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1# @(#)northamerica 8.6
1# @(#)northamerica 8.9
2# <pre>
3
4# also includes Central America and the Caribbean
5
6# This data is by no means authoritative; if you think you know better,
7# go ahead and edit the file (and please send any changes to
8# tz@elsie.nci.nih.gov for general use in the future).
9

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895# & Pottenger.
896
897# From Chris Walton (2006-04-01):
898# The British Columbia government announced yesterday that it will
899# adjust daylight savings next year to align with changes in the
900# U.S. and the rest of Canada....
901# http://www2.news.gov.bc.ca/news_releases_2005-2009/2006AG0014-000330.htm
902
2# <pre>
3
4# also includes Central America and the Caribbean
5
6# This data is by no means authoritative; if you think you know better,
7# go ahead and edit the file (and please send any changes to
8# tz@elsie.nci.nih.gov for general use in the future).
9

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895# & Pottenger.
896
897# From Chris Walton (2006-04-01):
898# The British Columbia government announced yesterday that it will
899# adjust daylight savings next year to align with changes in the
900# U.S. and the rest of Canada....
901# http://www2.news.gov.bc.ca/news_releases_2005-2009/2006AG0014-000330.htm
902
903# From Chris Walton (2006-04-25):
904# Daylight saving time will be extended by four weeks starting in 2007....
905# Here is a news release which was issued today by the Nova Scotia government:
906# http://www.gov.ns.ca/news/details.asp?id=20060425004
907
908# From Chris Walton (2006-06-26):
909# [For New Brunswick] the new legislation dictates that the time change is to
910# be done at 02:00 instead of 00:01.
911# http://www.gnb.ca/0062/acts/BBA-2006/Chap-19.pdf
912# ...
913# Manitoba has traditionally changed the clock every fall at 03:00.
914# As of 2006, the transition is to take place one hour earlier at 02:00.
915# http://web2.gov.mb.ca/laws/statutes/ccsm/o030e.php
916# ...
917# [Alberta, Ontario, Quebec] will follow US rules.
918# http://www.qp.gov.ab.ca/documents/Acts/2006CH03_UNPR.cfm?frm_isbn=0779744934
919# http://www.e-laws.gov.on.ca/DBLaws/Source/Regs/English/2006/R06111_e.htm
920# http://www.assnat.qc.ca/eng/37legislature2/Projets-loi/Publics/06-a002.htm
921# ...
922# P.E.I. will follow US rules. The new legislation is not law yet.
923# It passed first reading on April 20....
924# http://www.assembly.pe.ca/bills/pdf_first/62/3/bill-101.pdf
925# ...
926# Province of Newfoundland and Labrador.... The change is being considered.
927# http://www.releases.gov.nl.ca/releases/2006/mpa/0331n01.htm
928# ...
929# N.W.T. will follow US rules. Whoever maintains the government web site
930# does not seem to believe in bookmarks. To see the news release, click the
931# following link and search for "Daylight Savings Time Change". Press the
932# "Daylight Savings Time Change" link; it will fire off a popup using
933# JavaScript.
934# http://www.exec.gov.nt.ca/currentnews/currentPR.asp?mode=archive
935
936
937
903# From Paul Eggert (2006-04-25):
904# H. David Matthews and Mary Vincent's map
905# <a href="http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp">
906# "It's about TIME", _Canadian Geographic_ (September-October 1998)
907# </a> contains detailed boundaries for regions observing nonstandard
908# time and daylight saving time arrangements in Canada circa 1998.
909#
910# INMS, the Institute for National Measurement Standards in Ottawa, has <a
911# href="http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php">
912# information about standard and daylight saving time zones in Canada.
913# </a> (updated periodically).
914# Its unofficial information is often taken from Matthews and Vincent.
938# From Paul Eggert (2006-04-25):
939# H. David Matthews and Mary Vincent's map
940# <a href="http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp">
941# "It's about TIME", _Canadian Geographic_ (September-October 1998)
942# </a> contains detailed boundaries for regions observing nonstandard
943# time and daylight saving time arrangements in Canada circa 1998.
944#
945# INMS, the Institute for National Measurement Standards in Ottawa, has <a
946# href="http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php">
947# information about standard and daylight saving time zones in Canada.
948# </a> (updated periodically).
949# Its unofficial information is often taken from Matthews and Vincent.
915#
916# CBC News reported that Ontario and Manitoba have announced plans to
917# follow the US change; see
918# <http://www.cbc.ca/news/background/daylightsavingtime/> (2005-10-21).
919# CBC news also reported that Prince Edward Island is the first
920# province in Atlantic Canada to follow the US change, and that Quebec
921# had agreed; see <http://www.cbc.ca/pei/story/pe_daylight_20051207.html>
922# (2005-12-07). It also reported that Alberta will fall into line; see
923# <http://www.cbc.ca/calgary/story/ca_daylight20060202.html> (2006-02-02).
924# For now, assume all of Canada will fall into line.
925
950
951# From Paul Eggert (2006-06-27):
952# For now, assume all of DST-observing Canada will fall into line with the
953# new US DST rules,
954
926# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
927Rule Canada 1918 only - Apr 14 2:00 1:00 D
928Rule Canada 1918 only - Oct 31 2:00 0 S
929Rule Canada 1942 only - Feb 9 2:00 1:00 W # War
930Rule Canada 1945 only - Aug 14 23:00u 1:00 P # Peace
931Rule Canada 1945 only - Sep 30 2:00 0 S
932Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D
933Rule Canada 1974 2006 - Oct lastSun 2:00 0 S
934Rule Canada 1987 2006 - Apr Sun>=1 2:00 1:00 D
935Rule Canada 2007 max - Mar Sun>=8 2:00 1:00 D
936Rule Canada 2007 max - Nov Sun>=1 2:00 0 S
937
938
955# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
956Rule Canada 1918 only - Apr 14 2:00 1:00 D
957Rule Canada 1918 only - Oct 31 2:00 0 S
958Rule Canada 1942 only - Feb 9 2:00 1:00 W # War
959Rule Canada 1945 only - Aug 14 23:00u 1:00 P # Peace
960Rule Canada 1945 only - Sep 30 2:00 0 S
961Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D
962Rule Canada 1974 2006 - Oct lastSun 2:00 0 S
963Rule Canada 1987 2006 - Apr Sun>=1 2:00 1:00 D
964Rule Canada 2007 max - Mar Sun>=8 2:00 1:00 D
965Rule Canada 2007 max - Nov Sun>=1 2:00 0 S
966
967
939# Newfoundland (and far southeast Labrador)
968# Newfoundland and Labrador
940
941# From Paul Eggert (2000-10-02):
942# Matthews and Vincent (1998) write that Labrador should use NST/NDT,
943# but the only part of Labrador that follows the rules is the
944# southeast corner, including Port Hope Simpson and Mary's Harbour,
945# but excluding, say, Black Tickle.
946
947# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S

