1# @(#)northamerica 7.69
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 (2000-01-08), following a heads-up from Rives McDow:
197# Public law 106-564 (2000-12-23) introduced the abbreviation
198# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
199# See the file "australasia".
200
201
202# US eastern time, represented by New York
203
--- 15 unchanged lines hidden (view full) ---
219 -5:00 US E%sT 1920
220 -5:00 NYC E%sT 1942
221 -5:00 US E%sT 1946
222 -5:00 NYC E%sT 1967
223 -5:00 US E%sT
224
225# US central time, represented by Chicago
226
227# Alabama, Arkansas, Florida panhandle (Bay, Calhoun, Escambia,
228# Gulf, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and
229# Washington counties), Illinois, western Indiana
230# (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
231# Vanderburgh, and Warrick counties), Iowa, most of Kansas, western
232# Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern
233# Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota,
234# western Tennessee, most of Texas, Wisconsin
235
236# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
237Rule Chicago 1920 only - Jun 13 2:00 1:00 D
--- 13 unchanged lines hidden (view full) ---
251 -6:00 US C%sT
252# Oliver County, ND switched from mountain to central time on 1992-10-25.
253Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:00
254 -7:00 US M%sT 1992 Oct 25 02:00
255 -6:00 US C%sT
256
257# US mountain time, represented by Denver
258#
259# Colorado, far western Kansas, Montana, western
260# Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),
261# New Mexico, southwestern North Dakota, far eastern Oregon,
262# western South Dakota, far western Texas (El Paso County, Hudspeth County,
263# and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming
264#
265# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
266Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
267Rule Denver 1920 only - Oct lastSun 2:00 0 S
--- 5 unchanged lines hidden (view full) ---
273 -7:00 US M%sT 1920
274 -7:00 Denver M%sT 1942
275 -7:00 US M%sT 1946
276 -7:00 Denver M%sT 1967
277 -7:00 US M%sT
278
279# US Pacific time, represented by Los Angeles
280#
281# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
282# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties),
283# 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 Y%sT 1983 Nov 30
323 -9:00 US AK%sT
324Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
325 -9:18:55 - LMT 1900 Aug 20 12:00
326 -9:00 - YST 1942
327 -9:00 US Y%sT 1946
328 -9:00 - YST 1969
329 -9:00 US Y%sT 1983 Nov 30
330 -9:00 US AK%sT
331Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
332 -9:59:36 - LMT 1900 Aug 20 12:00
333 -10:00 - CAT 1942
334 -10:00 US CAT/CAWT 1946
335 -10:00 - CAT 1967 Apr
336 -10:00 - AHST 1969
337 -10:00 US AH%sT 1983 Oct 30 2:00
338 -9:00 US Y%sT 1983 Nov 30
339 -9:00 US AK%sT
340Zone America/Nome 12:58:21 - LMT 1867 Oct 18
341 -11:01:38 - LMT 1900 Aug 20 12:00
342 -11:00 - NST 1942
343 -11:00 US N%sT 1946
344 -11:00 - NST 1967 Apr
345 -11:00 - BST 1969
346 -11:00 US B%sT 1983 Oct 30 2:00
347 -9:00 US Y%sT 1983 Nov 30
348 -9:00 US AK%sT
349Zone America/Adak 12:13:21 - LMT 1867 Oct 18
350 -11:46:38 - LMT 1900 Aug 20 12:00
351 -11:00 - NST 1942
352 -11:00 US N%sT 1946
353 -11:00 - NST 1967 Apr
354 -11:00 - BST 1969
355 -11:00 US B%sT 1983 Oct 30 2:00
356 -10:00 US AH%sT 1983 Nov 30
357 -10:00 US HA%sT
358# Shanks writes that part of southwest Alaska (e.g. Aniak)
359# switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
360# and another part (e.g. Akiak) made the same switch five weeks later.
361# These switches don't quite make our 1970 cutoff.
362
363# Hawaii
364#
--- 39 unchanged lines hidden (view full) ---
404 -7:00 US M%sT 1944 Jan 1 00:01
405 -7:00 - MST 1944 Apr 1 00:01
406 -7:00 US M%sT 1944 Oct 1 00:01
407 -7:00 - MST 1967
408 -7:00 US M%sT 1968 Mar 21
409 -7:00 - MST
410# From Arthur David Olson (1988-02-13):
411# A writer from the Inter Tribal Council of Arizona, Inc.,
412# notes in private correspondence dated 1987-12-28 that "Presently, only the
413# Navajo Nation participates in the Daylight Saving Time policy, due to its
414# large size and location in three states." (The "only" means that other
415# tribal nations don't use DST.)
