Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
956Rule Mont 1938 1940 - Apr lastSun 0:00 1:00 D
957Rule Mont 1938 1939 - Sep lastSun 0:00 0 S
958Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
959Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
960Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
961Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
962Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
963
964Rule Toronto 1919 only - Mar 30 23:30 1:00 D
965Rule Toronto 1919 only - Oct 26 0:00 0 S
966Rule Toronto 1920 only - May 2 2:00 1:00 D
967Rule Toronto 1920 only - Sep 26 0:00 0 S
968Rule Toronto 1921 only - May 15 2:00 1:00 D
969Rule Toronto 1921 only - Sep 15 2:00 0 S
970Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D
971# Shanks says 1923-09-19; assume it's a typo and that "-16" was meant.
972Rule Toronto 1922 1926 - Sep Sun>=15 2:00 0 S
973Rule Toronto 1924 1927 - May Sun>=1 2:00 1:00 D
974Rule Toronto 1927 1928 - Sep lastSun 2:00 0 S
975Rule Toronto 1928 only - Apr lastSun 2:00 1:00 D
976Rule Toronto 1929 only - Apr lastSun 0:00 1:00 D
977Rule Toronto 1929 only - Sep lastSun 0:00 0 S
978Rule Toronto 1930 1937 - Apr lastSat 24:00 1:00 D
979Rule Toronto 1930 1937 - Sep lastSat 24:00 0 S
980Rule Toronto 1938 1940 - Apr lastSun 0:00 1:00 D
981Rule Toronto 1938 1939 - Sep lastSun 0:00 0 S
982Rule Toronto 1945 1946 - Sep lastSun 2:00 0 S
983Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D
984Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D
985Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S
986Rule Toronto 1949 only - Nov lastSun 0:00 0 S
987Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D
988Rule Toronto 1950 only - Nov lastSun 2:00 0 S
989Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S
990# Shanks says Toronto ended DST a week early in 1971, namely on 1971-10-24,
991# but Mark Brader wrote (2003-05-31) that he checked the 1971-10-30 issue
992# of the Toronto Star, and it said that DST ended 1971-10-31 as usual.
993Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S
994
995# From Paul Eggert (2003-07-27):
996# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
997# Port Arthur, Ontario, the principle of the Bill has been in
998# operation for the past three years, and in the City of Moose Jaw,
999# Saskatchewan, for one year." Assume that the Thunder Bay region
1000# observed DST starting 1910, and Moose Jaw starting 1912, as this
1001# matches the Toronto Star report about Moose Jaw. For lack of better
1002# info, assume the Thunder Bay region used Willett's proposal, namely
1003# third Sunday in April at 02:00 to third Sunday in September at
1004# 03:00; also assume that they continued until Canada instituted
1005# uniform DST in 1918.
1006Rule Thunder 1910 1917 - Apr Sun>=15 2:00s 1:00 D
1007Rule Thunder 1910 1917 - Sep Sun>=15 2:00s 0 S
1008
1009# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1010Zone America/Montreal -4:54:16 - LMT 1884
1011 -5:00 Mont E%sT 1918
1012 -5:00 Canada E%sT 1919
1013 -5:00 Mont E%sT 1942 Feb 9 2:00s
1014 -5:00 Canada E%sT 1946
1015 -5:00 Mont E%sT 1974
1016 -5:00 Canada E%sT
1017Zone America/Toronto -5:17:32 - LMT 1895
1018 -5:00 Canada E%sT 1919
1019 -5:00 Toronto E%sT 1942 Feb 9 2:00s
1020 -5:00 Canada E%sT 1946
1021 -5:00 Toronto E%sT 1974
1022 -5:00 Canada E%sT
1023Zone America/Thunder_Bay -5:57:00 - LMT 1895
1024 -5:00 Thunder E%sT 1918
1025 -5:00 Canada E%sT 1940 Sep 29
1026 -5:00 1:00 EDT 1942 Feb 9 2:00s
1027 -5:00 Canada E%sT 1970
1028 -5:00 Mont E%sT 1973
1029 -5:00 - EST 1974
1030 -5:00 Canada E%sT
1031Zone America/Nipigon -5:53:04 - LMT 1895
1032 -5:00 Canada E%sT 1940 Sep 29
1033 -5:00 1:00 EDT 1942 Feb 9 2:00s
1034 -5:00 Canada E%sT
--- 915 unchanged lines hidden ---
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> (1999-03-22):
9# A reliable and entertaining source about time zones is
--- 178 unchanged lines hidden (view full) ---
188# central standard time
189# mountain standard time
190# Pacific standard time
191# Alaska standard time
192# Hawaii-Aleutian standard time
193# Samoa standard time
194# The law doesn't give abbreviations.
195#
196# From Paul Eggert (1995-12-19):
197# Shanks uses 1983-10-30, not 1983-11-30, for the 1983 transitions.
198# Go with Shanks.
199#
200# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
201# Public law 106-564 (2000-12-23) introduced the abbreviation
202# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
203# See the file "australasia".
