1# @(#)northamerica 7.29
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> (1994-08-17):
9# A reliable and entertaining source about time zones is
--- 447 unchanged lines hidden (view full) ---
457Link America/Los_Angeles PST8PDT
458Link America/Indianapolis EST
459Link America/Phoenix MST
460Link Pacific/Honolulu HST
461
462################################################################################
463
464
465# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
466# A good source for time zone historical data outside the US is
467# Thomas G. Shanks, The International Atlas (3rd edition),
468# San Diego: ACS Publications, Inc. (1991).
469#
470# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
471# for recent time zone data is the International Air Transport
472# Association's Standard Schedules Information Manual (IATA SSIM),
473# published semiannually. Law sent in several helpful summaries
474# of the IATA's data after 1990.
475#
476# Except where otherwise noted, Shanks is the source for entries through 1990,
477# and IATA SSIM is the source for entries after 1990.
478#
479# Another source occasionally used is Edward W. Whitman, World Time Differences,
480# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
481# I found in the UCLA library.
482#
483# See the `europe' file for Greenland.
484#
485# See the `africa' file for time zone naming and abbreviation conventions.
486
--- 39 unchanged lines hidden (view full) ---
526Rule Canada 1918 only - Oct 31 2:00 0 S
527Rule Canada 1942 only - Feb 9 2:00 1:00 D
528Rule Canada 1945 only - Sep 30 2:00 0 S
529Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D
530Rule Canada 1974 max - Oct lastSun 2:00 0 S
531Rule Canada 1987 max - Apr Sun>=1 2:00 1:00 D
532
533
534# Newfoundland (except Labrador)
535
536# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
537Rule StJohns 1917 1918 - Apr Sun>=8 2:00 1:00 D
538Rule StJohns 1917 only - Sep 17 2:00 0 S
539Rule StJohns 1918 only - Oct 31 2:00 0 S
540# Whitman gives 1919 Apr 5 and 1920 Apr 5; go with Shanks.
541Rule StJohns 1919 only - May 5 23:00 1:00 D
542Rule StJohns 1919 only - Aug 12 23:00 0 S
--- 20 unchanged lines hidden (view full) ---
563Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S
564Rule StJohns 1960 max - Oct lastSun 2:00 0 S
565Rule StJohns 1987 only - Apr Sun>=1 2:00 1:00 D
566Rule StJohns 1988 only - Apr Sun>=1 2:00 2:00 DD
567Rule StJohns 1989 max - Apr Sun>=1 2:00 1:00 D
568# St John's has an apostrophe, but Posix file names can't have apostrophes.
569# Zone NAME GMTOFF RULES FORMAT [UNTIL]
570Zone America/St_Johns -3:30:52 - LMT 1884
571 -3:30:52 StJohns N%sT 1935 Mar 30
572 -3:30 StJohns N%sT
573
574
575# east Labrador
576
577# The name `Happy Valley-Goose Bay' is too long; use `Goose Bay'.
578# Zone NAME GMTOFF RULES FORMAT [UNTIL]
579Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay
580 -3:30:52 StJohns NST 1919
581 -3:30:52 - NST 1935 Mar 30
582 -3:30 - NST 1936
583 -3:30 StJohns N%sT 1966 Mar 15 2:00
584 -4:00 StJohns A%sT
585
586
587# west Labrador, New Brunswick, Nova Scotia, Prince Edward I
588
589# From Paul Eggert (1996-06-12):
590# Shanks writes that since 1970 most of this region has been like Halifax.
591# Many locales did not observe peacetime DST until 1972;
592# Glace Bay, NS is the largest that we know of.
593# Shanks also writes that Liverpool, NS was the only town in Canada to observe
594# DST in 1971 but not 1970; for now we'll assume this is a typo.