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969Rule StJohns 1960 1986 - Oct lastSun 2:00 0 S
970# From Paul Eggert (2000-10-02):
971# INMS (2000-09-12) says that, since 1988 at least, Newfoundland switches
972# at 00:01 local time. For now, assume it started in 1987.
973Rule StJohns 1987 only - Apr Sun>=1 0:01 1:00 D
974Rule StJohns 1987 2006 - Oct lastSun 0:01 0 S
975Rule StJohns 1988 only - Apr Sun>=1 0:01 2:00 DD
976Rule StJohns 1989 2006 - Apr Sun>=1 0:01 1:00 D
969
970# From Paul Eggert (2000-10-02):
971# Matthews and Vincent (1998) write that Labrador should use NST/NDT,
972# but the only part of Labrador that follows the rules is the
973# southeast corner, including Port Hope Simpson and Mary's Harbour,
974# but excluding, say, Black Tickle.
975
976# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S

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998Rule StJohns 1960 1986 - Oct lastSun 2:00 0 S
999# From Paul Eggert (2000-10-02):
1000# INMS (2000-09-12) says that, since 1988 at least, Newfoundland switches
1001# at 00:01 local time. For now, assume it started in 1987.
1002Rule StJohns 1987 only - Apr Sun>=1 0:01 1:00 D
1003Rule StJohns 1987 2006 - Oct lastSun 0:01 0 S
1004Rule StJohns 1988 only - Apr Sun>=1 0:01 2:00 DD
1005Rule StJohns 1989 2006 - Apr Sun>=1 0:01 1:00 D
977# From Chris Walton (2006-04-05):
978# http://www.releases.gov.nl.ca/releases/2006/mpa/0331n01.htm
979# [This says Newfoundlandland expects to follow step with the US.]
980Rule StJohns 2007 max - Mar Sun>=8 0:01 1:00 D
981Rule StJohns 2007 max - Nov Sun>=1 0:01 0 S
982#
983# St John's has an apostrophe, but Posix file names can't have apostrophes.
984# Zone NAME GMTOFF RULES FORMAT [UNTIL]
985Zone America/St_Johns -3:30:52 - LMT 1884
986 -3:30:52 StJohns N%sT 1918
987 -3:30:52 Canada N%sT 1919

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1010# From Paul Eggert (2006-03-22):
1011# Shanks & Pottenger write that since 1970 most of this region has been like
1012# Halifax. Many locales did not observe peacetime DST until 1972;
1013# Glace Bay, NS is the largest that we know of.
1014# Shanks & Pottenger also write that Liverpool, NS was the only town
1015# in Canada to observe DST in 1971 but not 1970; for now we'll assume
1016# this is a typo.
1017
1006Rule StJohns 2007 max - Mar Sun>=8 0:01 1:00 D
1007Rule StJohns 2007 max - Nov Sun>=1 0:01 0 S
1008#
1009# St John's has an apostrophe, but Posix file names can't have apostrophes.
1010# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1011Zone America/St_Johns -3:30:52 - LMT 1884
1012 -3:30:52 StJohns N%sT 1918
1013 -3:30:52 Canada N%sT 1919

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1036# From Paul Eggert (2006-03-22):
1037# Shanks & Pottenger write that since 1970 most of this region has been like
1038# Halifax. Many locales did not observe peacetime DST until 1972;
1039# Glace Bay, NS is the largest that we know of.
1040# Shanks & Pottenger also write that Liverpool, NS was the only town
1041# in Canada to observe DST in 1971 but not 1970; for now we'll assume
1042# this is a typo.
1043
1018# From Chris Walton (2006-04-25):
1019# Daylight saving time will be extended by four weeks starting in 2007....
1020# Here is a news release which was issued today by the Nova Scotia government:
1021# http://www.gov.ns.ca/news/details.asp?id=20060425004
1022
1023# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1024Rule Halifax 1916 only - Apr 1 0:00 1:00 D
1025Rule Halifax 1916 only - Oct 1 0:00 0 S
1026Rule Halifax 1920 only - May 9 0:00 1:00 D
1027Rule Halifax 1920 only - Aug 29 0:00 0 S
1028Rule Halifax 1921 only - May 6 0:00 1:00 D
1029Rule Halifax 1921 1922 - Sep 5 0:00 0 S
1030Rule Halifax 1922 only - Apr 30 0:00 1:00 D

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1079
1080# New Brunswick
1081
1082# From Paul Eggert (2006-01-20):
1083# New Brunswick's Time Definition Act
1084# <http://www.gnb.ca/0062/PDF-acts/t-06.pdf> says they change at 00:01, and
1085# <http://www.canlii.org/nb/laws/sta/t-6/20030127/whole.html> makes it
1086# clear that this has been the case since at least 1993.
1044# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1045Rule Halifax 1916 only - Apr 1 0:00 1:00 D
1046Rule Halifax 1916 only - Oct 1 0:00 0 S
1047Rule Halifax 1920 only - May 9 0:00 1:00 D
1048Rule Halifax 1920 only - Aug 29 0:00 0 S
1049Rule Halifax 1921 only - May 6 0:00 1:00 D
1050Rule Halifax 1921 1922 - Sep 5 0:00 0 S
1051Rule Halifax 1922 only - Apr 30 0:00 1:00 D