204
205
206# US eastern time, represented by New York
207
--- 15 unchanged lines hidden (view full) ---
223 -5:00 US E%sT 1920
224 -5:00 NYC E%sT 1942
225 -5:00 US E%sT 1946
226 -5:00 NYC E%sT 1967
227 -5:00 US E%sT
228
229# US central time, represented by Chicago
230
231# Alabama, Arkansas, Florida panhandle, Illinois, western Indiana
232# (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
233# Vanderburgh, and Warrick counties), Iowa, most of Kansas, western
234# Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern
235# Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota,
236# western Tennessee, most of Texas, Wisconsin
237
238# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
239Rule Chicago 1920 only - Jun 13 2:00 1:00 D
--- 13 unchanged lines hidden (view full) ---
253 -6:00 US C%sT
254# Oliver County, ND switched from mountain to central time on 1992-10-25.
255Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:00
256 -7:00 US M%sT 1992 Oct 25 02:00
257 -6:00 US C%sT
258
259# US mountain time, represented by Denver
260#
261# Colorado, southern Idaho, far western Kansas, Montana, western
262# Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),
263# New Mexico, southwestern North Dakota, far eastern Oregon,
264# western South Dakota, far western Texas (El Paso County, Hudspeth County,
265# and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming
266#
267# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
268Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
269Rule Denver 1920 only - Oct lastSun 2:00 0 S
--- 5 unchanged lines hidden (view full) ---
275 -7:00 US M%sT 1920
276 -7:00 Denver M%sT 1942
277 -7:00 US M%sT 1946
278 -7:00 Denver M%sT 1967
279 -7:00 US M%sT
280
281# US Pacific time, represented by Los Angeles
282#
283# California, northern Idaho, most of Nevada, most of Oregon, and Washington
284#
285# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
286Rule CA 1948 only - Mar 14 2:00 1:00 D
287Rule CA 1949 only - Jan 1 2:00 0 S
288Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D
289Rule CA 1950 1961 - Sep lastSun 2:00 0 S
290Rule CA 1962 1966 - Oct lastSun 2:00 0 S
291# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 22 unchanged lines hidden (view full) ---
314#
315# Zone NAME GMTOFF RULES FORMAT [UNTIL]
316Zone America/Juneau 15:02:19 - LMT 1867 Oct 18
317 -8:57:41 - LMT 1900 Aug 20 12:00
318 -8:00 - PST 1942
319 -8:00 US P%sT 1946
320 -8:00 - PST 1969
321 -8:00 US P%sT 1983 Oct 30 2:00
322 -9:00 US AK%sT
323Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
324 -9:18:55 - LMT 1900 Aug 20 12:00
325 -9:00 - YST 1942
326 -9:00 US Y%sT 1946
327 -9:00 - YST 1969
328 -9:00 US Y%sT 1983 Oct 30 2:00
329 -9:00 US AK%sT
330Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
331 -9:59:36 - LMT 1900 Aug 20 12:00
332 -10:00 - CAT 1942
333 -10:00 US CAT/CAWT 1946
334 -10:00 - CAT 1967 Apr
335 -10:00 - AHST 1969
336 -10:00 US AH%sT 1983 Oct 30 2:00
337 -9:00 US AK%sT
338Zone America/Nome 12:58:21 - LMT 1867 Oct 18
339 -11:01:38 - LMT 1900 Aug 20 12:00
340 -11:00 - NST 1942
341 -11:00 US N%sT 1946
342 -11:00 - NST 1967 Apr
343 -11:00 - BST 1969
344 -11:00 US B%sT 1983 Oct 30 2:00
345 -9:00 US AK%sT
346Zone America/Adak 12:13:21 - LMT 1867 Oct 18
347 -11:46:38 - LMT 1900 Aug 20 12:00
348 -11:00 - NST 1942
349 -11:00 US N%sT 1946
350 -11:00 - NST 1967 Apr
351 -11:00 - BST 1969
352 -11:00 US B%sT 1983 Oct 30 2:00
353 -10:00 US HA%sT
354# Shanks writes that part of southwest Alaska (e.g. Aniak)
355# switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
356# and another part (e.g. Akiak) made the same switch five weeks later.
357# These switches don't quite make our 1970 cutoff.
358
359# Hawaii
360#
--- 39 unchanged lines hidden (view full) ---
400 -7:00 US M%sT 1944 Jan 1 00:01
401 -7:00 - MST 1944 Apr 1 00:01
402 -7:00 US M%sT 1944 Oct 1 00:01
403 -7:00 - MST 1967
404 -7:00 US M%sT 1968 Mar 21
405 -7:00 - MST
406# From Arthur David Olson (1988-02-13):
407# A writer from the Inter Tribal Council of Arizona, Inc.,
408# notes in private correspondence dated 12/28/87 that "Presently, only the
409# Navajo Nation participates in the Daylight Saving Time policy, due to its
410# large size and location in three states." (The "only" means that other
411# tribal nations don't use DST.)
412
413Link America/Denver America/Shiprock
414
415# Southern Idaho and eastern Oregon switched four weeks late in 1974.