595
596# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
--- 243 unchanged lines hidden (view full) ---
840Zone America/Dawson_Creek -8:00:56 - LMT 1884
841 -8:00 Canada P%sT 1947
842 -8:00 Vanc P%sT 1972 Aug 30 2:00
843 -7:00 - MST
844
845
846# Northwest Territories, Yukon
847
848# From Paul Eggert (1996-10-07):
849# Dawson switched to PST in 1973. Inuvik switched to MST in 1979.
850# Shanks's table for Watson Lake is corrupted, so we have no data there.
851# Mathew Englander <mathew@io.org> (1996-10-07) gives the following refs:
852# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
853# c. 7 defines Yukon standard time as UTC-9. This is still valid;
854# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
855# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
856# * O.I.C. 1980/02 established DST.
857# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
858# Shanks says Yukon's 1973-10-28 switch was at 2:00; go with Englander.
859
860# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
861Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
862Rule NT_YK 1918 only - Oct 27 2:00 0 S
863Rule NT_YK 1919 only - May 25 2:00 1:00 D
864Rule NT_YK 1919 only - Nov 1 0:00 0 S
865Rule NT_YK 1942 only - Feb 9 2:00 1:00 D
866Rule NT_YK 1945 only - Sep 30 2:00 0 S
--- 13 unchanged lines hidden (view full) ---
880 -7:00 NT_YK M%sT
881Zone America/Inuvik -8:54:00 - LMT 1884
882 -8:00 NT_YK P%sT 1979 Apr lastSun 2:00
883 -7:00 NT_YK M%sT
884Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
885 -9:00 NT_YK Y%sT 1966 Jul 1 2:00
886 -8:00 NT_YK P%sT
887Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
888 -9:00 NT_YK Y%sT 1973 Oct 28 0:00
889 -8:00 NT_YK P%sT
890
891
892###############################################################################
893
894# Mexico
895
896# From Guy Harris:
--- 196 unchanged lines hidden (view full) ---
1093# uninhabited
1094
1095# Costa Rica
1096# Shanks gives some very odd dates for 1991, and stops there.
1097# For now, we won't guess further.
1098# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1099Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D
1100Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S
1101Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D
1102# IATA SSIM (1991-09) says the following was at 1:00; go with Shanks.
1103Rule CR 1991 only - Jul 1 0:00 0 S
1104Rule CR 1992 only - Mar 15 0:00 0 S
1105# There are too many San Joses elsewhere, so we'll use `Costa Rica'.
1106# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1107Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose
1108 -5:36 - SJMT 1921 Jan 15 # San Jose Mean Time
1109 -6:00 CR C%sT
1110# Coco
1111# no information; probably like America/Costa_Rica
1112
--- 26 unchanged lines hidden (view full) ---
1139Rule Cuba 1969 1977 - Apr lastSun 0:00 1:00 D
1140Rule Cuba 1969 1971 - Oct lastSun 0:00 0 S
1141Rule Cuba 1972 1974 - Oct 8 0:00 0 S
1142Rule Cuba 1975 1977 - Oct lastSun 0:00 0 S
1143Rule Cuba 1978 only - May 7 0:00 1:00 D
1144Rule Cuba 1978 1980 - Oct Sun>=8 0:00 0 S
1145Rule Cuba 1979 1980 - Mar Sun>=15 0:00 1:00 D
1146Rule Cuba 1981 1985 - May Sun>=5 0:00 1:00 D
1147Rule Cuba 1981 1990 - Oct Sun>=8 0:00 0 S
1148Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
1149Rule Cuba 1990 max - Apr Sun>=1 0:00 1:00 D
1150Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S
1151Rule Cuba 1996 max - Oct Sun>=1 0:00s 0 S
1152
1153# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1154Zone America/Havana -5:29:28 - LMT 1890
1155 -5:30 - HMT 1925 Jul 19 12:00 # Havana MT
1156 -5:00 Cuba C%sT
1157
1158# Dominica
1159# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 34 unchanged lines hidden (view full) ---
1194 -4:00 - AST
1195
1196# Guatemala
1197# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1198Rule Guat 1973 only - Nov 25 0:00 1:00 D
1199Rule Guat 1974 only - Feb 24 0:00 0 S
1200Rule Guat 1983 only - May 21 0:00 1:00 D
1201Rule Guat 1983 only - Sep 22 0:00 0 S
1202Rule Guat 1991 only - Mar 23 0:00 1:00 D
1203Rule Guat 1991 only - Sep 7 0:00 0 S
1204# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1205Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
1206 -6:00 Guat C%sT
1207
1208# Haiti
1209# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1210Rule Haiti 1983 only - May 8 0:00 1:00 D
1211Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D
1212Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S
1213# Shanks says AT is 2:00, but IATA SSIM (1991/1996) says 1:00s. Go with IATA.