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1100
1101# New Brunswick
1102
1103# From Paul Eggert (2006-01-20):
1104# New Brunswick's Time Definition Act
1105# <http://www.gnb.ca/0062/PDF-acts/t-06.pdf> says they change at 00:01, and
1106# <http://www.canlii.org/nb/laws/sta/t-6/20030127/whole.html> makes it
1107# clear that this has been the case since at least 1993.
1087# For now, assume it started in 1993. The Office of the Premier announced
1088# <http://www.gnb.ca/cnb/news/pre/2005e1737pr.htm> (2005-12-23)
1089# that they will bring forward proposed amendments to harmonize with the US;
1090# for now assume that this will happen, but they'll still switch at 00:01.
1108# For now, assume it started in 1993.
1091
1092# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1093Rule Moncton 1933 1935 - Jun Sun>=8 1:00 1:00 D
1094Rule Moncton 1933 1935 - Sep Sun>=8 1:00 0 S
1095Rule Moncton 1936 1938 - Jun Sun>=1 1:00 1:00 D
1096Rule Moncton 1936 1938 - Sep Sun>=1 1:00 0 S
1097Rule Moncton 1939 only - May 27 1:00 1:00 D
1098Rule Moncton 1939 1941 - Sep Sat>=21 1:00 0 S
1099Rule Moncton 1940 only - May 19 1:00 1:00 D
1100Rule Moncton 1941 only - May 4 1:00 1:00 D
1101Rule Moncton 1946 1972 - Apr lastSun 2:00 1:00 D
1102Rule Moncton 1946 1956 - Sep lastSun 2:00 0 S
1103Rule Moncton 1957 1972 - Oct lastSun 2:00 0 S
1104Rule Moncton 1993 2006 - Apr Sun>=1 0:01 1:00 D
1105Rule Moncton 1993 2006 - Oct lastSun 0:01 0 S
1109
1110# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1111Rule Moncton 1933 1935 - Jun Sun>=8 1:00 1:00 D
1112Rule Moncton 1933 1935 - Sep Sun>=8 1:00 0 S
1113Rule Moncton 1936 1938 - Jun Sun>=1 1:00 1:00 D
1114Rule Moncton 1936 1938 - Sep Sun>=1 1:00 0 S
1115Rule Moncton 1939 only - May 27 1:00 1:00 D
1116Rule Moncton 1939 1941 - Sep Sat>=21 1:00 0 S
1117Rule Moncton 1940 only - May 19 1:00 1:00 D
1118Rule Moncton 1941 only - May 4 1:00 1:00 D
1119Rule Moncton 1946 1972 - Apr lastSun 2:00 1:00 D
1120Rule Moncton 1946 1956 - Sep lastSun 2:00 0 S
1121Rule Moncton 1957 1972 - Oct lastSun 2:00 0 S
1122Rule Moncton 1993 2006 - Apr Sun>=1 0:01 1:00 D
1123Rule Moncton 1993 2006 - Oct lastSun 0:01 0 S
1106Rule Moncton 2007 max - Mar Sun>=8 0:01 1:00 D
1107Rule Moncton 2007 max - Nov Sun>=1 0:01 0 S
1108# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1109Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
1110 -5:00 - EST 1902 Jun 15
1111 -4:00 Canada A%sT 1933
1112 -4:00 Moncton A%sT 1942
1113 -4:00 Canada A%sT 1946
1114 -4:00 Moncton A%sT 1973
1115 -4:00 Canada A%sT 1993
1124# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1125Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
1126 -5:00 - EST 1902 Jun 15
1127 -4:00 Canada A%sT 1933
1128 -4:00 Moncton A%sT 1942
1129 -4:00 Canada A%sT 1946
1130 -4:00 Moncton A%sT 1973
1131 -4:00 Canada A%sT 1993
1116 -4:00 Moncton A%sT
1132 -4:00 Moncton A%sT 2007
1133 -4:00 Canada A%sT
1117
1134
1118# Ontario, Quebec
1135# Quebec
1119
1136
1120# From Paul Eggert (2006-03-22):
1121# Shanks & Pottenger writes that since 1970 most of Ontario has been like
1122# Toronto, and most of Quebec has been like Montreal.
1137# From Paul Eggert (2006-07-09):
1138# Shanks & Pottenger write that since 1970 most of Quebec has been
1139# like Montreal.
1140
1141# From Paul Eggert (2006-06-27):
1142# Matthews and Vincent (1998) also write that Quebec east of the -63
1143# meridian is supposed to observe AST, but residents as far east as
1144# Natashquan use EST/EDT, and residents east of Natashquan use AST.
1145# In "Official time in Quebec" the Quebec department of justice writes in
1146# http://www.justice.gouv.qc.ca/english/publications/generale/temps-regl-1-a.htm
1147# that "The residents of the Municipality of the
1148# Cote-Nord-du-Golfe-Saint-Laurent and the municipalities of Saint-Augustin,
1149# Bonne-Esperance and Blanc-Sablon apply the Official Time Act as it is
1150# written and use Atlantic standard time all year round. The same applies to
1151# the residents of the Native facilities along the lower North Shore."
1152# <http://www.assnat.qc.ca/eng/37legislature2/Projets-loi/Publics/06-a002.htm>
1153# says this common practice was codified into law as of 2007.
1154# For lack of better info, guess this practice began around 1970, contra to
1155# Shanks & Pottenger who have this region observing AST/ADT.
1156
1157# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1158Rule Mont 1917 only - Mar 25 2:00 1:00 D
1159Rule Mont 1917 only - Apr 24 0:00 0 S
1160Rule Mont 1919 only - Mar 31 2:30 1:00 D
1161Rule Mont 1919 only - Oct 25 2:30 0 S
1162Rule Mont 1920 only - May 2 2:30 1:00 D
1163Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
1164Rule Mont 1921 only - May 1 2:00 1:00 D
1165Rule Mont 1922 only - Apr 30 2:00 1:00 D
1166Rule Mont 1924 only - May 17 2:00 1:00 D
1167Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
1168Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
1169# The 1927-to-1937 rules can be expressed more simply as
1170# Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
1171# Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
1172# The rules below avoid use of 24:00
1173# (which pre-1998 versions of zic cannot handle).
1174Rule Mont 1927 only - May 1 0:00 1:00 D
1175Rule Mont 1927 1932 - Sep lastSun 0:00 0 S
1176Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D
1177Rule Mont 1932 only - May 1 0:00 1:00 D
1178Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D
1179Rule Mont 1933 only - Oct 1 0:00 0 S
1180Rule Mont 1934 1939 - Sep lastSun 0:00 0 S
1181Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
1182Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
1183Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
1184Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
1185Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
1186
1187# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1188Zone America/Blanc-Sablon -3:48:28 - LMT 1884
1189 -4:00 Canada A%sT 1970
1190 -4:00 - AST
1191Zone America/Montreal -4:54:16 - LMT 1884
1192 -5:00 Mont E%sT 1918
1193 -5:00 Canada E%sT 1919
1194 -5:00 Mont E%sT 1942 Feb 9 2:00s
1195 -5:00 Canada E%sT 1946
1196 -5:00 Mont E%sT 1974
1197 -5:00 Canada E%sT
1198
1199
1200# Ontario
1201
1202# From Paul Eggert (2006-07-09):
1203# Shanks & Pottenger write that since 1970 most of Ontario has been like
1204# Toronto.
1123# Thunder Bay skipped DST in 1973.
1124# Many smaller locales did not observe peacetime DST until 1974;
1125# Nipigon (EST) and Rainy River (CST) are the largest that we know of.
1126# Far west Ontario is like Winnipeg; far east Quebec is like Halifax.
1127
1128# From Mark Brader (2003-07-26):
1129# [According to the Toronto Star] Orillia, Ontario, adopted DST
1130# effective Saturday, 1912-06-22, 22:00; the article mentions that

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1145# He also writes that the
1146# <a href="http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html">
1147# Ontario Time Act (1990, Chapter T.9)
1148# </a>
1149# says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT.
1150# Officially Atikokan is therefore on CST/CDT, and most likely this report
1151# concerns a non-official time observed as a matter of local practice.
1152#
1205# Thunder Bay skipped DST in 1973.
1206# Many smaller locales did not observe peacetime DST until 1974;
1207# Nipigon (EST) and Rainy River (CST) are the largest that we know of.
1208# Far west Ontario is like Winnipeg; far east Quebec is like Halifax.
1209
1210# From Mark Brader (2003-07-26):
1211# [According to the Toronto Star] Orillia, Ontario, adopted DST
1212# effective Saturday, 1912-06-22, 22:00; the article mentions that