416
417Link America/Denver America/Shiprock
418
419# Southern Idaho (Ada, Adams, Bannock, Bear Lake, Bingham, Blaine,
420# Boise, Bonneville, Butte, Camas, Canyon, Caribou, Cassia, Clark,
421# Custer, Elmore, Franklin, Fremont, Gem, Gooding, Jefferson, Jerome,
422# Lemhi, Lincoln, Madison, Minidoka, Oneida, Owyhee, Payette, Power,
423# Teton, Twin Falls, Valley, Washington counties) and eastern Oregon
424# switched four weeks late in 1974.
425#
426# Zone NAME GMTOFF RULES FORMAT [UNTIL]
427Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00
428 -8:00 US P%sT 1923 May 13 2:00
429 -7:00 US M%sT 1974
430 -7:00 - MST 1974 Feb 3 2:00
431 -7:00 US M%sT
432
433# Indiana
--- 522 unchanged lines hidden (view full) ---
956Rule Mont 1919 only - Oct 25 2:30 0 S
957Rule Mont 1920 only - May 2 2:30 1:00 D
958Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
959Rule Mont 1921 only - May 1 2:00 1:00 D
960Rule Mont 1922 only - Apr 30 2:00 1:00 D
961Rule Mont 1924 only - May 17 2:00 1:00 D
962Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
963Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
964# The 1927-to-1937 rules can be expressed more simply as
965# Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
966# Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
967# The rules below avoid use of 24:00
968# (which pre-1998 versions of zic cannot handle).
969Rule Mont 1927 only - May 1 0:00 1:00 D
970Rule Mont 1927 1932 - Sep lastSun 0:00 0 S
971Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D
972Rule Mont 1932 only - May 1 0:00 1:00 D
973Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D
974Rule Mont 1933 only - Oct 1 0:00 0 S
975Rule Mont 1934 1939 - Sep lastSun 0:00 0 S
976Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
977Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
978Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
979Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
980Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
981
982Rule Toronto 1919 only - Mar 30 23:30 1:00 D
983Rule Toronto 1919 only - Oct 26 0:00 0 S
984Rule Toronto 1920 only - May 2 2:00 1:00 D
985Rule Toronto 1920 only - Sep 26 0:00 0 S
986Rule Toronto 1921 only - May 15 2:00 1:00 D
987Rule Toronto 1921 only - Sep 15 2:00 0 S
988Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D
989# Shanks says 1923-09-19; assume it's a typo and that "-16" was meant.
990Rule Toronto 1922 1926 - Sep Sun>=15 2:00 0 S
991Rule Toronto 1924 1927 - May Sun>=1 2:00 1:00 D
992# The 1927-to-1939 rules can be expressed more simply as
993# Rule Toronto 1927 1937 - Sep Sun>=25 2:00 0 S
994# Rule Toronto 1928 1937 - Apr Sun>=25 2:00 1:00 D
995# Rule Toronto 1938 1940 - Apr lastSun 2:00 1:00 D
996# Rule Toronto 1938 1939 - Sep lastSun 2:00 0 S
997# The rules below avoid use of Sun>=25
998# (which pre-2004 versions of zic cannot handle).
999Rule Toronto 1927 1932 - Sep lastSun 2:00 0 S
1000Rule Toronto 1928 1931 - Apr lastSun 2:00 1:00 D
1001Rule Toronto 1932 only - May 1 2:00 1:00 D
1002Rule Toronto 1933 1940 - Apr lastSun 2:00 1:00 D
1003Rule Toronto 1933 only - Oct 1 2:00 0 S
1004Rule Toronto 1934 1939 - Sep lastSun 2:00 0 S
1005Rule Toronto 1945 1946 - Sep lastSun 2:00 0 S
1006Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D
1007Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D
1008Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S
1009Rule Toronto 1949 only - Nov lastSun 0:00 0 S
1010Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D
1011Rule Toronto 1950 only - Nov lastSun 2:00 0 S
1012Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S
1013# Shanks says Toronto ended DST a week early in 1971, namely on 1971-10-24,
1014# but Mark Brader wrote (2003-05-31) that he checked the 1971-10-30 issue
1015# of the Toronto Star, and it said that DST ended 1971-10-31 as usual.
