projects / apple / system_cmds.git / blame
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| 1815bff5 A |
1 | # $OpenBSD: southamerica,v 1.4 1997/01/14 04:36:57 millert Exp $ |
| 2 | # @(#)southamerica 7.16 | |
| 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> (1996-11-22): | |
| 9 | # A good source for time zone historical data outside the U.S. is | |
| 10 | # Thomas G. Shanks, The International Atlas (3rd edition), | |
| 11 | # San Diego: ACS Publications, Inc. (1991). | |
| 12 | # | |
| 13 | # Gwillim Law <LAW@encmail.encompass.com> writes that a good source | |
| 14 | # for recent time zone data is the International Air Transport | |
| 15 | # Association's Standard Schedules Information Manual (IATA SSIM), | |
| 16 | # published semiannually. Law sent in several helpful summaries | |
| 17 | # of the IATA's data after 1990. | |
| 18 | # | |
| 19 | # Except where otherwise noted, Shanks is the source for entries through 1990, | |
| 20 | # and IATA SSIM is the source for entries after 1990. | |
| 21 | # | |
| 22 | # The following abbreviations are used in this file. | |
| 23 | # Corrections are welcome! | |
| 24 | # std dst | |
| 25 | # LMT Local Mean Time | |
| 26 | # -2:00 FST FDT Fernando de Noronha | |
| 27 | # -3:00 EST EDT Eastern Brazil | |
| 28 | # -4:00 WST WDT Western Brazil | |
| 29 | # -4:00 AST ADT Atlantic | |
| 30 | # -5:00 AST ADT Acre | |
| 31 | # | |
| 32 | # See the `africa' file for time zone naming and abbreviation conventions. | |
| 33 | # Earlier editions of these tables used the North American style (e.g. ARST and | |
| 34 | # ARDT for Argentine Standard and Daylight Time), but the following quote | |
| 35 | # suggests that it's better to use European style (e.g. ART and ARST). | |
| 36 | # I suggest the use of _Summer time_ instead of the more cumbersome | |
| 37 | # _daylight-saving time_. _Summer time_ seems to be in general use | |
| 38 | # in Europe and South America. | |
| 39 | # -- E O Cutler, _New York Times_ (1937-02-14), quoted in | |
| 40 | # H L Mencken, _The American Language: Supplement I_ (1960), p 466 | |
| 41 | ||
| 42 | ||
| 43 | # From Guy Harris: | |
| 44 | # From Official Airline Guide - Worldwide Edition (1987). Countries not | |
| 45 | # listed here do not observe DST, according to the OAG. Time zone names | |
| 46 | # are pure inventions, and none are supplied for countries not observing | |
| 47 | # DST; updates from natives would be appreciated. The times that DST | |
| 48 | # starts and ends are based on the assumption that they switch a 2AM just | |
| 49 | # as everybody else does. | |
| 50 | ||
| 51 | ############################################################################### | |
| 52 | ||
| 53 | ############################################################################### | |
| 54 | ||
| 55 | # Argentina | |
| 56 | ||
| 57 | # From Bob Devine (1988-01-28): | |
| 58 | # Argentina: first Sunday in October to first Sunday in April since 1976. | |
| 59 | # Double Summer time from 1969 to 1974. Switches at midnight. | |
| 60 | ||
| 61 | # From U. S. Naval Observatory (1988-01-199): | |
| 62 | # ARGENTINA 3 H BEHIND UTC | |
| 63 | ||
| 64 | # From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26): | |
| 65 | # I am sending modifications to the Argentine time zone table... | |
| 66 | # AR was chosen because they are the ISO letters that represent Argentina. | |
| 67 | ||
| 68 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 69 | Rule Arg 1930 only - Dec 1 0:00 1:00 S | |
| 70 | Rule Arg 1931 only - Apr 1 0:00 0 - | |
| 71 | Rule Arg 1931 only - Oct 15 0:00 1:00 S | |
| 72 | Rule Arg 1932 1940 - Mar 1 0:00 0 - | |
| 73 | Rule Arg 1932 1939 - Nov 1 0:00 1:00 S | |
| 74 | Rule Arg 1940 only - Jul 1 0:00 1:00 S | |
| 75 | Rule Arg 1941 only - Jun 15 0:00 0 - | |
| 76 | Rule Arg 1941 only - Oct 15 0:00 1:00 S | |
| 77 | Rule Arg 1943 only - Aug 1 0:00 0 - | |
