1# @(#)northamerica 7.11 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> (August 17, 1994): 9# A reliable and entertaining source about time zones is 10# Derek Howse, Greenwich time and the discovery of the longitude, 11# Oxford University Press (1980). 12 13############################################################################### 14 15# United States 16 17# From Arthur David Olson: 18# US Daylight Saving Time ended on the last Sunday of *October* in 1974. 19# See, for example, the front page of the Saturday, October 26, 1974 20# and Sunday, October 27, 1974 editions of the Washington Post. 21 22# From seismo!munnari!kre: 23# I recall also being told by someone once that Canada didn't have 24# the DST variations in 74/75 that the US did, but I am not nearly 25# sure enough of this to add anything. 26 27# From Arthur David Olson: 28# The above has been confirmed by Bob Devine; we'll go with it here. 29 30# From Arthur David Olson: 31# Before the Uniform Time Act of 1966 took effect in 1967, observance of 32# Daylight Saving Time in the US was by local option, except during wartime. 33 34# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 35Rule US 1918 1919 - Mar lastSun 2:00 1:00 D 36Rule US 1918 1919 - Oct lastSun 2:00 0 S 37Rule US 1942 only - Feb 9 2:00 1:00 W # War 38Rule US 1945 only - Sep 30 2:00 0 S 39Rule US 1967 max - Oct lastSun 2:00 0 S 40Rule US 1967 1973 - Apr lastSun 2:00 1:00 D 41Rule US 1974 only - Jan 6 2:00 1:00 D 42Rule US 1975 only - Feb 23 2:00 1:00 D 43Rule US 1976 1986 - Apr lastSun 2:00 1:00 D 44Rule US 1987 max - Apr Sun>=1 2:00 1:00 D 45 46# From Bob Devine (January 28, 1988): 47# ...Alaska (and Hawaii) had the timezone names changed in 1967. 48# old new 49# Pacific Standard Time(PST) -same- 50# Yukon Standard Time(YST) -same- 51# Central Alaska S.T. (CAT) Alaska-Hawaii St[an]dard Time (AHST) 52# Nome Standard Time (NT) Bering Standard Time (BST) 53# 54# ...Alaska's timezone lines were redrawn in 1983 to give only 2 tz. 55# The YST zone now covers nearly all of the state, AHST just part 56# of the Aleutian islands. No DST. 57 58# From U. S. Naval Observatory (January 19, 1989): 59# USA EASTERN 5 H BEHIND UTC NEW YORK, WASHINGTON 60# USA EASTERN 4 H BEHIND UTC APR 3 - OCT 30 61# USA CENTRAL 6 H BEHIND UTC CHICAGO, HOUSTON 62# USA CENTRAL 5 H BEHIND UTC APR 3 - OCT 30 63# USA MOUNTAIN 7 H BEHIND UTC DENVER 64# USA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 30 65# USA PACIFIC 8 H BEHIND UTC L.A., SAN FRANCISCO 66# USA PACIFIC 7 H BEHIND UTC APR 3 - OCT 30 67# USA ALASKA STD 9 H BEHIND UTC MOST OF ALASKA (AKST) 68# USA ALASKA STD 8 H BEHIND UTC APR 3 - OCT 30 (AKDT) 69# USA ALEUTIAN 10 H BEHIND UTC ISLANDS WEST OF 170W 70# USA - " - 9 H BEHIND UTC APR 3 - OCT 30 71# USA HAWAII 10 H BEHIND UTC 72# USA BERING 11 H BEHIND UTC SAMOA, MIDWAY 73 74# From Arthur David Olson (January 21, 1989): 75# The above dates are for 1988. 76# Note the "AKST" and "AKDT" abbreviations, the claim that there's 77# no DST in Samoa, and the claim that there is DST in Alaska and the 78# Aleutians. 79 80# From Arthur David Olson (February 13, 1988): 81# Legal standard time zone names, from United States Code (1982 Edition and 82# Supplement III), Title 15, Chapter 6, Section 260 and forward. First, names 83# up to April 1, 1967 (when most provisions of the Uniform Time Act of 1966 84# took effect), as explained in sections 263 and 261: 85# (none) 86# United States standard eastern time 87# United States standard mountain time 88# United States standard central time 89# United States standard Pacific time 90# (none) 91# United States standard Alaska time 92# (none) 93# Next, names from April 1, 1967 until November 30, 1983 (the date for 94# public law 98-181): 95# Atlantic standard time 96# eastern standard time 97# central standard time 98# mountain standard time 99# Pacific standard time 100# Yukon standard time 101# Alaska-Hawaii standard time 102# Bering standard time 103# And after November 30, 1983: 104# Atlantic standard time 105# eastern standard time 106# central standard time 107# mountain standard time 108# Pacific standard time 109# Alaska standard time 110# Hawaii-Aleutian standard time 111# Samoa standard time 112# The law doesn't give abbreviations. 113 114# From Paul Eggert <eggert@twinsun.com> (August 16, 1994): 115# Howse writes that Alaska switched from the Julian to the Gregorian calendar, 116# and from east-of-GMT to west-of-GMT days, in 1867 when the US purchased it 117# from Russia. We don't have this data pinned down yet, though. 118 119# Easy stuff first--including Alaska, where we ignore history (since we 120# can't tell if we should give Yukon time or Alaska-Hawaii time for "old" 121# times). 122 123# Zone NAME GMTOFF RULES FORMAT [UNTIL] 124Zone America/New_York -5:00 US E%sT 125Zone America/Chicago -6:00 US C%sT 126Zone America/Denver -7:00 US M%sT 127Zone America/Los_Angeles -8:00 US P%sT 128Zone America/Anchorage -9:00 US AK%sT 129 # AK%sT is the abbreviation per USNO 130
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131# ZONE-DESCR America New_York United_States Eastern time (except Indiana and Michigan) 132# ZONE-DESCR America Chicago United_States Central time 133# ZONE-DESCR America Denver United_States Mountain time (except Arizona) 134# ZONE-DESCR America Los_Angeles United_States Pacific time 135# ZONE-DESCR America Anchorage United_States Alaska time 136 |