1016Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S
1017
1018# From Paul Eggert (2003-07-27):
1019# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
1020# Port Arthur, Ontario, the principle of the Bill has been in
1021# operation for the past three years, and in the City of Moose Jaw,
1022# Saskatchewan, for one year."
1023
1024# From David Bryan via Tory Tronrud, Director/Curator,
1025# Thunder Bay Museum (2003-11-12):
1026# There is some suggestion, however, that, by-law or not, daylight
1027# savings time was being practiced in Fort William and Port Arthur
1028# before 1909.... [I]n 1910, the line between the Eastern and Central
1029# Time Zones was permanently moved about two hundred miles west to
1030# include the Thunder Bay area.... When Canada adopted daylight
1031# savings time in 1916, Fort William and Port Arthur, having done so
1032# already, did not change their clocks.... During the Second World
1033# War,... [t]he cities agreed to implement DST during the summer
1034# months for the remainder of the war years.
1035
1036# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1037Zone America/Montreal -4:54:16 - LMT 1884
1038 -5:00 Mont E%sT 1918
1039 -5:00 Canada E%sT 1919
1040 -5:00 Mont E%sT 1942 Feb 9 2:00s
1041 -5:00 Canada E%sT 1946
1042 -5:00 Mont E%sT 1974
1043 -5:00 Canada E%sT
1044Zone America/Toronto -5:17:32 - LMT 1895
1045 -5:00 Canada E%sT 1919
1046 -5:00 Toronto E%sT 1942 Feb 9 2:00s
1047 -5:00 Canada E%sT 1946
1048 -5:00 Toronto E%sT 1974
1049 -5:00 Canada E%sT
1050Zone America/Thunder_Bay -5:57:00 - LMT 1895
1051 -6:00 - CST 1910
1052 -5:00 - EST 1942
1053 -5:00 Canada E%sT 1970
1054 -5:00 Mont E%sT 1973
1055 -5:00 - EST 1974
1056 -5:00 Canada E%sT
1057Zone America/Nipigon -5:53:04 - LMT 1895
1058 -5:00 Canada E%sT 1940 Sep 29
1059 -5:00 1:00 EDT 1942 Feb 9 2:00s
1060 -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 (2000-01-08), following a heads-up from Rives McDow:
197# Public law 106-564 (2000-12-23) introduced the abbreviation
198# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
199# See the file "australasia".
200
201
202# US eastern time, represented by New York
203
--- 15 unchanged lines hidden (view full) ---
219 -5:00 US E%sT 1920
220 -5:00 NYC E%sT 1942
221 -5:00 US E%sT 1946
222 -5:00 NYC E%sT 1967
223 -5:00 US E%sT
224
225# US central time, represented by Chicago
226
227# Alabama, Arkansas, Florida panhandle (Bay, Calhoun, Escambia,
228# Gulf, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and
229# Washington counties), Illinois, western Indiana
230# (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
231# Vanderburgh, and Warrick counties), Iowa, most of Kansas, western
232# Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern
233# Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota,
234# western Tennessee, most of Texas, Wisconsin
235
236# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
237Rule Chicago 1920 only - Jun 13 2:00 1:00 D
--- 13 unchanged lines hidden (view full) ---
251 -6:00 US C%sT
252# Oliver County, ND switched from mountain to central time on 1992-10-25.
253Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:00
254 -7:00 US M%sT 1992 Oct 25 02:00
255 -6:00 US C%sT
256
257# US mountain time, represented by Denver
258#
259# Colorado, far western Kansas, Montana, western
260# Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),
261# New Mexico, southwestern North Dakota, far eastern Oregon,
262# western South Dakota, far western Texas (El Paso County, Hudspeth County,
263# and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming
264#
265# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
266Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
267Rule Denver 1920 only - Oct lastSun 2:00 0 S
--- 5 unchanged lines hidden (view full) ---
273 -7:00 US M%sT 1920
274 -7:00 Denver M%sT 1942
275 -7:00 US M%sT 1946
276 -7:00 Denver M%sT 1967
277 -7:00 US M%sT
278
279# US Pacific time, represented by Los Angeles
280#
281# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
282# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties),
283# 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 Y%sT 1983 Nov 30
323 -9:00 US AK%sT
324Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
325 -9:18:55 - LMT 1900 Aug 20 12:00
326 -9:00 - YST 1942
327 -9:00 US Y%sT 1946
328 -9:00 - YST 1969
329 -9:00 US Y%sT 1983 Nov 30
330 -9:00 US AK%sT
331Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
332 -9:59:36 - LMT 1900 Aug 20 12:00
333 -10:00 - CAT 1942
334 -10:00 US CAT/CAWT 1946
335 -10:00 - CAT 1967 Apr
336 -10:00 - AHST 1969
337 -10:00 US AH%sT 1983 Oct 30 2:00
338 -9:00 US Y%sT 1983 Nov 30
339 -9:00 US AK%sT
340Zone America/Nome 12:58:21 - LMT 1867 Oct 18
341 -11:01:38 - LMT 1900 Aug 20 12:00
342 -11:00 - NST 1942
343 -11:00 US N%sT 1946
344 -11:00 - NST 1967 Apr
345 -11:00 - BST 1969
346 -11:00 US B%sT 1983 Oct 30 2:00
347 -9:00 US Y%sT 1983 Nov 30
348 -9:00 US AK%sT
349Zone America/Adak 12:13:21 - LMT 1867 Oct 18
350 -11:46:38 - LMT 1900 Aug 20 12:00
351 -11:00 - NST 1942
352 -11:00 US N%sT 1946
353 -11:00 - NST 1967 Apr
354 -11:00 - BST 1969
355 -11:00 US B%sT 1983 Oct 30 2:00
356 -10:00 US AH%sT 1983 Nov 30
357 -10:00 US HA%sT
358# Shanks writes that part of southwest Alaska (e.g. Aniak)
359# switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
360# and another part (e.g. Akiak) made the same switch five weeks later.
361# These switches don't quite make our 1970 cutoff.
362
363# Hawaii
364#
--- 39 unchanged lines hidden (view full) ---
404 -7:00 US M%sT 1944 Jan 1 00:01
405 -7:00 - MST 1944 Apr 1 00:01
406 -7:00 US M%sT 1944 Oct 1 00:01
407 -7:00 - MST 1967
408 -7:00 US M%sT 1968 Mar 21
409 -7:00 - MST
410# From Arthur David Olson (1988-02-13):
411# A writer from the Inter Tribal Council of Arizona, Inc.,
412# notes in private correspondence dated 1987-12-28 that "Presently, only the
413# Navajo Nation participates in the Daylight Saving Time policy, due to its
414# large size and location in three states." (The "only" means that other
415# tribal nations don't use DST.)
416
417Link America/Denver America/Shiprock
418
419# Southern Idaho (Ada, Adams, Bannock, Bear Lake, Bingham, Blaine,
420# Boise, Bonneville, Butte, Camas, Canyon, Caribou, Cassia, Clark,
421# Custer, Elmore, Franklin, Fremont, Gem, Gooding, Jefferson, Jerome,
422# Lemhi, Lincoln, Madison, Minidoka, Oneida, Owyhee, Payette, Power,
423# Teton, Twin Falls, Valley, Washington counties) and eastern Oregon
424# switched four weeks late in 1974.
425#
426# Zone NAME GMTOFF RULES FORMAT [UNTIL]
427Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00
428 -8:00 US P%sT 1923 May 13 2:00
429 -7:00 US M%sT 1974
430 -7:00 - MST 1974 Feb 3 2:00
431 -7:00 US M%sT
432
433# Indiana
--- 522 unchanged lines hidden (view full) ---
956Rule Mont 1919 only - Oct 25 2:30 0 S
957Rule Mont 1920 only - May 2 2:30 1:00 D
958Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
959Rule Mont 1921 only - May 1 2:00 1:00 D
960Rule Mont 1922 only - Apr 30 2:00 1:00 D
961Rule Mont 1924 only - May 17 2:00 1:00 D
962Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
963Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
964# The 1927-to-1937 rules can be expressed more simply as
965# Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
966# Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
967# The rules below avoid use of 24:00
968# (which pre-1998 versions of zic cannot handle).
969Rule Mont 1927 only - May 1 0:00 1:00 D
970Rule Mont 1927 1932 - Sep lastSun 0:00 0 S
971Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D
972Rule Mont 1932 only - May 1 0:00 1:00 D
973Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D
974Rule Mont 1933 only - Oct 1 0:00 0 S
975Rule Mont 1934 1939 - Sep lastSun 0:00 0 S
976Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
977Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
978Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
979Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
980Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
981
982Rule Toronto 1919 only - Mar 30 23:30 1:00 D
983Rule Toronto 1919 only - Oct 26 0:00 0 S
984Rule Toronto 1920 only - May 2 2:00 1:00 D
985Rule Toronto 1920 only - Sep 26 0:00 0 S
986Rule Toronto 1921 only - May 15 2:00 1:00 D
987Rule Toronto 1921 only - Sep 15 2:00 0 S
988Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D
989# Shanks says 1923-09-19; assume it's a typo and that "-16" was meant.