1214Rule Haiti 1988 max - Apr Sun>=1 1:00s 1:00 D
1215Rule Haiti 1988 max - Oct lastSun 1:00s 0 S
1216# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1217Zone America/Port-au-Prince -4:49:20 - LMT 1890
1218 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT
1219 -5:00 Haiti E%sT
1220
1221# Honduras
1222# Shanks says 1921 Jan 1; go with Whitman's more precise Apr 1.
1223# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 8 unchanged lines hidden (view full) ---
1232# From U. S. Naval Observatory (1989-01-19):
1233# JAMAICA 5 H BEHIND UTC
1234
1235# From Shanks (1991):
1236# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1237Zone America/Jamaica -5:07:12 - LMT 1890 # Kingston
1238 -5:07 - KMT 1912 Feb # Kingston Mean Time
1239 -5:00 - EST 1974 Jan 6 2:00
1240 -5:00 US E%sT 1984
1241 -5:00 - EST
1242
1243# Martinique
1244# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1245Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France
1246 -4:04 - FFMT 1911 May # Fort-de-France MT
1247 -4:00 - AST 1980 Apr 6
1248 -4:00 1:00 ADT 1980 Sep 28
1249 -4:00 - AST
1250
1251# Montserrat
1252# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1253Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Plymouth
1254 -4:00 - AST
1255
1256# Nicaragua
1257# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1258Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
1259Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
1260Rule Nic 1992 only - Jan 1 4:00 1:00 D
1261Rule Nic 1992 only - Sep 24 0:00 0 S
1262# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1263Zone America/Managua -5:45:08 - LMT 1890
1264 -5:45 - MMT 1934 Jun 23 # Managua Mean Time
1265 -6:00 - CST 1973 May
1266 -5:00 - EST 1975 Feb 16
1267 -6:00 Nic C%sT 1993 Jan 1 4:00
1268 -5:00 - EST
1269
1270# Panama
1271# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1272Zone America/Panama -5:18:08 - LMT 1890
1273 -5:20 - PMT 1908 Apr 22 # Panama Mean Time
1274 -5:00 - EST
1275
1276# Puerto Rico
--- 24 unchanged lines hidden (view full) ---
1301
1302# St Vincent and the Grenadines
1303# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1304Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown
1305 -4:05 - KMT 1912 # Kingstown Mean Time
1306 -4:00 - AST
1307
1308# Turks and Caicos
1309# From Paul Eggert (1996-11-22):
1310# Shanks says they use US DST rules, but IATA SSIM (1991/1996)
1311# says they switch at midnight. Go with IATA SSIM.
1312# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1313Rule TC 1979 1986 - Apr lastSun 0:00 1:00 D
1314Rule TC 1979 max - Oct lastSun 0:00 0 S
1315Rule TC 1987 max - Apr Sun>=1 0:00 1:00 D
1316# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1317Zone America/Grand_Turk -4:44:32 - LMT 1890
1318 -5:07 - KMT 1912 Feb # Kingston Mean Time
1319 -5:00 TC E%sT
1320
1321# British Virgin Is
1322# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1323Zone America/Tortola -4:18:28 - LMT 1911 Jul # Road Town
1324 -4:00 - AST
1325
1326# Virgin Is
1327# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1328Zone America/St_Thomas -4:19:44 - LMT 1911 Jul # Charlotte Amalie
1329 -4:00 - AST
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> (1994-08-17):
9# A reliable and entertaining source about time zones is
--- 447 unchanged lines hidden (view full) ---
457Link America/Los_Angeles PST8PDT
458Link America/Indianapolis EST
459Link America/Phoenix MST
460Link Pacific/Honolulu HST
461
462################################################################################
463
464
465# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
466# A good source for time zone historical data outside the US is
467# Thomas G. Shanks, The International Atlas (3rd edition),
468# San Diego: ACS Publications, Inc. (1991).