137# Mainland US areas that are always Standard as of 1986. 138 139Zone America/Fort_Wayne -5:00 US E%sT 1946 140 -5:00 - EST # Always EST as of 1986
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141 |
142# From Arthur David Olson (October 28, 1991): 143# An article on page A3 of the Sunday, October 27, 1991 Washington Post 144# notes that Starke County switched from Central time to Eastern time as of 145# October 27, 1991. 146Zone America/Knox_IN -6:00 US C%sT 1991 Oct 27 2:00 147 -5:00 - EST # Always EST as of 1991 148Zone America/Phoenix -7:00 US M%sT 1946 149 -7:00 - MST # Always MST as of 1986 150
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151# ZONE-DESCR America Fort_Wayne United_States Indiana (except Starke County) 152# ZONE-DESCR America Knox_IN United_States Indiana (Starke County) 153# ZONE-DESCR America Phoenix United_States Arizona (except Navajo Nation) 154# ZONE-DESCR . Navajo United_States Arizona (Navajo Nation) 155 |
156# From Arthur David Olson (February 13, 1988): 157# However. . .a writer from the Inter Tribal Council of Arizona, Inc., 158# notes in private correspondence dated 12/28/87 that "Presently, only the 159# Navajo Nation participates in the Daylight Saving Time policy, due to its 160# large size and location in three states." (The "only" means that other 161# tribal nations don't use DST.) 162 163Link America/Denver Navajo 164 165# From Bob Devine (January 28, 1988): 166# Michigan didn't observe DST from 1968 to 1973. 167 168Zone America/Detroit -5:00 US E%sT 1968 169 -5:00 - EST 1973 170 -5:00 US E%sT 171
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172# ZONE-DESCR America Detroit United_States Michigan 173 |
174# Samoa just changes names. No DST, per Naval Observatory. 175# 176# Howse writes that in 1879 the King of Samoa decided to change 177# ``the date in his kingdom from the Antipodean to the American system, 178# ordaining -- by a masterpiece of diplomatic flattery -- that 179# the Fourth of July should be celebrated twice in that year.'' 180 181Zone Pacific/Samoa 12:37:12 - LMT 1879 Jul 5 182 -11:22:48 - LMT 1911 183 -11:30 - SST 1950 184 -11:00 - NST 1967 Apr # N=Nome 185 -11:00 - BST 1983 Nov 30 # B=Bering 186 -11:00 - SST # S=Samoa 187 188Zone Pacific/Midway -11:49:28 - LMT 1901 189 -11:00 - NST 1967 Apr # N=Nome 190 -11:00 - BST 1983 Nov 30 # B=Bering 191 -11:00 - SST # S=Samoa 192 193# Aleutian has a name change. DST, per Naval Observatory. 194 195Zone America/Atka -10:00 US AH%sT 1983 Nov 30 196 -10:00 US HA%sT 197 198# From Arthur David Olson: 199# And then there's Hawaii. 200# DST was observed for one day in 1933; 201# Standard time was change by half an hour in 1947; 202# it's always standard as of 1986. 203 204Zone Pacific/Honolulu -10:30 US H%sT 1933 Apr 30 2:00 205 -10:30 1:00 HDT 1933 May 1 2:00 206 -10:30 US H%sT 1947 Jun 8 2:00 207 -10:00 - HST 208
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209# ZONE-DESCR Pacific Samoa United_States American Samoa 210# ZONE-DESCR Pacific Samoa Western_Samoa All points 211# ZONE-DESCR Pacific Midway United_States Midway Island 212# ZONE-DESCR America Atka United_States Aleutian Islands 213# ZONE-DESCR Pacific Honolulu United_States Hawaii 214 |
215# Navassa 216# no information; probably like US/Eastern 217 218 219# Old names, for S5 users 220 221# Link LINK-FROM LINK-TO 222Link America/New_York EST5EDT 223Link America/Chicago CST6CDT 224Link America/Denver MST7MDT 225Link America/Los_Angeles PST8PDT 226Link America/Fort_Wayne EST 227Link America/Phoenix MST 228Link Pacific/Honolulu HST 229 230################################################################################ 231 232 233# From Paul Eggert <eggert@twinsun.com> (November 18, 1993): 234# A good source for time zone historical data outside the U.S. is 235# Thomas G. Shanks, The International Atlas (3rd edition), 236# San Diego: ACS Publications, Inc. (1991). 237# Except where otherwise noted, it is the source for the data below. 238# 239# Another source occasionally used is Edward W. Whitman, World Time Differences, 240# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which 241# I found in the UCLA library. 242# 243# I invented the abbreviation SPST for St Pierre Standard Time; SPDT likewise. 244# Corrections are welcome! 245# 246# See the `africa' file for Zone naming conventions. 247 248 249 250# Canada 251 252# Canada is reportedly lots easier than the US--leastways since 1951. 253# I don't know what they did before then. 254# 4.3BSD claims that it's perfectly regular. 255# According to a posting in "comp.bugs.misc", "comp.unix.wizards", etc. 256# on February 8, 1987, by Dave Sherman of the Law Society of Upper Canada, 257# "...Canada (well, Ontario and at least some of the other provinces) are 258# adopting the new daylight savings time rules...". We assume all of 259# Canada is doing so. 260 261# From Bob Devine (January 28, 1988): 262# All of Canada did have DST from your first rule except Saskatchewan. 263# Which parts did not observe DST is hard to pinpoint but most of the 264# province follows the rules. 265# NOTE: those that didn't have DST for that rule, also 266# probably did not have it for several years previous. 