416# Zone NAME GMTOFF RULES FORMAT [UNTIL]
417Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00
418 -8:00 US P%sT 1923 May 13 2:00
419 -7:00 US M%sT 1974
420 -7:00 - MST 1974 Feb 3 2:00
421 -7:00 US M%sT
422
423# Indiana
--- 522 unchanged lines hidden (view full) ---
946Rule Mont 1919 only - Oct 25 2:30 0 S
947Rule Mont 1920 only - May 2 2:30 1:00 D
948Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
949Rule Mont 1921 only - May 1 2:00 1:00 D
950Rule Mont 1922 only - Apr 30 2:00 1:00 D
951Rule Mont 1924 only - May 17 2:00 1:00 D
952Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
953Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
954Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
955Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
956Rule Mont 1938 1940 - Apr lastSun 0:00 1:00 D
957Rule Mont 1938 1939 - Sep lastSun 0:00 0 S
958Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
959Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
960Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
961Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
962Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
963
964Rule Toronto 1919 only - Mar 30 23:30 1:00 D
965Rule Toronto 1919 only - Oct 26 0:00 0 S
966Rule Toronto 1920 only - May 2 2:00 1:00 D
967Rule Toronto 1920 only - Sep 26 0:00 0 S
968Rule Toronto 1921 only - May 15 2:00 1:00 D
969Rule Toronto 1921 only - Sep 15 2:00 0 S
970Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D
971# Shanks says 1923-09-19; assume it's a typo and that "-16" was meant.
972Rule Toronto 1922 1926 - Sep Sun>=15 2:00 0 S
973Rule Toronto 1924 1927 - May Sun>=1 2:00 1:00 D
974Rule Toronto 1927 1928 - Sep lastSun 2:00 0 S
975Rule Toronto 1928 only - Apr lastSun 2:00 1:00 D
976Rule Toronto 1929 only - Apr lastSun 0:00 1:00 D
977Rule Toronto 1929 only - Sep lastSun 0:00 0 S
978Rule Toronto 1930 1937 - Apr lastSat 24:00 1:00 D
979Rule Toronto 1930 1937 - Sep lastSat 24:00 0 S
980Rule Toronto 1938 1940 - Apr lastSun 0:00 1:00 D
981Rule Toronto 1938 1939 - Sep lastSun 0:00 0 S
982Rule Toronto 1945 1946 - Sep lastSun 2:00 0 S
983Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D
984Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D
985Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S
986Rule Toronto 1949 only - Nov lastSun 0:00 0 S
987Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D
988Rule Toronto 1950 only - Nov lastSun 2:00 0 S
989Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S
990# Shanks says Toronto ended DST a week early in 1971, namely on 1971-10-24,
991# but Mark Brader wrote (2003-05-31) that he checked the 1971-10-30 issue
992# of the Toronto Star, and it said that DST ended 1971-10-31 as usual.
993Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S
994
995# From Paul Eggert (2003-07-27):
996# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
997# Port Arthur, Ontario, the principle of the Bill has been in
998# operation for the past three years, and in the City of Moose Jaw,
999# Saskatchewan, for one year." Assume that the Thunder Bay region
1000# observed DST starting 1910, and Moose Jaw starting 1912, as this
1001# matches the Toronto Star report about Moose Jaw. For lack of better
1002# info, assume the Thunder Bay region used Willett's proposal, namely
1003# third Sunday in April at 02:00 to third Sunday in September at
1004# 03:00; also assume that they continued until Canada instituted
1005# uniform DST in 1918.
1006Rule Thunder 1910 1917 - Apr Sun>=15 2:00s 1:00 D
1007Rule Thunder 1910 1917 - Sep Sun>=15 2:00s 0 S
1008
1009# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1010Zone America/Montreal -4:54:16 - LMT 1884
1011 -5:00 Mont E%sT 1918
1012 -5:00 Canada E%sT 1919
1013 -5:00 Mont E%sT 1942 Feb 9 2:00s
1014 -5:00 Canada E%sT 1946
1015 -5:00 Mont E%sT 1974
1016 -5:00 Canada E%sT
1017Zone America/Toronto -5:17:32 - LMT 1895
1018 -5:00 Canada E%sT 1919
1019 -5:00 Toronto E%sT 1942 Feb 9 2:00s
1020 -5:00 Canada E%sT 1946
1021 -5:00 Toronto E%sT 1974
1022 -5:00 Canada E%sT
1023Zone America/Thunder_Bay -5:57:00 - LMT 1895
1024 -5:00 Thunder E%sT 1918
1025 -5:00 Canada E%sT 1940 Sep 29
1026 -5:00 1:00 EDT 1942 Feb 9 2:00s
1027 -5:00 Canada E%sT 1970
1028 -5:00 Mont E%sT 1973
1029 -5:00 - EST 1974
1030 -5:00 Canada E%sT
1031Zone America/Nipigon -5:53:04 - LMT 1895
1032 -5:00 Canada E%sT 1940 Sep 29
1033 -5:00 1:00 EDT 1942 Feb 9 2:00s
1034 -5:00 Canada E%sT
--- 915 unchanged lines hidden ---