--- 14 unchanged lines hidden (view full) ---

1227# He also writes that the
1228# <a href="http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html">
1229# Ontario Time Act (1990, Chapter T.9)
1230# </a>
1231# says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT.
1232# Officially Atikokan is therefore on CST/CDT, and most likely this report
1233# concerns a non-official time observed as a matter of local practice.
1234#
1153# From Paul Eggert (2006-03-22):
1154# For what it's worth, Shanks & Pottenger say that Atikokan has agreed with
1155# Rainy River ever since standard time was introduced.
1156
1157# From Paul Eggert (2000-10-02):
1158# Matthews and Vincent (1998) write that Atikokan, Pickle Lake, and
1159# New Osnaburgh observe CST all year, that Big Trout Lake observes
1160# CST/CDT, and that Upsala and Shebandowan observe EST/EDT, all in
1161# violation of the official Ontario rules.
1235# From Paul Eggert (2000-10-02):
1236# Matthews and Vincent (1998) write that Atikokan, Pickle Lake, and
1237# New Osnaburgh observe CST all year, that Big Trout Lake observes
1238# CST/CDT, and that Upsala and Shebandowan observe EST/EDT, all in
1239# violation of the official Ontario rules.
1162# They also write that Quebec east of the -63 meridian is supposed to
1163# observe AST, but residents as far east as Natashquan use EST/EDT,
1164# and residents east of Natashquan use AST.
1165# We probably need Zones for far east Quebec and for Atikokan,
1166# but we don't know when their practices started.
1240#
1241# From Paul Eggert (2006-07-09):
1242# Chris Walton (2006-07-06) mentioned an article by Stephanie MacLellan in the
1243# 2005-07-21 Chronicle-Journal, which said:
1244#
1245# The clocks in Atikokan stay set on standard time year-round.
1246# This means they spend about half the time on central time and
1247# the other half on eastern time.
1248#
1249# For the most part, the system works, Mayor Dennis Brown said.
1250#
1251# "The majority of businesses in Atikokan deal more with Eastern
1252# Canada, but there are some that deal with Western Canada," he
1253# said. "I don't see any changes happening here."
1254#
1255# Walton also writes "Supposedly Pickle Lake and Mishkeegogamang
1256# [New Osnaburgh] follow the same practice."
1167
1257
1168# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1169Rule Mont 1917 only - Mar 25 2:00 1:00 D
1170Rule Mont 1917 only - Apr 24 0:00 0 S
1171Rule Mont 1919 only - Mar 31 2:30 1:00 D
1172Rule Mont 1919 only - Oct 25 2:30 0 S
1173Rule Mont 1920 only - May 2 2:30 1:00 D
1174Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
1175Rule Mont 1921 only - May 1 2:00 1:00 D
1176Rule Mont 1922 only - Apr 30 2:00 1:00 D
1177Rule Mont 1924 only - May 17 2:00 1:00 D
1178Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
1179Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
1180# The 1927-to-1937 rules can be expressed more simply as
1181# Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
1182# Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
1183# The rules below avoid use of 24:00
1184# (which pre-1998 versions of zic cannot handle).
1185Rule Mont 1927 only - May 1 0:00 1:00 D
1186Rule Mont 1927 1932 - Sep lastSun 0:00 0 S
1187Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D
1188Rule Mont 1932 only - May 1 0:00 1:00 D
1189Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D
1190Rule Mont 1933 only - Oct 1 0:00 0 S
1191Rule Mont 1934 1939 - Sep lastSun 0:00 0 S
1192Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
1193Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
1194Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
1195Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
1196Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
1258# From Garry McKinnon (2006-07-14) via Chris Walton:
1259# I chatted with a member of my board who has an outstanding memory
1260# and a long history in Atikokan (and in the telecom industry) and he
1261# can say for certain that Atikokan has been practicing the current
1262# time keeping since 1952, at least.
1197
1263
1264# From Paul Eggert (2006-07-17):
1265# Shanks & Pottenger say that Atikokan has agreed with Rainy River
1266# ever since standard time was introduced, but the information from
1267# McKinnon sounds more authoritative. For now, assume that Atikokan
1268# switched to EST immediately after WWII era daylight saving time
1269# ended. This matches the old (less-populous) America/Coral_Harbour
1270# entry since our cutoff date of 1970, so we can move
1271# America/Coral_Harbour to the 'backward' file.
1272
1273# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1198Rule Toronto 1919 only - Mar 30 23:30 1:00 D
1199Rule Toronto 1919 only - Oct 26 0:00 0 S
1200Rule Toronto 1920 only - May 2 2:00 1:00 D
1201Rule Toronto 1920 only - Sep 26 0:00 0 S
1202Rule Toronto 1921 only - May 15 2:00 1:00 D
1203Rule Toronto 1921 only - Sep 15 2:00 0 S
1204Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D
1205# Shanks & Pottenger say 1923-09-19; assume it's a typo and that "-16"

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1223Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D
1224Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D
1225Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S
1226Rule Toronto 1949 only - Nov lastSun 0:00 0 S
1227Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D
1228Rule Toronto 1950 only - Nov lastSun 2:00 0 S
1229Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S
1230# Shanks & Pottenger say Toronto ended DST a week early in 1971,
1274Rule Toronto 1919 only - Mar 30 23:30 1:00 D
1275Rule Toronto 1919 only - Oct 26 0:00 0 S
1276Rule Toronto 1920 only - May 2 2:00 1:00 D
1277Rule Toronto 1920 only - Sep 26 0:00 0 S
1278Rule Toronto 1921 only - May 15 2:00 1:00 D
1279Rule Toronto 1921 only - Sep 15 2:00 0 S
1280Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D
1281# Shanks & Pottenger say 1923-09-19; assume it's a typo and that "-16"

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1299Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D
1300Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D
1301Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S
1302Rule Toronto 1949 only - Nov lastSun 0:00 0 S
1303Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D
1304Rule Toronto 1950 only - Nov lastSun 2:00 0 S
1305Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S
1306# Shanks & Pottenger say Toronto ended DST a week early in 1971,
1231# namely on 1971-10-24, but Mark Brader wrote (2003-05-31) that he
1232# checked the 1971-10-30 issue of the Toronto Star, and it said that
1233# DST ended 1971-10-31 as usual.
1307# namely on 1971-10-24, but Mark Brader wrote (2003-05-31) that this
1308# is wrong, and that he had confirmed it by checking the 1971-10-30
1309# Toronto Star, which said that DST was ending 1971-10-31 as usual.
1234Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S
1235
1236# From Paul Eggert (2003-07-27):
1237# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
1238# Port Arthur, Ontario, the principle of the Bill has been in
1239# operation for the past three years, and in the City of Moose Jaw,
1240# Saskatchewan, for one year."
1241

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1247# Time Zones was permanently moved about two hundred miles west to
1248# include the Thunder Bay area.... When Canada adopted daylight
1249# savings time in 1916, Fort William and Port Arthur, having done so
1250# already, did not change their clocks.... During the Second World
1251# War,... [t]he cities agreed to implement DST during the summer
1252# months for the remainder of the war years.
1253
1254# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1310Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S
1311
1312# From Paul Eggert (2003-07-27):
1313# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
1314# Port Arthur, Ontario, the principle of the Bill has been in
1315# operation for the past three years, and in the City of Moose Jaw,
1316# Saskatchewan, for one year."
1317