267 268# From U. S. Naval Observatory (January 19, 1989): 269# CANADA NEW FDL 3.5H BEHIND UTC ST.JOHN'S 270# CANADA NEW FDL 1.5H BEHIND UTC APR 3 - OCT 29 271# CANADA ATLANTIC 4 H BEHIND UTC HALIFAX 272# CANADA ATLANTIC 3 H BEHIND UTC APR 3 - OCT 29 273# CANADA EASTERN 5 H BEHIND UTC TORONTO, MONTREAL, OTTAWA 274# CANADA EASTERN 4 H BEHIND UTC APR 3 - OCT 29 275# CANADA CENTRAL 6 H BEHIND UTC REGINA, WINNIPEG 276# CANADA CENTRAL 5 H BEHIND UTC APR 3 - OCT 29 277# CANADA MOUNTAIN 7 H BEHIND UTC CALGARY, EDMONTON 278# CANADA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 29 279# CANADA PACIFIC 8 H BEHIND UTC VANCOUVER 280# CANADA PACIFIC 7 H BEHIND UTC APR 3 - OCT 29 281# CANADA YUKON SAME AS PACIFIC DAWSON 282 283# From Arthur David Olson (January 21, 1989): 284# April 3 fell on a Sunday in 1988; October 29 fell on a Sunday in 1989. Ahem. 285# Note claim that there's double DST in Newfoundland and that Yukon should 286# be same as Pacific. 287 288# From W. Jones (jones@skdad.usask.ca) (November 6, 1992): 289# The. . .below is based on information I got from our law library, the 290# provincial archives, and the provincial Community Services department. 291# A precise history would require digging through newspaper archives, and 292# since you didn't say what you wanted, I didn't bother. 293# 294# Saskatchewan is split by a time zone meridian (105W) and over the years 295# the boundary became pretty ragged as communities near it reevaluated 296# their affiliations in one direction or the other. In 1965 a provincial 297# referendum favoured legislating common time practices. 298# 299# On 15 April 1966 the Time Act (c. T-14, Revised Statutes of 300# Saskatchewan 1978) was proclaimed, and established that the eastern 301# part of Saskatchewan would use CST year round, that districts in 302# northwest Saskatchewan would by default follow CST but could opt to 303# follow Mountain Time rules (thus 1 hour difference in the winter and 304# zero in the summer), and that districts in southwest Saskatchewan would 305# by default follow MT but could opt to follow CST. 306# 307# It took a few years for the dust to settle (I know one story of a town 308# on one time zone having its school in another, such that a mom had to 309# serve her family lunch in two shifts), but presently it seems that only 310# a few towns on the border with Alberta (e.g. Lloydminster) follow MT 311# rules any more; all other districts appear to have used CST year round 312# since sometime in the 1960s. 313# 314# Here's how I would summarize things. Establish a "Saskatchewan" CST 315# time zone, and note that it officially exists as of 15 April 1966. Any 316# current exceptions can put themselves in the "Mountain" zone, since 317# those are the rules they follow. Any past exceptions can be forgotten, 318# since that's what those who live here have done. 319 320# From Arthur David Olson (November 21, 1992): 321# East-Saskatchewan kept to avoid problems for folks using that zone by name; 322# plain Saskatchewan added. 323 324 325# From Shanks (1991): 326# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 327Rule StJohns 1884 only - Jan 1 0:00 0 S 328Rule StJohns 1917 1918 - Apr Sun>=8 2:00 1:00 D 329Rule StJohns 1917 only - Sep 17 2:00 0 S 330Rule StJohns 1918 only - Oct 31 2:00 0 S 331# Whitman gives 1919 Apr 5 and 1920 Apr 5; go with Shanks. 332Rule StJohns 1919 only - May 5 23:00 1:00 D 333Rule StJohns 1919 only - Aug 12 23:00 0 S 334# For 1931-1935 Whitman gives Apr same date; go with Shanks. 335Rule StJohns 1920 1935 - May Sun>=1 23:00 1:00 D 336Rule StJohns 1920 1935 - Oct lastSun 23:00 0 S 337# For 1936-1941 Shanks gives May Mon>=9 and Oct Mon>=2; go with Whitman. 338Rule StJohns 1936 1941 - May Sun>=8 0:00 1:00 D 339Rule StJohns 1936 1941 - Oct Sun>=1 0:00 0 S 340# Shanks gives 1942 May 11 - 1945 Sep 30; go with Whitman. 341Rule StJohns 1942 only - Mar 1 0:00 1:00 D 342Rule StJohns 1942 only - Dec 31 0:00 0 S 343Rule StJohns 1943 only - May 30 0:00 1:00 D 344Rule StJohns 1943 only - Sep 5 0:00 0 S 345Rule StJohns 1944 only - Jul 10 0:00 1:00 D 346Rule StJohns 1944 only - Sep 2 0:00 0 S 347Rule StJohns 1945 only - Jan 1 0:00 1:00 D 348Rule StJohns 1945 only - Oct 7 2:00 0 S 349# For 1946-9 Whitman gives May 5,4,9,1 - Oct 1,5,3,2, and for 1950 he gives 350# Apr 30 - Sep 24; go with Shanks. 351Rule StJohns 1946 1950 - May Sun>=8 2:00 1:00 D 352Rule StJohns 1946 1950 - Oct Sun>=2 2:00 0 S 353Rule StJohns 1951 1986 - Apr lastSun 2:00 1:00 D 354Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S 355Rule StJohns 1960 max - Oct lastSun 2:00 0 S 356Rule StJohns 1987 only - Apr Sun>=1 2:00 1:00 D 357Rule StJohns 1988 only - Apr Sun>=1 2:00 2:00 D 358Rule StJohns 1989 max - Apr Sun>=1 2:00 1:00 D 359# St John's has an apostrophe, but Posix file names can't have apostrophes. 360# Zone NAME GMTOFF RULES FORMAT [UNTIL] 361Zone America/St_Johns -3:30:52 - LMT 1884 362 -3:31 StJohns N%sT 1935 Mar 30 363 -3:30 StJohns N%sT 364
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365# ZONE-DESCR America St_Johns Canada Newfoundland 366 |
367# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 368Rule Halifax 1902 only - Jun 15 0:00 0 S 369Rule Halifax 1916 only - Apr 1 0:00 1:00 D 370Rule Halifax 1916 only - Oct 1 0:00 0 S 371Rule Halifax 1918 only - Apr 14 2:00 1:00 D 372Rule Halifax 1918 only - Oct 31 2:00 0 S 373Rule Halifax 1920 only - May 9 0:00 1:00 D 374Rule Halifax 1920 only - Aug 29 0:00 0 S 375Rule Halifax 1921 only - May 6 0:00 1:00 D 376Rule Halifax 1921 1922 - Sep 5 0:00 0 S 377Rule Halifax 1922 only - Apr 30 0:00 1:00 D 378Rule Halifax 1923 1925 - May Sun>=1 0:00 1:00 D 379Rule Halifax 1923 only - Sep 4 0:00 0 S 380Rule Halifax 1924 only - Sep 15 0:00 0 S 381Rule Halifax 1925 only - Sep 28 0:00 0 S 382Rule Halifax 1926 only - May 16 0:00 1:00 D 383Rule Halifax 1926 only - Sep 13 0:00 0 S 384Rule Halifax 1927 only - May 1 0:00 1:00 D 385Rule Halifax 1927 only - Sep 26 0:00 0 S 386Rule Halifax 1928 1931 - May Sun>=8 0:00 1:00 D 387Rule Halifax 1928 only - Sep 9 0:00 0 S 388Rule Halifax 1929 only - Sep 3 0:00 0 S 389Rule Halifax 1930 only - Sep 15 0:00 0 S 390Rule Halifax 1931 1932 - Sep Mon>=24 0:00 0 S 391Rule Halifax 1933 only - Apr 30 0:00 1:00 D 392Rule Halifax 1933 only - Oct 2 0:00 0 S 393Rule Halifax 1934 only - May 20 0:00 1:00 D 394Rule Halifax 1934 only - Sep 16 0:00 0 S 395Rule Halifax 1935 only - Jun 2 0:00 1:00 D 396Rule Halifax 1935 only - Sep 30 0:00 0 S 397Rule Halifax 1936 only - Jun 1 0:00 1:00 D 398Rule Halifax 1936 only - Sep 14 0:00 0 S 399Rule Halifax 1937 1938 - May Sun>=1 0:00 1:00 D 400Rule Halifax 1937 1941 - Sep Mon>=24 0:00 0 S 401Rule Halifax 1939 only - May 28 0:00 1:00 D 402Rule Halifax 1940 1941 - May Sun>=1 0:00 1:00 D 403Rule Halifax 1942 only - Feb 9 2:00 1:00 D 404Rule Halifax 1945 1959 - Sep lastSun 2:00 0 S 405Rule Halifax 1946 1959 - Apr lastSun 2:00 1:00 D 406Rule Halifax 1962 1986 - Apr lastSun 2:00 1:00 D 407Rule Halifax 1962 max - Oct lastSun 2:00 0 S 408Rule Halifax 1987 max - Apr Sun>=1 2:00 1:00 D 409# Zone NAME GMTOFF RULES FORMAT [UNTIL] 410Zone America/Halifax -4:14:24 - LMT 1902 Jun 15 411 -4:00 Halifax A%sT 412
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413# ZONE-DESCR America Halifax Canada Atlantic time 414 |
415# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 416Rule Mont 1884 only - Jan 1 0:00 0 S 417Rule Mont 1917 only - Mar 25 2:00 1:00 D 418Rule Mont 1917 only - Apr 24 0:00 0 S 419Rule Mont 1918 only - Apr 14 2:00 1:00 D 420Rule Mont 1918 only - Oct 31 2:00 0 S 421Rule Mont 1919 only - Mar 31 2:30 1:00 D 422Rule Mont 1919 only - Oct 25 2:30 0 S 423Rule Mont 1920 only - May 2 2:30 1:00 D 424Rule Mont 1920 only - Oct 3 2:30 0 S 425Rule Mont 1921 only - May 1 2:00 1:00 D 426Rule Mont 1921 only - Oct 2 2:30 0 S 427Rule Mont 1922 only - Apr 30 2:00 1:00 D 428Rule Mont 1922 only - Oct 1 2:30 0 S 429Rule Mont 1924 only - May 17 2:00 1:00 D 430Rule Mont 1924 1926 - Sep lastSun 2:30 0 S 431Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D 432Rule Mont 1927 only - May 1 0:00 1:00 D 433Rule Mont 1927 1932 - Sep Sun>=25 0:00 0 S 434Rule Mont 1928 1931 - Apr Sun>=25 0:00 1:00 D 435Rule Mont 1932 only - May 1 0:00 1:00 D 436Rule Mont 1933 1940 - Apr Sun>=24 0:00 1:00 D 437Rule Mont 1933 only - Oct 1 0:00 0 S 438Rule Mont 1934 1939 - Sep Sun>=24 0:00 0 S 439Rule Mont 1945 1948 - Sep lastSun 2:00 0 S 440Rule Mont 1946 1986 - Apr lastSun 2:00 1:00 D 441Rule Mont 1949 1950 - Oct lastSun 2:00 0 S 442Rule Mont 1951 1956 - Sep lastSun 2:00 0 S 443Rule Mont 1957 max - Oct lastSun 2:00 0 S 444Rule Mont 1987 max - Apr Sun>=1 2:00 1:00 D 445# Zone NAME GMTOFF RULES FORMAT [UNTIL] 446Zone America/Montreal -4:54:16 - LMT 1884 447 -5:00 Mont E%sT 448
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449# ZONE-DESCR America Montreal Canada Eastern time 450 |
451# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 452Rule Winn 1887 only - Jul 16 0:00 0 S 453Rule Winn 1916 only - Apr 23 0:00 1:00 D 454Rule Winn 1916 only - Sep 17 0:00 0 S 455Rule Winn 1918 only - Apr 14 2:00 1:00 D 456Rule Winn 1918 only - Oct 31 2:00 0 S 457Rule Winn 1937 only - May 16 2:00 1:00 D 458Rule Winn 1937 only - Sep 23 2:00 0 S 459Rule Winn 1942 only - Feb 9 2:00 1:00 D 460Rule Winn 1945 only - Sep lastSun 2:00 0 S 461Rule Winn 1946 only - May 12 2:00 1:00 D 462Rule Winn 1946 only - Oct 13 2:00 0 S 463Rule Winn 1947 1949 - Apr lastSun 2:00 1:00 D 464Rule Winn 1947 1958 - Sep lastSun 2:00 0 S 465Rule Winn 1948 only - May 1 2:00 1:00 D 466Rule Winn 1948 1960 - Apr lastSun 2:00 1:00 D 467Rule Winn 1959 only - Oct lastSun 2:00 0 S 468Rule Winn 1960 only - Sep lastSun 2:00 0 S 469Rule Winn 1963 only - Apr lastSun 2:00 1:00 D 470Rule Winn 1963 only - Sep lastSun 2:00 0 S 471Rule Winn 1966 1986 - Apr lastSun 2:00 1:00 D 472Rule Winn 1966 max - Sep lastSun 2:00 0 S 473Rule Winn 1987 max - Apr Sun>=1 2:00 1:00 D 474# Zone NAME GMTOFF RULES FORMAT [UNTIL] 475Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16 476 -6:00 Winn C%sT 477
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478# ZONE-DESCR America Winnipeg Canada Manitoba 479 |
480# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 481Rule Regina 1905 only - Sep 1 0:00 0 S 482Rule Regina 1918 only - Apr 14 2:00 1:00 D 483Rule Regina 1918 only - Oct 31 2:00 0 S 484Rule Regina 1930 1934 - May Sun>=1 0:00 1:00 D 485Rule Regina 1930 1934 - Oct Sun>=1 0:00 0 S 486Rule Regina 1937 1941 - Apr Sun>=8 0:00 1:00 D 487Rule Regina 1937 only - Oct Sun>=8 0:00 0 S 488Rule Regina 1938 only - Oct Sun>=1 0:00 0 S 489Rule Regina 1939 1941 - Oct Sun>=8 0:00 0 S 490Rule Regina 1942 only - Feb 9 2:00 1:00 D 491Rule Regina 1945 only - Sep lastSun 2:00 0 S 492Rule Regina 1946 only - Apr 14 2:00 1:00 D 493Rule Regina 1946 only - Oct 13 2:00 0 S 494Rule Regina 1947 1960 - Apr lastSun 2:00 1:00 D 495Rule Regina 1947 1959 - Sep lastSun 2:00 0 S 496# Zone NAME GMTOFF RULES FORMAT [UNTIL] 497Zone America/Regina -6:58:36 - LMT 1905 Sep 498 -7:00 Regina M%sT 1966 Apr 15 499 -6:00 - CST 500
