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 |