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1323# Time Zones was permanently moved about two hundred miles west to
1324# include the Thunder Bay area.... When Canada adopted daylight
1325# savings time in 1916, Fort William and Port Arthur, having done so
1326# already, did not change their clocks.... During the Second World
1327# War,... [t]he cities agreed to implement DST during the summer
1328# months for the remainder of the war years.
1329
1330# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1255Zone America/Montreal -4:54:16 - LMT 1884
1256 -5:00 Mont E%sT 1918
1257 -5:00 Canada E%sT 1919
1258 -5:00 Mont E%sT 1942 Feb 9 2:00s
1259 -5:00 Canada E%sT 1946
1260 -5:00 Mont E%sT 1974
1261 -5:00 Canada E%sT
1262Zone America/Toronto -5:17:32 - LMT 1895
1263 -5:00 Canada E%sT 1919
1264 -5:00 Toronto E%sT 1942 Feb 9 2:00s
1265 -5:00 Canada E%sT 1946
1266 -5:00 Toronto E%sT 1974
1267 -5:00 Canada E%sT
1268Zone America/Thunder_Bay -5:57:00 - LMT 1895
1269 -6:00 - CST 1910
1270 -5:00 - EST 1942
1271 -5:00 Canada E%sT 1970
1272 -5:00 Mont E%sT 1973
1273 -5:00 - EST 1974
1274 -5:00 Canada E%sT
1275Zone America/Nipigon -5:53:04 - LMT 1895
1276 -5:00 Canada E%sT 1940 Sep 29
1277 -5:00 1:00 EDT 1942 Feb 9 2:00s
1278 -5:00 Canada E%sT
1331Zone America/Toronto -5:17:32 - LMT 1895
1332 -5:00 Canada E%sT 1919
1333 -5:00 Toronto E%sT 1942 Feb 9 2:00s
1334 -5:00 Canada E%sT 1946
1335 -5:00 Toronto E%sT 1974
1336 -5:00 Canada E%sT
1337Zone America/Thunder_Bay -5:57:00 - LMT 1895
1338 -6:00 - CST 1910
1339 -5:00 - EST 1942
1340 -5:00 Canada E%sT 1970
1341 -5:00 Mont E%sT 1973
1342 -5:00 - EST 1974
1343 -5:00 Canada E%sT
1344Zone America/Nipigon -5:53:04 - LMT 1895
1345 -5:00 Canada E%sT 1940 Sep 29
1346 -5:00 1:00 EDT 1942 Feb 9 2:00s
1347 -5:00 Canada E%sT
1279Zone America/Rainy_River -6:17:56 - LMT 1895
1348Zone America/Rainy_River -6:18:16 - LMT 1895
1280 -6:00 Canada C%sT 1940 Sep 29
1281 -6:00 1:00 CDT 1942 Feb 9 2:00s
1282 -6:00 Canada C%sT
1349 -6:00 Canada C%sT 1940 Sep 29
1350 -6:00 1:00 CDT 1942 Feb 9 2:00s
1351 -6:00 Canada C%sT
1352Zone America/Atikokan -6:06:28 - LMT 1895
1353 -6:00 Canada C%sT 1940 Sep 29
1354 -6:00 1:00 CDT 1942 Feb 9 2:00s
1355 -6:00 Canada C%sT 1945 Sep 30 2:00
1356 -5:00 - EST
1283
1284
1285# Manitoba
1286
1357
1358
1359# Manitoba
1360
1287# From Chris Walton (2006-04-05):
1288# Here is a copy of the new official time act ...
1289# http://web2.gov.mb.ca/laws/statutes/ccsm/o030e.php
1290# The act indicates that daylight savings ends at 2:00am.
1291
1292# From Rob Douglas (2006-04-06):
1293# the old Manitoba Time Act - as amended by Bill 2, assented to
1294# March 27, 1987 ... said ...
1295# "between two o'clock Central Standard Time in the morning of
1296# the first Sunday of April of each year and two o'clock Central
1297# Standard Time in the morning of the last Sunday of October next
1298# following, one hour in advance of Central Standard Time."...
1299# I believe that the English legislation [of the old time act] had =

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1383#
1384# It took a few years for the dust to settle (I know one story of a town
1385# on one time zone having its school in another, such that a mom had to
1386# serve her family lunch in two shifts), but presently it seems that only
1387# a few towns on the border with Alberta (e.g. Lloydminster) follow MT
1388# rules any more; all other districts appear to have used CST year round
1389# since sometime in the 1960s.
1390
1361# From Rob Douglas (2006-04-06):
1362# the old Manitoba Time Act - as amended by Bill 2, assented to
1363# March 27, 1987 ... said ...
1364# "between two o'clock Central Standard Time in the morning of
1365# the first Sunday of April of each year and two o'clock Central
1366# Standard Time in the morning of the last Sunday of October next
1367# following, one hour in advance of Central Standard Time."...
1368# I believe that the English legislation [of the old time act] had =

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1452#
1453# It took a few years for the dust to settle (I know one story of a town
1454# on one time zone having its school in another, such that a mom had to
1455# serve her family lunch in two shifts), but presently it seems that only
1456# a few towns on the border with Alberta (e.g. Lloydminster) follow MT
1457# rules any more; all other districts appear to have used CST year round
1458# since sometime in the 1960s.
1459
1460# From Chris Walton (2006-06-26):
1461# The Saskatchewan time act which was last updated in 1996 is about 30 pages
1462# long and rather painful to read.
1463# http://www.qp.gov.sk.ca/documents/English/Statutes/Statutes/T14.pdf
1464
1391# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1392Rule Regina 1918 only - Apr 14 2:00 1:00 D
1393Rule Regina 1918 only - Oct 31 2:00 0 S
1394Rule Regina 1930 1934 - May Sun>=1 0:00 1:00 D
1395Rule Regina 1930 1934 - Oct Sun>=1 0:00 0 S
1396Rule Regina 1937 1941 - Apr Sun>=8 0:00 1:00 D
1397Rule Regina 1937 only - Oct Sun>=8 0:00 0 S
1398Rule Regina 1938 only - Oct Sun>=1 0:00 0 S

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1485# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
1486# c. 7 defines Yukon standard time as UTC-9. This is still valid;
1487# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
1488# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
1489# * O.I.C. 1980/02 established DST.
1490# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
1491# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go
1492# with Englander.
1465# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1466Rule Regina 1918 only - Apr 14 2:00 1:00 D
1467Rule Regina 1918 only - Oct 31 2:00 0 S
1468Rule Regina 1930 1934 - May Sun>=1 0:00 1:00 D
1469Rule Regina 1930 1934 - Oct Sun>=1 0:00 0 S
1470Rule Regina 1937 1941 - Apr Sun>=8 0:00 1:00 D
1471Rule Regina 1937 only - Oct Sun>=8 0:00 0 S
1472Rule Regina 1938 only - Oct Sun>=1 0:00 0 S

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1559# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
1560# c. 7 defines Yukon standard time as UTC-9. This is still valid;
1561# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
1562# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
1563# * O.I.C. 1980/02 established DST.
1564# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
1565# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go
1566# with Englander.
1567# From Chris Walton (2006-06-26):
1568# Here is a link to the old daylight saving portion of the interpretation
1569# act which was last updated in 1987:
1570# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf
1493
1494# From Rives McDow (1999-09-04):
1495# Nunavut ... moved ... to incorporate the whole territory into one time zone.
1496# <a href="http://www.nunatsiaq.com/nunavut/nvt90903_13.html">
1497# Nunavut moves to single time zone Oct. 31
1498# </a>
1499#
1500# From Antoine Leca (1999-09-06):