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501# ZONE-DESCR America Regina Canada Saskatchewan 502 |
503# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 504Rule Edm 1906 only - Sep 1 0:00 0 S 505Rule Edm 1918 1919 - Apr Sun>=8 2:00 1:00 D 506Rule Edm 1918 only - Oct 31 2:00 0 S 507Rule Edm 1919 only - May 27 2:00 0 S 508Rule Edm 1920 1923 - Apr lastSun 2:00 1:00 D 509Rule Edm 1920 only - Oct lastSun 2:00 0 S 510Rule Edm 1921 1923 - Sep lastSun 2:00 0 S 511Rule Edm 1942 only - Feb 9 2:00 1:00 D 512Rule Edm 1945 only - Sep lastSun 2:00 0 S 513Rule Edm 1947 only - Apr lastSun 2:00 1:00 D 514Rule Edm 1947 only - Sep lastSun 2:00 0 S 515Rule Edm 1967 only - Apr lastSun 2:00 1:00 D 516Rule Edm 1967 only - Oct lastSun 2:00 0 S 517Rule Edm 1969 only - Apr lastSun 2:00 1:00 D 518Rule Edm 1969 only - Oct lastSun 2:00 0 S 519Rule Edm 1972 1986 - Apr lastSun 2:00 1:00 D 520Rule Edm 1972 max - Oct lastSun 2:00 0 S 521Rule Edm 1987 max - Apr Sun>=1 2:00 1:00 D 522# Zone NAME GMTOFF RULES FORMAT [UNTIL] 523Zone America/Edmonton -7:33:52 - LMT 1906 Sep 524 -7:00 Edm M%sT 525
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526# ZONE-DESCR America Edmonton Canada Alberta 527 |
528# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 529Rule Vanc 1884 only - Jan 1 0:00 0 S 530Rule Vanc 1918 only - Apr 14 2:00 1:00 D 531Rule Vanc 1918 only - Oct 31 2:00 0 S 532Rule Vanc 1942 only - Feb 9 2:00 1:00 D 533Rule Vanc 1945 only - Sep 30 2:00 0 S 534Rule Vanc 1946 1986 - Apr lastSun 2:00 1:00 D 535Rule Vanc 1946 only - Oct 13 2:00 0 S 536Rule Vanc 1947 1961 - Sep lastSun 2:00 0 S 537Rule Vanc 1962 max - Oct lastSun 2:00 0 S 538Rule Vanc 1987 max - Apr Sun>=1 2:00 1:00 D 539# Zone NAME GMTOFF RULES FORMAT [UNTIL] 540Zone America/Vancouver -8:12:28 - LMT 1884 541 -8:00 Vanc P%sT 542
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543# ZONE-DESCR America Vancouver Canada British Columbia 544 |
545# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 546Rule Yukon 1900 only - Jan 1 0:00 0 S 547Rule Yukon 1918 only - Apr 14 2:00 1:00 D 548Rule Yukon 1918 only - Oct 27 2:00 0 S 549Rule Yukon 1919 only - May 25 2:00 1:00 D 550Rule Yukon 1919 only - Nov 1 0:00 0 S 551Rule Yukon 1942 only - Feb 9 2:00 1:00 D 552Rule Yukon 1965 only - Apr 25 0:00 1:00 D 553Rule Yukon 1965 only - Oct 31 2:00 0 S 554Rule Yukon 1980 1986 - Apr lastSun 2:00 1:00 D 555Rule Yukon 1980 max - Oct lastSun 2:00 0 S 556Rule Yukon 1987 max - Apr Sun>=1 2:00 1:00 D 557# Zone NAME GMTOFF RULES FORMAT [UNTIL] 558Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20 559 -9:00 Yukon Y%sT 1966 Jul 560 -8:00 Yukon P%sT 561# Parts of Yukon (e.g. Dawson) didn't switch to -8:00 until 1973 Oct 28. 562
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563# ZONE-DESCR America Whitehorse Canada Yukon Territory 564 |
565############################################################################### 566 567# Mexico 568 569# From Guy Harris: 570# Rules are from the Official Airline Guide, Worldwide Edition, for 1987. 571# Rules prior to 1987 are unknown. 572# The comments in the OAG say "Only Ensenada, Mexicale, San Felipe and Tijuana 573# observe DST." This is presumably Baja California Norte, above 28th parallel, 574# as listed there; Mexico/BajaSur is for "Baja California Sur and N. Pacific 575# Coast (States of Sinaloa and Sonora)." 576 577# From Bob Devine (January 28, 1988): 578# The Federal District (where Mexico City is) has observed [DST] several 579# times but not recently. 580# 581# I don't where to drawn the line in the North Baja area. 28th latitude 582# sounds good -- but it may be higher (how far [d]o radio stations from 583# San Diego affect culture?). 584# 585# The dates of DST probably go back to 1981. The rules are the same as 586# US's. This is going to be a headache for US presidential electi[o]n years! 587 588# From Arthur David Olson (February 13, 1988) 589# Since the 1981 starting date is only "probable," we'll keep the 1987 590# starting date below. 591 592# From U. S. Naval Observatory (January 19, 1989): 593# MEXICO BAJA CAL N 7 H BEHIND UTC BAJA CALIFORNIA SUR AND 594# MEXICO BAJA CAL N N. PACIFIC COAST (STATES 595# MEXICO BAJA CAL N OF SINALOA AND SONORA) 596# MEXICO BAJA CAL N 8 H BEHIND UTC ABOVE 28TH PARALLAL APR 3 597# MEXICO BAJA CAL N - OCT 29 598# MEXICO BAJA CAL N 7 H BEHIND UTC ABOVE 28TH PARALLAL APR 3 599# MEXICO BAJA CAL N - 0CT 29 600# MEXICO 6 H BEHIND UTC STATES OF DURANGO, 601# MEXICO COAHUILA, NUEVO LEON, 602# MEXICO TAMAULIPAS 603# MEXICO 5 H BEHIND UTC STATES OF DURANGO, 604# MEXICO COAHUILA, NUEVO LEON, 605# MEXICO TAMAULIPAS APR 3 - OCT 29 606# MEXICO 6 H BEHIND UTC GENERAL MEXICO, STATES OF 607# MEXICO CAMPECHE, QUINTANA ROO AND 608# MEXICO YUCATAN 609 610# From Arthur David Olson (January 21, 1989): 611# April 3 fell on a Sunday in 1988; October 29 fell on a Sunday in 1989. Ahem. 612# USNO claims there should be four Mexican zones rather than three: 613# a zone that's GMT-8 with DST; a zone that's always GMT-7; 614# a zone that's GMT-6 with DST; and a zone that's always GMT-6. 