469#
470# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
471# for recent time zone data is the International Air Transport
472# Association's Standard Schedules Information Manual (IATA SSIM),
473# published semiannually. Law sent in several helpful summaries
474# of the IATA's data after 1990.
475#
476# Except where otherwise noted, Shanks is the source for entries through 1990,
477# and IATA SSIM is the source for entries after 1990.
478#
479# Another source occasionally used is Edward W. Whitman, World Time Differences,
480# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
481# I found in the UCLA library.
482#
483# See the `europe' file for Greenland.
484#
485# See the `africa' file for time zone naming and abbreviation conventions.
486
--- 39 unchanged lines hidden (view full) ---
526Rule Canada 1918 only - Oct 31 2:00 0 S
527Rule Canada 1942 only - Feb 9 2:00 1:00 D
528Rule Canada 1945 only - Sep 30 2:00 0 S
529Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D
530Rule Canada 1974 max - Oct lastSun 2:00 0 S
531Rule Canada 1987 max - Apr Sun>=1 2:00 1:00 D
532
533
534# Newfoundland (except Labrador)
535
536# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
537Rule StJohns 1917 1918 - Apr Sun>=8 2:00 1:00 D
538Rule StJohns 1917 only - Sep 17 2:00 0 S
539Rule StJohns 1918 only - Oct 31 2:00 0 S
540# Whitman gives 1919 Apr 5 and 1920 Apr 5; go with Shanks.
541Rule StJohns 1919 only - May 5 23:00 1:00 D
542Rule StJohns 1919 only - Aug 12 23:00 0 S
--- 20 unchanged lines hidden (view full) ---
563Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S
564Rule StJohns 1960 max - Oct lastSun 2:00 0 S
565Rule StJohns 1987 only - Apr Sun>=1 2:00 1:00 D
566Rule StJohns 1988 only - Apr Sun>=1 2:00 2:00 DD
567Rule StJohns 1989 max - Apr Sun>=1 2:00 1:00 D
568# St John's has an apostrophe, but Posix file names can't have apostrophes.
569# Zone NAME GMTOFF RULES FORMAT [UNTIL]
570Zone America/St_Johns -3:30:52 - LMT 1884
571 -3:30:52 StJohns N%sT 1935 Mar 30
572 -3:30 StJohns N%sT
573
574
575# east Labrador
576
577# The name `Happy Valley-Goose Bay' is too long; use `Goose Bay'.
578# Zone NAME GMTOFF RULES FORMAT [UNTIL]
579Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay
580 -3:30:52 StJohns NST 1919
581 -3:30:52 - NST 1935 Mar 30
582 -3:30 - NST 1936
583 -3:30 StJohns N%sT 1966 Mar 15 2:00
584 -4:00 StJohns A%sT
585
586
587# west Labrador, New Brunswick, Nova Scotia, Prince Edward I
588
589# From Paul Eggert (1996-06-12):
590# Shanks writes that since 1970 most of this region has been like Halifax.
591# Many locales did not observe peacetime DST until 1972;
592# Glace Bay, NS is the largest that we know of.
593# Shanks also writes that Liverpool, NS was the only town in Canada to observe
594# DST in 1971 but not 1970; for now we'll assume this is a typo.
595
596# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
--- 243 unchanged lines hidden (view full) ---
840Zone America/Dawson_Creek -8:00:56 - LMT 1884
841 -8:00 Canada P%sT 1947
842 -8:00 Vanc P%sT 1972 Aug 30 2:00
843 -7:00 - MST
844
845
846# Northwest Territories, Yukon
847
848# From Paul Eggert (1996-10-07):
849# Dawson switched to PST in 1973. Inuvik switched to MST in 1979.