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1592# round. Using Google, it's easy to find other websites that confirm this.
1593# I wasn't able to find how far back this time regimen goes, but since it
1594# predates the creation of Nunavut, it probably goes back many years....
1595# The Inuktitut name of Coral Harbour is Sallit, but it's rarely used.
1596#
1597# From Paul Eggert (2005-07-26):
1598# For lack of better information, assume that Southampton Island observed
1599# daylight saving only during wartime.
1571
1572# From Rives McDow (1999-09-04):
1573# Nunavut ... moved ... to incorporate the whole territory into one time zone.
1574# <a href="http://www.nunatsiaq.com/nunavut/nvt90903_13.html">
1575# Nunavut moves to single time zone Oct. 31
1576# </a>
1577#
1578# From Antoine Leca (1999-09-06):

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1670# round. Using Google, it's easy to find other websites that confirm this.
1671# I wasn't able to find how far back this time regimen goes, but since it
1672# predates the creation of Nunavut, it probably goes back many years....
1673# The Inuktitut name of Coral Harbour is Sallit, but it's rarely used.
1674#
1675# From Paul Eggert (2005-07-26):
1676# For lack of better information, assume that Southampton Island observed
1677# daylight saving only during wartime.
1600#
1601# From Chris Walton (2006-04-25):
1602# Daylight saving time will be extended by four weeks starting in 2007....
1603# http://www.cbc.ca/north/story/nor-nwt-time-change.html
1604
1678
1679# From Chris Walton (2006-07-19):
1680# The government of Yukon Territory ... recently announced it will extend
1681# daylight saving in 2007.... http://www.gov.yk.ca/news/2006/06-164.html
1682
1605# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1606Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
1607Rule NT_YK 1918 only - Oct 27 2:00 0 S
1608Rule NT_YK 1919 only - May 25 2:00 1:00 D
1609Rule NT_YK 1919 only - Nov 1 0:00 0 S
1610Rule NT_YK 1942 only - Feb 9 2:00 1:00 W # War
1611Rule NT_YK 1945 only - Aug 14 23:00u 1:00 P # Peace
1612Rule NT_YK 1945 only - Sep 30 2:00 0 S

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1620 -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00
1621 -5:00 Canada E%sT 1999 Oct 31 2:00
1622 -6:00 Canada C%sT 2000 Oct 29 2:00
1623 -5:00 Canada E%sT
1624Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay before 1987
1625 -5:00 NT_YK E%sT 1999 Oct 31 2:00
1626 -6:00 Canada C%sT 2000 Oct 29 2:00
1627 -5:00 Canada E%sT
1683# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1684Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
1685Rule NT_YK 1918 only - Oct 27 2:00 0 S
1686Rule NT_YK 1919 only - May 25 2:00 1:00 D
1687Rule NT_YK 1919 only - Nov 1 0:00 0 S
1688Rule NT_YK 1942 only - Feb 9 2:00 1:00 W # War
1689Rule NT_YK 1945 only - Aug 14 23:00u 1:00 P # Peace
1690Rule NT_YK 1945 only - Sep 30 2:00 0 S

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1698 -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00
1699 -5:00 Canada E%sT 1999 Oct 31 2:00
1700 -6:00 Canada C%sT 2000 Oct 29 2:00
1701 -5:00 Canada E%sT
1702Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay before 1987
1703 -5:00 NT_YK E%sT 1999 Oct 31 2:00
1704 -6:00 Canada C%sT 2000 Oct 29 2:00
1705 -5:00 Canada E%sT
1628Zone America/Coral_Harbour -5:32:40 - LMT 1884
1629 -5:00 NT_YK E%sT 1946
1630 -5:00 - EST
1631Zone America/Rankin_Inlet -6:08:40 - LMT 1884
1706# Now subsumed by America/Atikokan.
1707#Zone America/Coral_Harbour -5:32:40 - LMT 1884
1708# -5:00 NT_YK E%sT 1946
1709# -5:00 - EST
1710Zone America/Rankin_Inlet -6:08:20 - LMT 1884
1632 -6:00 NT_YK C%sT 2000 Oct 29 2:00
1633 -5:00 - EST 2001 Apr 1 3:00
1634 -6:00 Canada C%sT
1635Zone America/Cambridge_Bay -7:00:20 - LMT 1884
1636 -7:00 NT_YK M%sT 1999 Oct 31 2:00
1637 -6:00 Canada C%sT 2000 Oct 29 2:00
1638 -5:00 - EST 2000 Nov 5 0:00
1639 -6:00 - CST 2001 Apr 1 3:00
1640 -7:00 Canada M%sT
1641Zone America/Yellowknife -7:37:24 - LMT 1884
1642 -7:00 NT_YK M%sT 1980
1643 -7:00 Canada M%sT
1711 -6:00 NT_YK C%sT 2000 Oct 29 2:00
1712 -5:00 - EST 2001 Apr 1 3:00
1713 -6:00 Canada C%sT
1714Zone America/Cambridge_Bay -7:00:20 - LMT 1884
1715 -7:00 NT_YK M%sT 1999 Oct 31 2:00
1716 -6:00 Canada C%sT 2000 Oct 29 2:00
1717 -5:00 - EST 2000 Nov 5 0:00
1718 -6:00 - CST 2001 Apr 1 3:00
1719 -7:00 Canada M%sT
1720Zone America/Yellowknife -7:37:24 - LMT 1884
1721 -7:00 NT_YK M%sT 1980
1722 -7:00 Canada M%sT
1644Zone America/Inuvik -8:54:00 - LMT 1884
1723Zone America/Inuvik -8:54:52 - LMT 1884
1645 -8:00 NT_YK P%sT 1979 Apr lastSun 2:00
1646 -7:00 NT_YK M%sT 1980
1647 -7:00 Canada M%sT
1648Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
1649 -9:00 NT_YK Y%sT 1966 Jul 1 2:00
1650 -8:00 NT_YK P%sT 1980
1651 -8:00 Canada P%sT
1652Zone America/Dawson -9:17:40 - LMT 1900 Aug 20

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1947Rule Belize 1974 only - Feb 9 0:00 0 S
1948Rule Belize 1982 only - Dec 18 0:00 1:00 D
1949Rule Belize 1983 only - Feb 12 0:00 0 S
1950# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1951Zone America/Belize -5:52:48 - LMT 1912 Apr
1952 -6:00 Belize C%sT
1953
1954# Bermuda
1724 -8:00 NT_YK P%sT 1979 Apr lastSun 2:00
1725 -7:00 NT_YK M%sT 1980
1726 -7:00 Canada M%sT
1727Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
1728 -9:00 NT_YK Y%sT 1966 Jul 1 2:00
1729 -8:00 NT_YK P%sT 1980
1730 -8:00 Canada P%sT
1731Zone America/Dawson -9:17:40 - LMT 1900 Aug 20