615 616# From Paul Eggert <eggert@twinsun.com> (November 18, 1993): 617# Shanks also says there are four zones, but disagrees about the fourth. 618# Instead of GMT-6 with DST, he says there's GMT-8 without DST. 619 620# From Shanks (1991): 621# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 622Rule Mexico 1922 only - Jan 1 0:00 0 S 623Rule Mexico 1939 only - Feb 5 0:00 1:00 D 624Rule Mexico 1939 only - Jun 25 0:00 0 S 625Rule Mexico 1940 only - Dec 9 0:00 1:00 D 626Rule Mexico 1941 only - Apr 1 0:00 0 S 627Rule Mexico 1943 only - Dec 16 0:00 1:00 D 628Rule Mexico 1944 only - May 1 0:00 0 S 629Rule Mexico 1950 only - Feb 12 0:00 1:00 D 630Rule Mexico 1950 only - Jul 30 0:00 0 S 631Rule BajaN 1950 1966 - Apr lastSun 2:00 1:00 D 632Rule BajaN 1950 1961 - Sep lastSun 2:00 0 S 633Rule BajaN 1961 1966 - Oct lastSun 2:00 0 S 634# Zone NAME GMTOFF RULES FORMAT [UNTIL] 635Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 636 -7:00 - MST 1927 Jun 10 23:00 637 -6:00 - CST 1930 Nov 15 638 -7:00 - MST 1931 May 1 23:00 639 -6:00 - CST 1931 Oct 640 -7:00 - MST 1932 Mar 30 23:00 641 -6:00 Mexico C%sT
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642# ZONE-DESCR America Mexico_City Mexico Mexico City |
643Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20 644 -7:00 - MST 1927 Jun 10 23:00 645 -6:00 - CST 1930 Nov 15 646 -7:00 - MST 1931 May 1 23:00 647 -6:00 - CST 1931 Oct 648 -7:00 - MST 1932 Mar 30 23:00 649 -6:00 - CST 1942 Apr 650 -7:00 - MST 1949 Jan 14 651 -8:00 - PST 1970 652 -7:00 - MST
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653# ZONE-DESCR America Mazatlan Mexico Mazatlan |
654Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 655 -8:00 - PST 1927 Jun 10 23:00 656 -7:00 - MST 1930 Nov 16 657 -8:00 - PST 1942 Apr 658 -7:00 - MST 1949 Jan 14 659 -8:00 BajaN P%sT 1967 Apr lastSun 2:00 660 -8:00 US P%sT
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661# ZONE-DESCR America Tijuana Mexico Baja California Norte |
662Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32 663 -8:00 - PST 1927 Jun 10 23:00 664 -7:00 - MST 1930 Nov 16 665 -8:00 - PST 1942 Apr 666 -7:00 - MST 1949 Jan 14 667 -8:00 - PST
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668# ZONE-DESCR America Ensenada Mexico Ensenada 669 |
670# 671# Revillagigedo Is 672# no information 673 674############################################################################### 675 676# Anguilla 677# Zone NAME GMTOFF RULES FORMAT [UNTIL] 678Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2 679 -4:00 - AST 680
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681# ZONE-DESCR America Anguilla Anguilla All points 682 |
683# Antigua and Barbuda 684# Zone NAME GMTOFF RULES FORMAT [UNTIL] 685Zone America/Antigua -4:07:12 - LMT 1912 Mar 2 686 -5:00 - EST 1951 687 -4:00 - AST 688
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689# ZONE-DESCR America Antigua Antigua All points 690 |
691# Bahamas 692# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 693Rule Bahamas 1912 only - Mar 2 0:00 0 S 694Rule Bahamas 1964 max - Oct lastSun 2:00 0 S 695Rule Bahamas 1964 1986 - Apr lastSun 2:00 1:00 D 696Rule Bahamas 1987 max - Apr Sun>=1 2:00 1:00 D 697# Zone NAME GMTOFF RULES FORMAT [UNTIL] 698Zone America/Nassau -5:09:24 - LMT 1912 Mar 2 699 -5:00 Bahamas E%sT 700
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701# ZONE-DESCR America Nassau Bahamas All points 702 |
703# Barbados 704# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 705Rule Barb 1932 only - Jan 1 0:00 0 S 706Rule Barb 1977 only - Jun 12 2:00 1:00 D 707Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S 708Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D 709Rule Barb 1979 only - Sep 30 2:00 0 S 710Rule Barb 1980 only - Sep 25 2:00 0 S 711# Zone NAME GMTOFF RULES FORMAT [UNTIL] 712Zone America/Barbados -3:58:28 - LMT 1924 # Bridgetown 713 -3:58 - BMT 1932 # Bridgetown Mean Time 714 -4:00 Barb A%sT 715
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716# ZONE-DESCR America Barbados Barbados All points 717 |
718# Belize 719# Whitman entirely disagrees with Shanks; go with Shanks. 720# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 721Rule Belize 1912 only - Apr 1 0:00 0 S 722Rule Belize 1918 1942 - Oct Sun>=2 0:00 0:30 HD 723Rule Belize 1919 1943 - Feb Sun>=9 0:00 0 S 724Rule Belize 1973 only - Dec 5 0:00 1:00 D 725Rule Belize 1974 only - Feb 9 0:00 0 S 726Rule Belize 1982 only - Dec 18 0:00 1:00 D 727Rule Belize 1983 only - Feb 12 0:00 0 S 728# Zone NAME GMTOFF RULES FORMAT [UNTIL] 729Zone America/Belize -5:52:48 - LMT 1912 Apr 730 -6:00 Belize C%sT 731
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732# ZONE-DESCR America Belize Belize All points 733 |
734# Bermuda 735# Zone NAME GMTOFF RULES FORMAT [UNTIL] 736Zone Atlantic/Bermuda -4:19:04 - LMT 1930 Jan 1 2:00 # Hamilton 737 -4:00 - AST 1974 Apr 28 2:00 738 -4:00 Bahamas A%sT 739
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740# ZONE-DESCR Atlantic Bermuda Bermuda All points 741 |
742# Cayman Is 743# Zone NAME GMTOFF RULES FORMAT [UNTIL] 744Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown 745 -5:07 - KMT 1912 Feb # Kingston Mean Time 746 -5:00 - EST 747
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748# ZONE-DESCR America Cayman Cayman_Islands All points 749 |