850# Shanks's table for Watson Lake is corrupted, so we have no data there.
851# Mathew Englander <mathew@io.org> (1996-10-07) gives the following refs:
852# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
853# c. 7 defines Yukon standard time as UTC-9. This is still valid;
854# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
855# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
856# * O.I.C. 1980/02 established DST.
857# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
858# Shanks says Yukon's 1973-10-28 switch was at 2:00; go with Englander.
859
860# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
861Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
862Rule NT_YK 1918 only - Oct 27 2:00 0 S
863Rule NT_YK 1919 only - May 25 2:00 1:00 D
864Rule NT_YK 1919 only - Nov 1 0:00 0 S
865Rule NT_YK 1942 only - Feb 9 2:00 1:00 D
866Rule NT_YK 1945 only - Sep 30 2:00 0 S
--- 13 unchanged lines hidden (view full) ---
880 -7:00 NT_YK M%sT
881Zone America/Inuvik -8:54:00 - LMT 1884
882 -8:00 NT_YK P%sT 1979 Apr lastSun 2:00
883 -7:00 NT_YK M%sT
884Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
885 -9:00 NT_YK Y%sT 1966 Jul 1 2:00
886 -8:00 NT_YK P%sT
887Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
888 -9:00 NT_YK Y%sT 1973 Oct 28 0:00
889 -8:00 NT_YK P%sT
890
891
892###############################################################################
893
894# Mexico
895
896# From Guy Harris:
--- 196 unchanged lines hidden (view full) ---
1093# uninhabited
1094
1095# Costa Rica
1096# Shanks gives some very odd dates for 1991, and stops there.
1097# For now, we won't guess further.
1098# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1099Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D
1100Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S
1101Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D
1102# IATA SSIM (1991-09) says the following was at 1:00; go with Shanks.
1103Rule CR 1991 only - Jul 1 0:00 0 S
1104Rule CR 1992 only - Mar 15 0:00 0 S
1105# There are too many San Joses elsewhere, so we'll use `Costa Rica'.
1106# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1107Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose
1108 -5:36 - SJMT 1921 Jan 15 # San Jose Mean Time
1109 -6:00 CR C%sT
1110# Coco
1111# no information; probably like America/Costa_Rica
1112
--- 26 unchanged lines hidden (view full) ---
1139Rule Cuba 1969 1977 - Apr lastSun 0:00 1:00 D
1140Rule Cuba 1969 1971 - Oct lastSun 0:00 0 S
1141Rule Cuba 1972 1974 - Oct 8 0:00 0 S
1142Rule Cuba 1975 1977 - Oct lastSun 0:00 0 S
1143Rule Cuba 1978 only - May 7 0:00 1:00 D
1144Rule Cuba 1978 1980 - Oct Sun>=8 0:00 0 S
1145Rule Cuba 1979 1980 - Mar Sun>=15 0:00 1:00 D
1146Rule Cuba 1981 1985 - May Sun>=5 0:00 1:00 D
1147Rule Cuba 1981 1990 - Oct Sun>=8 0:00 0 S
1148Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
1149Rule Cuba 1990 max - Apr Sun>=1 0:00 1:00 D
1150Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S
1151Rule Cuba 1996 max - Oct Sun>=1 0:00s 0 S
1152
1153# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1154Zone America/Havana -5:29:28 - LMT 1890
1155 -5:30 - HMT 1925 Jul 19 12:00 # Havana MT
1156 -5:00 Cuba C%sT
1157
1158# Dominica
1159# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 34 unchanged lines hidden (view full) ---
1194 -4:00 - AST
1195
1196# Guatemala
1197# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1198Rule Guat 1973 only - Nov 25 0:00 1:00 D
1199Rule Guat 1974 only - Feb 24 0:00 0 S
1200Rule Guat 1983 only - May 21 0:00 1:00 D
1201Rule Guat 1983 only - Sep 22 0:00 0 S
1202Rule Guat 1991 only - Mar 23 0:00 1:00 D
1203Rule Guat 1991 only - Sep 7 0:00 0 S
1204# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1205Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
1206 -6:00 Guat C%sT
1207
1208# Haiti
1209# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1210Rule Haiti 1983 only - May 8 0:00 1:00 D
1211Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D
1212Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S
1213# Shanks says AT is 2:00, but IATA SSIM (1991/1996) says 1:00s. Go with IATA.