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2026Rule Belize 1974 only - Feb 9 0:00 0 S
2027Rule Belize 1982 only - Dec 18 0:00 1:00 D
2028Rule Belize 1983 only - Feb 12 0:00 0 S
2029# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2030Zone America/Belize -5:52:48 - LMT 1912 Apr
2031 -6:00 Belize C%sT
2032
2033# Bermuda
2034
2035# From Dan Jones, reporting in The Royal Gazette (2006-06-26):
2036
2037# Next year, however, clocks in the US will go forward on the second Sunday
2038# in March, until the first Sunday in November. And, after the Time Zone
2039# (Seasonal Variation) Bill 2006 was passed in the House of Assembly on
2040# Friday, the same thing will happen in Bermuda.
2041# http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135
2042
1955# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1956Zone Atlantic/Bermuda -4:19:04 - LMT 1930 Jan 1 2:00 # Hamilton
1957 -4:00 - AST 1974 Apr 28 2:00
2043# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2044Zone Atlantic/Bermuda -4:19:04 - LMT 1930 Jan 1 2:00 # Hamilton
2045 -4:00 - AST 1974 Apr 28 2:00
1958 -4:00 Bahamas A%sT
2046 -4:00 Bahamas A%sT 1976
2047 -4:00 US A%sT
1959
1960# Cayman Is
1961# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1962Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
1963 -5:07:12 - KMT 1912 Feb # Kingston Mean Time
1964 -5:00 - EST
1965
1966# Costa Rica

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2002# to normal hours (after daylight saving time)".
2003# For now, let's assume that it's a temporary measure.
2004
2005# From Carlos A. Carnero Delgado (2005-11-12):
2006# This year (just like in 2004-2005) there's no change in time zone
2007# adjustment in Cuba. We will stay in daylight saving time:
2008# http://www.granma.cu/espanol/2005/noviembre/mier9/horario.html
2009
2048
2049# Cayman Is
2050# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2051Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
2052 -5:07:12 - KMT 1912 Feb # Kingston Mean Time
2053 -5:00 - EST
2054
2055# Costa Rica

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2091# to normal hours (after daylight saving time)".
2092# For now, let's assume that it's a temporary measure.
2093
2094# From Carlos A. Carnero Delgado (2005-11-12):
2095# This year (just like in 2004-2005) there's no change in time zone
2096# adjustment in Cuba. We will stay in daylight saving time:
2097# http://www.granma.cu/espanol/2005/noviembre/mier9/horario.html
2098
2099# From Steffen Thorsen (2006-08-17):
2100# It is likely that they are not reverting back to standard time this
2101# year either, based on the number of responses I have got from users
2102# (when my site claimed Cuba will end DST on lastSun/October)
2103
2010# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2011Rule Cuba 1928 only - Jun 10 0:00 1:00 D
2012Rule Cuba 1928 only - Oct 10 0:00 0 S
2013Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D
2014Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S
2015Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D
2016Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S
2017Rule Cuba 1965 only - Jun 1 0:00 1:00 D

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2032Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
2033Rule Cuba 1990 1997 - Apr Sun>=1 0:00 1:00 D
2034Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S
2035Rule Cuba 1996 only - Oct 6 0:00s 0 S
2036Rule Cuba 1997 only - Oct 12 0:00s 0 S
2037Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D
2038Rule Cuba 1998 2003 - Oct lastSun 0:00s 0 S
2039Rule Cuba 2000 max - Apr Sun>=1 0:00s 1:00 D
2104# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2105Rule Cuba 1928 only - Jun 10 0:00 1:00 D
2106Rule Cuba 1928 only - Oct 10 0:00 0 S
2107Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D
2108Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S
2109Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D
2110Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S
2111Rule Cuba 1965 only - Jun 1 0:00 1:00 D

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2126Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
2127Rule Cuba 1990 1997 - Apr Sun>=1 0:00 1:00 D
2128Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S
2129Rule Cuba 1996 only - Oct 6 0:00s 0 S
2130Rule Cuba 1997 only - Oct 12 0:00s 0 S
2131Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D
2132Rule Cuba 1998 2003 - Oct lastSun 0:00s 0 S
2133Rule Cuba 2000 max - Apr Sun>=1 0:00s 1:00 D
2040Rule Cuba 2006 max - Oct lastSun 0:00s 0 S
2134Rule Cuba 2007 max - Oct lastSun 0:00s 0 S
2041
2042# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2043Zone America/Havana -5:29:28 - LMT 1890
2044 -5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT
2045 -5:00 Cuba C%sT
2046
2047# Dominica
2048# Zone NAME GMTOFF RULES FORMAT [UNTIL]

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2081 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
2082 -5:00 DR E%sT 1974 Oct 27
2083 -4:00 - AST 2000 Oct 29 02:00
2084 -5:00 US E%sT 2000 Dec 3 01:00
2085 -4:00 - AST
2086
2087# El Salvador
2088
2135
2136# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2137Zone America/Havana -5:29:28 - LMT 1890
2138 -5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT
2139 -5:00 Cuba C%sT
2140
2141# Dominica
2142# Zone NAME GMTOFF RULES FORMAT [UNTIL]

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2175 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
2176 -5:00 DR E%sT 1974 Oct 27
2177 -4:00 - AST 2000 Oct 29 02:00
2178 -5:00 US E%sT 2000 Dec 3 01:00
2179 -4:00 - AST
2180
2181# El Salvador
2182
2089# From Paul Eggert (2006-05-05):
2090# worldtimezone.com reports a 2006-05-02 Spanish-language AP article
2091# saying Honduras will start using DST midnight Saturday, effective 4
2092# months until September, and a 2006-05-03 NACION article saying El
2093# Salvador will follow suit. However, ignore this for now, because:
2094# From Jesper Norgaard Welen (2005-05-05):
2095# Change of DST perhaps postponed in El Salvador:
2096# http://www.laprensagrafica.com/lodeldia/883.asp
2097
2098# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2099Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D
2100Rule Salv 1987 1988 - Sep lastSun 0:00 0 S
2101# There are too many San Salvadors elsewhere, so use America/El_Salvador
2102# instead of America/San_Salvador.
2103# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2104Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
2105 -6:00 Salv C%sT

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2118#
2119# From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
2120# Diario Co Latino, at
2121# http://www.diariocolatino.com/internacionales/detalles.asp?NewsID=8079,
2122# says in an article dated 2006-04-19 that the Guatemalan government had
2123# decided on that date to advance official time by 60 minutes, to lessen the
2124# impact of the elevated cost of oil.... Daylight saving time will last from
2125# 2006-04-29 24:00 (Guatemalan standard time) to 2006-09-30 (time unspecified).
2183# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2184Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D
2185Rule Salv 1987 1988 - Sep lastSun 0:00 0 S
2186# There are too many San Salvadors elsewhere, so use America/El_Salvador
2187# instead of America/San_Salvador.
2188# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2189Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
2190 -6:00 Salv C%sT