750# Clipperton 751# no information 752 753# Costa Rica 754# Shanks gives some very odd dates for 1991, and stops there. 755# For now, we won't guess further. 756# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 757Rule CR 1921 only - Jan 15 0:00 0 S 758Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D 759Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S 760Rule CR 1991 only - Jan 19 0:00 1:00 D 761Rule CR 1991 only - Jul 1 0:00 0 S 762# There are too many San Joses elsewhere, so we'll use `Costa Rica'. 763# Zone NAME GMTOFF RULES FORMAT [UNTIL] 764Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose 765 -5:36 - SJMT 1921 Jan 15 # San Jose Mean Time 766 -6:00 CR C%sT
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767# ZONE-DESCR America Costa_Rica Costa_Rica All points 768 |
769# Coco 770# no information; probably like America/Costa_Rica 771 772# Cuba 773 774# From Bob Devine (January 28, 1988): 775# . . .DST is from 2nd Sunday in May to 2nd Sunday in October since 1981. 776# Change at midnight. In 1979 & 1980, started at 3rd Sunday in March 777# (I think). 778 779# From U. S. Naval Observatory (January 19, 1989): 780# CUBA 5 H BEHIND UTC 781# CUBA 4 H BEHIND UTC MAR 20 - OCT 8 782 783# From Shanks (1991): 784# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 785Rule Cuba 1925 only - Jul 19 12:00 0 S 786Rule Cuba 1928 only - Jun 10 0:00 1:00 D 787Rule Cuba 1928 only - Oct 10 0:00 0 S 788Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D 789Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S 790Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D 791Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S 792Rule Cuba 1965 only - Jun 1 0:00 1:00 D 793Rule Cuba 1965 only - Sep 30 0:00 0 S 794Rule Cuba 1966 only - May 29 0:00 1:00 D 795Rule Cuba 1966 only - Oct 2 0:00 0 S 796Rule Cuba 1967 only - Apr 8 0:00 1:00 D 797Rule Cuba 1967 1968 - Sep Sun>=8 0:00 0 S 798Rule Cuba 1968 only - Apr 14 0:00 1:00 D 799Rule Cuba 1969 1977 - Apr lastSun 0:00 1:00 D 800Rule Cuba 1969 1971 - Oct lastSun 0:00 0 S 801Rule Cuba 1972 1974 - Oct 8 0:00 0 S 802Rule Cuba 1975 1977 - Oct lastSun 0:00 0 S 803Rule Cuba 1978 only - May 7 0:00 1:00 D 804Rule Cuba 1978 1980 - Oct Sun>=8 0:00 0 S 805Rule Cuba 1979 1980 - Mar Sun>=15 0:00 1:00 D 806Rule Cuba 1981 1985 - May Sun>=5 0:00 1:00 D 807Rule Cuba 1981 max - Oct Sun>=8 0:00 0 S 808Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D 809Rule Cuba 1990 only - Apr 1 0:00 1:00 D 810Rule Cuba 1991 max - Mar Sun>=14 0:00 1:00 D 811 812# Zone NAME GMTOFF RULES FORMAT [UNTIL] 813Zone America/Havana -5:29:28 - LMT 1890 814 -5:30 - HMT 1925 Jul 19 12:00 # Havana MT 815 -5:00 Cuba C%sT 816
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817# ZONE-DESCR America Havana Cuba All points 818 |
819# Dominica 820# Zone NAME GMTOFF RULES FORMAT [UNTIL] 821Zone America/Dominica -4:05:36 - LMT 1911 Jul 1 0:01 # Roseau 822 -4:00 - AST 823
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824# ZONE-DESCR America Dominica Dominica All points 825 |
826# Dominican Republic 827# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 828Rule DR 1933 only - Apr 1 12:00 0 S 829Rule DR 1966 only - Oct 30 0:00 1:00 D 830Rule DR 1967 only - Feb 28 0:00 0 S 831Rule DR 1969 1973 - Oct lastSun 0:00 0:30 HD 832Rule DR 1970 only - Feb 21 0:00 0 S 833Rule DR 1971 only - Jan 20 0:00 0 S 834Rule DR 1972 1974 - Jan 21 0:00 0 S 835# Zone NAME GMTOFF RULES FORMAT [UNTIL] 836Zone America/Santo_Domingo -4:39:36 - LMT 1890 837 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT 838 -5:00 DR E%sT 1974 Oct 27 839 -4:00 - AST 840
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841# ZONE-DESCR America Santo_Domingo Dominican_Republic All points 842 |
843# El Salvador 844# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 845Rule Salv 1921 only - Jan 1 0:00 0 S 846Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D 847Rule Salv 1987 1988 - Sep lastSun 0:00 0 S 848# There are too many San Salvadors elsewhere, so we'll use `El Salvador'. 849# Zone NAME GMTOFF RULES FORMAT [UNTIL] 850Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador 851 -6:00 Salv C%sT 852
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853# ZONE-DESCR America El_Salvador El_Salvador All points 854 |
855# Grenada 856# Zone NAME GMTOFF RULES FORMAT [UNTIL] 857Zone America/Grenada -4:07:00 - LMT 1911 Jul 858 -4:00 - AST 859
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860# ZONE-DESCR America Grenada Grenada All points 861 |
862# Guadeloupe 863# Zone NAME GMTOFF RULES FORMAT [UNTIL] 864Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe a Pitre 865 -4:00 - AST 866
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867# ZONE-DESCR America Guadeloupe Guadeloupe All points 868 |
869# Guatemala 870# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 871Rule Guat 1918 only - Oct 5 0:00 0 S 872Rule Guat 1973 only - Nov 25 0:00 1:00 D 873Rule Guat 1974 only - Feb 24 0:00 0 S 874Rule Guat 1983 only - May 21 0:00 1:00 D 875Rule Guat 1983 only - Sep 22 0:00 0 S 876# Zone NAME GMTOFF RULES FORMAT [UNTIL] 877Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5 878 -6:00 Guat C%sT 879
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880# ZONE-DESCR America Guatemala Guatemala All points 881 |