| 78 | Rule Arg 1943 only - Oct 15 0:00 1:00 S | |
| 79 | Rule Arg 1946 only - Mar 1 0:00 0 - | |
| 80 | Rule Arg 1946 only - Oct 1 0:00 1:00 S | |
| 81 | Rule Arg 1963 only - Oct 1 0:00 0 - | |
| 82 | Rule Arg 1963 only - Dec 15 0:00 1:00 S | |
| 83 | Rule Arg 1964 1966 - Mar 1 0:00 0 - | |
| 84 | Rule Arg 1964 1966 - Oct 15 0:00 1:00 S | |
| 85 | Rule Arg 1967 only - Apr 1 0:00 0 - | |
| 86 | Rule Arg 1967 1968 - Oct Sun<=7 0:00 1:00 S | |
| 87 | Rule Arg 1968 1969 - Apr Sun<=7 0:00 0 - | |
| 88 | Rule Arg 1974 only - Jan 23 0:00 1:00 S | |
| 89 | Rule Arg 1974 only - May 1 0:00 0 - | |
| 90 | Rule Arg 1974 1976 - Oct Sun<=7 0:00 1:00 S | |
| 91 | Rule Arg 1975 1977 - Apr Sun<=7 0:00 0 - | |
| 92 | Rule Arg 1985 only - Nov 2 0:00 1:00 S | |
| 93 | Rule Arg 1986 only - Mar 14 0:00 0 - | |
| 94 | Rule Arg 1986 1987 - Oct 25 0:00 1:00 S | |
| 95 | Rule Arg 1987 only - Feb 13 0:00 0 - | |
| 96 | Rule Arg 1988 only - Feb 7 0:00 0 - | |
| 97 | Rule Arg 1988 only - Dec 1 0:00 1:00 S | |
| 98 | # | |
| 99 | # From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26): | |
| 100 | # These corrections were contributed by InterSoft Argentina S.A., | |
| 101 | # obtaining the data from the: | |
| 102 | # Talleres de Hidrografia Naval Argentina | |
| 103 | # (Argentine Naval Hydrography Institute) | |
| 104 | # | |
| 105 | # Shanks gives 1989 Mar 16 and stops after 1990 Mar 4; go with Otero. | |
| 106 | Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - | |
| 107 | Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S | |
| 108 | # | |
| 109 | # From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26): | |
| 110 | # From this moment on, the law that mandated the daylight saving | |
| 111 | # time corrections was derogated and no more modifications | |
| 112 | # to the time zones (for daylight saving) are now made. | |
| 113 | # | |
| 114 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 115 | # | |
| 116 | # Buenos Aires (BA), Distrito Federal (DF), Santa Cruz (SC), | |
| 117 | # Tierra del Fuego (TF) & Antartida e Islas | |
| 118 | Zone America/Buenos_Aires -3:53:48 - LMT 1894 Nov | |
| 119 | -4:16:44 - CMT 1920 May # Cordoba Mean Time | |
| 120 | -4:00 - ART 1930 Dec | |
| 121 | -4:00 Arg AR%sT 1969 Oct 5 | |
| 122 | -3:00 Arg AR%sT | |
| 123 | # | |
| 124 | # Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC), | |
| 125 | # Formosa (FM), La Pampa (LP), Chubut (CH) | |
| 126 | Zone America/Rosario -4:02:40 - LMT 1894 Nov | |
| 127 | -4:16:44 - CMT 1920 May | |
| 128 | -4:00 - ART 1930 Dec | |
| 129 | -4:00 Arg AR%sT 1969 Oct 5 | |
| 130 | -3:00 Arg AR%sT 1991 Jul | |
| 131 | -3:00 - ART | |
| 132 | # | |
| 133 | # Cordoba (CB), Santiago del Estero (SE), Salta (SA), Tucuman (TM), La Rioja (LR), San Juan (SJ), San Luis (SL), | |
| 134 | # Neuquen (NQ), Rio Negro (RN) | |
| 135 | Zone America/Cordoba -4:16:44 - LMT 1894 Nov | |
| 136 | -4:16:44 - CMT 1920 May | |
| 137 | -4:00 - ART 1930 Dec | |
| 138 | -4:00 Arg AR%sT 1969 Oct 5 | |
| 139 | -3:00 Arg AR%sT 1990 Jul | |
| 140 | -3:00 - ART | |
| 141 | # | |
| 142 | # Jujuy (JY) | |
| 143 | Zone America/Jujuy -4:21:12 - LMT 1894 Nov | |
| 144 | -4:16:44 - CMT 1920 May | |
| 145 | -4:00 - ART 1930 Dec | |
| 146 | -4:00 Arg AR%sT 1969 Oct 5 | |
| 147 | -3:00 Arg AR%sT 1991 Mar 3 | |
| 148 | -4:00 - WART 1991 Oct 6 | |
| 149 | -4:00 1:00 WARST 1992 Mar 15 | |
| 150 | -4:00 - WART 1992 Oct 18 | |
| 151 | -3:00 - ART | |
| 152 | # | |
| 153 | # Catamarca (CT) | |
| 154 | Zone America/Catamarca -4:23:08 - LMT 1894 Nov | |
| 155 | -4:16:44 - CMT 1920 May | |
| 156 | -4:00 - ART 1930 Dec | |
| 157 | -4:00 Arg AR%sT 1969 Oct 5 | |
| 158 | -3:00 Arg AR%sT 1990 Jul | |
| 159 | -3:00 - ART 1991 Jul | |
| 160 | -3:00 Arg AR%sT 1992 Jul | |
| 161 | -3:00 - ART | |
| 162 | # | |
| 163 | # Mendoza (MZ) | |
| 164 | Zone America/Mendoza -4:35:16 - LMT 1894 Nov | |