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2203#
2204# From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
2205# Diario Co Latino, at
2206# http://www.diariocolatino.com/internacionales/detalles.asp?NewsID=8079,
2207# says in an article dated 2006-04-19 that the Guatemalan government had
2208# decided on that date to advance official time by 60 minutes, to lessen the
2209# impact of the elevated cost of oil.... Daylight saving time will last from
2210# 2006-04-29 24:00 (Guatemalan standard time) to 2006-09-30 (time unspecified).
2211# From Paul Eggert (2006-06-22):
2212# The Ministry of Energy and Mines, press release CP-15/2006
2213# (2006-04-19), says DST ends at 24:00. See
2214# <http://www.sieca.org.gt/Sitio_publico/Energeticos/Doc/Medidas/Cambio_Horario_Nac_190406.pdf>.
2215
2126# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2127Rule Guat 1973 only - Nov 25 0:00 1:00 D
2128Rule Guat 1974 only - Feb 24 0:00 0 S
2129Rule Guat 1983 only - May 21 0:00 1:00 D
2130Rule Guat 1983 only - Sep 22 0:00 0 S
2131Rule Guat 1991 only - Mar 23 0:00 1:00 D
2132Rule Guat 1991 only - Sep 7 0:00 0 S
2133Rule Guat 2006 only - Apr 30 0:00 1:00 D

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2187# Honduras
2188# Shanks & Pottenger say 1921 Jan 1; go with Whitman's more precise Apr 1.
2189
2190# From Paul Eggert (2006-05-05):
2191# worldtimezone.com reports a 2006-05-02 Spanish-language AP article
2192# saying Honduras will start using DST midnight Saturday, effective 4
2193# months until September. La Tribuna reported today
2194# <http://www.latribuna.hn/99299.html> that Manuel Zelaya, the president
2216# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2217Rule Guat 1973 only - Nov 25 0:00 1:00 D
2218Rule Guat 1974 only - Feb 24 0:00 0 S
2219Rule Guat 1983 only - May 21 0:00 1:00 D
2220Rule Guat 1983 only - Sep 22 0:00 0 S
2221Rule Guat 1991 only - Mar 23 0:00 1:00 D
2222Rule Guat 1991 only - Sep 7 0:00 0 S
2223Rule Guat 2006 only - Apr 30 0:00 1:00 D

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2277# Honduras
2278# Shanks & Pottenger say 1921 Jan 1; go with Whitman's more precise Apr 1.
2279
2280# From Paul Eggert (2006-05-05):
2281# worldtimezone.com reports a 2006-05-02 Spanish-language AP article
2282# saying Honduras will start using DST midnight Saturday, effective 4
2283# months until September. La Tribuna reported today
2284# <http://www.latribuna.hn/99299.html> that Manuel Zelaya, the president
2195# of Honduras, refused to back down on this. For lack of better info,
2196# assume they'll use the same end-of-DST rules as in 1987 and 1988.
2285# of Honduras, refused to back down on this.
2197
2286
2287# From Jesper Norgaard Welen (2006-08-08):
2288# It seems that Honduras has returned from DST to standard time this Monday at
2289# 00:00 hours (prolonging Sunday to 25 hours duration).
2290# http://www.worldtimezone.com/dst_news/dst_news_honduras04.html
2291
2292# From Paul Eggert (2006-08-08):
2293# Also see Diario El Heraldo, The country returns to standard time (2006-08-08)
2294# <http://www.elheraldo.hn/nota.php?nid=54941&sec=12>.
2295# It mentions executive decree 18-2006.
2296
2297# From Steffen Thorsen (2006-08-17):
2298# Honduras will observe DST from 2007 to 2009, exact dates are not
2299# published, I have located this authoritative source:
2300# http://www.presidencia.gob.hn/noticia.aspx?nId=47
2301
2198# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2199Rule Hond 1987 1988 - May Sun>=1 0:00 1:00 D
2200Rule Hond 1987 1988 - Sep lastSun 0:00 0 S
2302# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2303Rule Hond 1987 1988 - May Sun>=1 0:00 1:00 D
2304Rule Hond 1987 1988 - Sep lastSun 0:00 0 S
2201Rule Hond 2006 only - May Sun>=1 0:00 1:00 D
2202Rule Hond 2006 only - Sep lastSun 0:00 0 S
2305Rule Hond 2006 2009 - May Sun>=1 0:00 1:00 D
2306Rule Hond 2006 2009 - Aug Mon>=1 0:00 0 S
2203# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2204Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr
2205 -6:00 Hond C%sT
2206#
2207# Great Swan I ceded by US to Honduras in 1972
2208
2209# Jamaica
2210

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2274#
2275# From Jesper Norgaard Welen (2006-05-05):
2276# http://www.elnuevodiario.com.ni/2006/05/01/nacionales/18410
2277# (my informal translation)
2278# By order of the president of the republic, Enrique Bolanos, Nicaragua
2279# advanced by sixty minutes their official time, yesterday at 2 in the
2280# morning, and will stay that way until 30.th. of september.
2281#
2307# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2308Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr
2309 -6:00 Hond C%sT
2310#
2311# Great Swan I ceded by US to Honduras in 1972
2312
2313# Jamaica
2314

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2378#
2379# From Jesper Norgaard Welen (2006-05-05):
2380# http://www.elnuevodiario.com.ni/2006/05/01/nacionales/18410
2381# (my informal translation)
2382# By order of the president of the republic, Enrique Bolanos, Nicaragua
2383# advanced by sixty minutes their official time, yesterday at 2 in the
2384# morning, and will stay that way until 30.th. of september.
2385#
2386# From Jesper Norgaard Welen (2006-09-30):
2387# http://www.presidencia.gob.ni/buscador_gaceta/BD/DECRETOS/2006/D-063-2006P-PRN-Cambio-Hora.pdf
2388# My informal translation runs:
2389# The natural sun time is restored in all the national territory, in that the
2390# time is returned one hour at 01:00 am of October 1 of 2006.
2391#
2282# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2283Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
2284Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
2285Rule Nic 2005 only - Apr 10 0:00 1:00 D
2392# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2393Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
2394Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
2395Rule Nic 2005 only - Apr 10 0:00 1:00 D
2286Rule Nic 2005 2006 - Oct Sun>=1 0:00 0 S
2396Rule Nic 2005 only - Oct Sun>=1 0:00 0 S
2287Rule Nic 2006 only - Apr 30 2:00 1:00 D
2397Rule Nic 2006 only - Apr 30 2:00 1:00 D
2398Rule Nic 2006 only - Oct Sun>=1 1:00 0 S
2288# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2289Zone America/Managua -5:45:08 - LMT 1890
2290 -5:45:12 - MMT 1934 Jun 23 # Managua Mean Time?
2291 -6:00 - CST 1973 May
2292 -5:00 - EST 1975 Feb 16
2293 -6:00 Nic C%sT 1992 Jan 1 4:00
2294 -5:00 - EST 1992 Sep 24
2295 -6:00 - CST 1993

--- 64 unchanged lines hidden --- 		2399# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2400Zone America/Managua -5:45:08 - LMT 1890
2401 -5:45:12 - MMT 1934 Jun 23 # Managua Mean Time?
2402 -6:00 - CST 1973 May
2403 -5:00 - EST 1975 Feb 16
2404 -6:00 Nic C%sT 1992 Jan 1 4:00
2405 -5:00 - EST 1992 Sep 24
2406 -6:00 - CST 1993

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