882# Haiti 883# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 884Rule Haiti 1917 only - Jan 24 12:00 0 S 885Rule Haiti 1983 only - May 8 0:00 1:00 D 886Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D 887Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S 888Rule Haiti 1988 max - Apr Sun>=1 2:00 1:00 D 889Rule Haiti 1988 max - Oct lastSun 2:00 0 S 890# Zone NAME GMTOFF RULES FORMAT [UNTIL] 891Zone America/Port-au-Prince -4:49:20 - LMT 1890 892 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT 893 -5:00 Haiti E%sT 894
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895# ZONE-DESCR America Port-au-Prince Haiti All points 896 |
897# Honduras 898# Shanks says 1921 Jan 1; go with Whitman's more precise Apr 1. 899# Zone NAME GMTOFF RULES FORMAT [UNTIL] 900Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr 901 -6:00 Salv C%sT 902
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903# ZONE-DESCR America Tegucigalpa Honduras All points 904 |
905# Jamaica 906 907# From Bob Devine (January 28, 1988): 908# Follows US rules. 909 910# From U. S. Naval Observatory (January 19, 1989): 911# JAMAICA 5 H BEHIND UTC 912 913# From Shanks (1991): 914# Zone NAME GMTOFF RULES FORMAT [UNTIL] 915Zone America/Jamaica -5:07:12 - LMT 1890 # Kingston 916 -5:07 - KMT 1912 Feb # Kingston Mean Time 917 -5:00 - EST 1974 Jan 6 2:00 918 -5:00 US E%sT 919
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920# ZONE-DESCR America Jamaica Jamaica All points 921 |
922# Martinique 923# Zone NAME GMTOFF RULES FORMAT [UNTIL] 924Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France 925 -4:04 - FFMT 1911 May # Fort-de-France MT 926 -4:00 - AST 1980 Apr 6 927 -4:00 1:00 ADT 1980 Sep 28 928 -4:00 - AST 929
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930# ZONE-DESCR America Martinique Martinique All points 931 |
932# Montserrat 933# Zone NAME GMTOFF RULES FORMAT [UNTIL] 934Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Plymouth 935 -4:00 - AST 936
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937# ZONE-DESCR America Montserrat Montserrat All points 938 |
939# Nicaragua 940# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 941Rule Nic 1975 only - Feb 16 0:00 0 S 942Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D 943Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S 944# Zone NAME GMTOFF RULES FORMAT [UNTIL] 945Zone America/Managua -5:45:08 - LMT 1890 946 -5:45 - MMT 1934 Jun 23 # Managua Mean Time 947 -6:00 - CST 1973 May 948 -5:00 - EST 1975 Feb 16 949 -6:00 Nic C%sT 950
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951# ZONE-DESCR America Managua Nicaragua All points 952 |
953# Panama 954# Zone NAME GMTOFF RULES FORMAT [UNTIL] 955Zone America/Panama -5:18:08 - LMT 1890 956 -5:20 - PMT 1908 Apr 22 # Panama Mean Time 957 -5:00 - EST 958
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959# ZONE-DESCR America Panama Panama All points 960 |
961# Puerto Rico 962# There are too many San Juans elsewhere, so we'll use `Puerto_Rico'. 963# Zone NAME GMTOFF RULES FORMAT [UNTIL] 964Zone America/Puerto_Rico -4:24:28 - LMT 1899 Mar 28 12:00 # San Juan 965 -4:00 - AST 1942 May 3 966 -4:00 1:00 ADT 1945 Sep 30 2:00 967 -4:00 - AST 968
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969# ZONE-DESCR America Puerto_Rico United_States Puerto Rico 970 |
971# St Kitts-Nevis 972# Zone NAME GMTOFF RULES FORMAT [UNTIL] 973Zone America/St_Kitts -4:10:52 - LMT 1912 Mar 2 # Basseterre 974 -4:00 - AST 975
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976# ZONE-DESCR America St_Kitts St_Kitts_and_Nevis All points 977 |
978# St Lucia 979# Zone NAME GMTOFF RULES FORMAT [UNTIL] 980Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries 981 -4:04 - CMT 1912 # Castries Mean Time 982 -4:00 - AST 983
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984# ZONE-DESCR America St_Lucia St_Lucia All points 985 |
986# St Pierre and Miquelon 987# There are too many St Pierres elsewhere, so we'll use `Miquelon'. 988# Zone NAME GMTOFF RULES FORMAT [UNTIL] 989Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre 990 -4:00 - AST 1980 May 991 -3:00 Mont SP%sT 992
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993# ZONE-DESCR America Miquelon France St. Pierre and Miquelon 994 |
995# St Vincent and the Grenadines 996# Zone NAME GMTOFF RULES FORMAT [UNTIL] 997Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown 998 -4:05 - KMT 1912 # Kingstown Mean Time 999 -4:00 - AST 1000
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1001# ZONE-DESCR America St_Vincent St_Vincent All points 1002 |
1003# Turks and Caicos 1004# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1005Zone America/Grand_Turk -4:44:32 - LMT 1890 1006 -5:07 - KMT 1912 Feb # Kingston Mean Time 1007 -5:00 - EST 1979 Apr 29 2:00 1008 -5:00 US E%sT 1009
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1010# ZONE-DESCR America Grand_Turk Turks_and_Caicos All points 1011 |
1012# Virgin Is (British and US) 1013# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1014Zone America/Virgin -4:19:44 - LMT 1911 Jul # Charlotte Amalie 1015 -4:00 - AST
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1016 1017# ZONE-DESCR America Virgin United_States US Virgin Islands 1018# ZONE-DESCR America virgin United_Kingdom British Virgin Islands |
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