990Rule Toronto 1922 1926 - Sep Sun>=15 2:00 0 S
991Rule Toronto 1924 1927 - May Sun>=1 2:00 1:00 D
992# The 1927-to-1939 rules can be expressed more simply as
993# Rule Toronto 1927 1937 - Sep Sun>=25 2:00 0 S
994# Rule Toronto 1928 1937 - Apr Sun>=25 2:00 1:00 D
995# Rule Toronto 1938 1940 - Apr lastSun 2:00 1:00 D
996# Rule Toronto 1938 1939 - Sep lastSun 2:00 0 S
997# The rules below avoid use of Sun>=25
998# (which pre-2004 versions of zic cannot handle).
999Rule Toronto 1927 1932 - Sep lastSun 2:00 0 S
1000Rule Toronto 1928 1931 - Apr lastSun 2:00 1:00 D
1001Rule Toronto 1932 only - May 1 2:00 1:00 D
1002Rule Toronto 1933 1940 - Apr lastSun 2:00 1:00 D
1003Rule Toronto 1933 only - Oct 1 2:00 0 S
1004Rule Toronto 1934 1939 - Sep lastSun 2:00 0 S
1005Rule Toronto 1945 1946 - Sep lastSun 2:00 0 S
1006Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D
1007Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D
1008Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S
1009Rule Toronto 1949 only - Nov lastSun 0:00 0 S
1010Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D
1011Rule Toronto 1950 only - Nov lastSun 2:00 0 S
1012Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S
1013# Shanks says Toronto ended DST a week early in 1971, namely on 1971-10-24,
1014# but Mark Brader wrote (2003-05-31) that he checked the 1971-10-30 issue
1015# of the Toronto Star, and it said that DST ended 1971-10-31 as usual.
1016Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S
1017
1018# From Paul Eggert (2003-07-27):
1019# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
1020# Port Arthur, Ontario, the principle of the Bill has been in
1021# operation for the past three years, and in the City of Moose Jaw,
1022# Saskatchewan, for one year."
1023
1024# From David Bryan via Tory Tronrud, Director/Curator,
1025# Thunder Bay Museum (2003-11-12):
1026# There is some suggestion, however, that, by-law or not, daylight
1027# savings time was being practiced in Fort William and Port Arthur
1028# before 1909.... [I]n 1910, the line between the Eastern and Central
1029# Time Zones was permanently moved about two hundred miles west to
1030# include the Thunder Bay area.... When Canada adopted daylight
1031# savings time in 1916, Fort William and Port Arthur, having done so
1032# already, did not change their clocks.... During the Second World
1033# War,... [t]he cities agreed to implement DST during the summer
1034# months for the remainder of the war years.
1035
1036# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1037Zone America/Montreal -4:54:16 - LMT 1884
1038 -5:00 Mont E%sT 1918
1039 -5:00 Canada E%sT 1919
1040 -5:00 Mont E%sT 1942 Feb 9 2:00s
1041 -5:00 Canada E%sT 1946
1042 -5:00 Mont E%sT 1974
1043 -5:00 Canada E%sT
1044Zone America/Toronto -5:17:32 - LMT 1895
1045 -5:00 Canada E%sT 1919
1046 -5:00 Toronto E%sT 1942 Feb 9 2:00s
1047 -5:00 Canada E%sT 1946
1048 -5:00 Toronto E%sT 1974
1049 -5:00 Canada E%sT
1050Zone America/Thunder_Bay -5:57:00 - LMT 1895
1051 -6:00 - CST 1910
1052 -5:00 - EST 1942
1053 -5:00 Canada E%sT 1970
1054 -5:00 Mont E%sT 1973
1055 -5:00 - EST 1974
1056 -5:00 Canada E%sT
1057Zone America/Nipigon -5:53:04 - LMT 1895
1058 -5:00 Canada E%sT 1940 Sep 29
1059 -5:00 1:00 EDT 1942 Feb 9 2:00s
1060 -5:00 Canada E%sT
--- 915 unchanged lines hidden ---