1214Rule Haiti 1988 max - Apr Sun>=1 1:00s 1:00 D
1215Rule Haiti 1988 max - Oct lastSun 1:00s 0 S
1216# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1217Zone America/Port-au-Prince -4:49:20 - LMT 1890
1218 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT
1219 -5:00 Haiti E%sT
1220
1221# Honduras
1222# Shanks says 1921 Jan 1; go with Whitman's more precise Apr 1.
1223# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 8 unchanged lines hidden (view full) ---
1232# From U. S. Naval Observatory (1989-01-19):
1233# JAMAICA 5 H BEHIND UTC
1234
1235# From Shanks (1991):
1236# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1237Zone America/Jamaica -5:07:12 - LMT 1890 # Kingston
1238 -5:07 - KMT 1912 Feb # Kingston Mean Time
1239 -5:00 - EST 1974 Jan 6 2:00
1240 -5:00 US E%sT 1984
1241 -5:00 - EST
1242
1243# Martinique
1244# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1245Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France
1246 -4:04 - FFMT 1911 May # Fort-de-France MT
1247 -4:00 - AST 1980 Apr 6
1248 -4:00 1:00 ADT 1980 Sep 28
1249 -4:00 - AST
1250
1251# Montserrat
1252# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1253Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Plymouth
1254 -4:00 - AST
1255
1256# Nicaragua
1257# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1258Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
1259Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
1260Rule Nic 1992 only - Jan 1 4:00 1:00 D
1261Rule Nic 1992 only - Sep 24 0:00 0 S
1262# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1263Zone America/Managua -5:45:08 - LMT 1890
1264 -5:45 - MMT 1934 Jun 23 # Managua Mean Time
1265 -6:00 - CST 1973 May
1266 -5:00 - EST 1975 Feb 16
1267 -6:00 Nic C%sT 1993 Jan 1 4:00
1268 -5:00 - EST
1269
1270# Panama
1271# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1272Zone America/Panama -5:18:08 - LMT 1890
1273 -5:20 - PMT 1908 Apr 22 # Panama Mean Time
1274 -5:00 - EST
1275
1276# Puerto Rico
--- 24 unchanged lines hidden (view full) ---
1301
1302# St Vincent and the Grenadines
1303# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1304Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown
1305 -4:05 - KMT 1912 # Kingstown Mean Time
1306 -4:00 - AST
1307
1308# Turks and Caicos
1309# From Paul Eggert (1996-11-22):
1310# Shanks says they use US DST rules, but IATA SSIM (1991/1996)
1311# says they switch at midnight. Go with IATA SSIM.
1312# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1313Rule TC 1979 1986 - Apr lastSun 0:00 1:00 D
1314Rule TC 1979 max - Oct lastSun 0:00 0 S
1315Rule TC 1987 max - Apr Sun>=1 0:00 1:00 D
1316# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1317Zone America/Grand_Turk -4:44:32 - LMT 1890
1318 -5:07 - KMT 1912 Feb # Kingston Mean Time
1319 -5:00 TC E%sT
1320
1321# British Virgin Is
1322# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1323Zone America/Tortola -4:18:28 - LMT 1911 Jul # Road Town
1324 -4:00 - AST
1325
1326# Virgin Is
1327# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1328Zone America/St_Thomas -4:19:44 - LMT 1911 Jul # Charlotte Amalie
1329 -4:00 - AST