| 165 | -4:16:44 - CMT 1920 May | |
| 166 | -4:00 - ART 1930 Dec | |
| 167 | -4:00 Arg AR%sT 1969 Oct 5 | |
| 168 | -3:00 Arg AR%sT 1991 Mar 3 | |
| 169 | -4:00 - WART 1991 Oct 15 | |
| 170 | -4:00 1:00 WARST 1992 Mar 1 | |
| 171 | -4:00 - WART 1992 Oct 18 | |
| 172 | -3:00 - ART | |
| 173 | ||
| 174 | # Aruba | |
| 175 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 176 | Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad | |
| 177 | -4:30 - ANT 1965 # Netherlands Antilles Time | |
| 178 | -4:00 - AST | |
| 179 | ||
| 180 | # Bolivia | |
| 181 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 182 | Zone America/La_Paz -4:32:36 - LMT 1890 | |
| 183 | -4:32:36 - LPMT 1931 Oct 15 # La Paz Mean Time | |
| 184 | -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST | |
| 185 | -4:00 - BOT # Bolivia Time | |
| 186 | ||
| 187 | # Brazil | |
| 188 | ||
| 189 | # From Guy Harris: | |
| 190 | # The OAG lists 1987-10-25 and 1988-02-12 as the starting and | |
| 191 | # ending dates, giving them as "estimated date(s) based on previous year". We | |
| 192 | # infer a rule here from one example, always a dangerous practice.... Yes, | |
| 193 | # they really do switch on Saturday, according to the OAG. | |
| 194 | # "[America/Porto_Acre]" is for the Territory of Acre; | |
| 195 | # "[America/Noronha]" is for Fernando De Noronha. | |
| 196 | ||
| 197 | # From Paul Eggert <eggert@twinsun.com> (1993-11-18): | |
| 198 | # The mayor of Rio recently attempted to change the time zone rules | |
| 199 | # just in his city, in order to leave more summer time for the tourist trade. | |
| 200 | # The rule change lasted only part of the day; | |
| 201 | # the federal government refused to follow the city's rules, and business | |
| 202 | # was in a chaos, so the mayor backed down that afternoon. | |
| 203 | ||
| 204 | # From IATA SSIM (1996-02): | |
| 205 | # _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), | |
| 206 | # Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ), | |
| 207 | # Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO), | |
| 208 | # Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. | |
| 209 | # [The last three states are new to this issue of the IATA SSIM.] | |
| 210 | ||
| 211 | # From Gwillim Law (1996-10-07): | |
| 212 | # Geography, history (Tocantins was part of Goias until 1989), and other | |
| 213 | # sources of time zone information lead me to believe that AL, SE, and TO were | |
| 214 | # always in BR1, and so the only change was whether or not they observed DST.... | |
| 215 | # The earliest issue of the SSIM I have is 2/91. Each issue from then until | |
| 216 | # 9/95 says that DST is observed only in the ten states I quoted from 9/95, | |
| 217 | # along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 | |
| 218 | # (UTC-4).... The other two time zones given for Brazil are BR3, which is | |
| 219 | # UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is | |
| 220 | # UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's | |
| 221 | # become part of the state of Pernambuco). The boundary between BR1 and BR2 | |
| 222 | # has never been clearly stated. They've simply been called East and West. | |
| 223 | # However, some conclusions can be drawn from another IATA manual: the Airline | |
| 224 | # Coding Directory, which lists close to 400 airports in Brazil. For each | |
| 225 | # airport it gives a time zone which is coded to the SSIM. From that | |
| 226 | # information, I'm led to conclude that the states of Amapa (AP), Ceara (CE), | |
| 227 | # Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do | |
| 228 | # Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST. | |
| 229 | ||
| 230 | # From Paul Eggert (1996-11-22): | |
| 231 | # Let's make the following assumptions: | |
| 232 | # | |
| 233 | # * All data in Shanks are correct through 1990. In particular, | |
| 234 | # Shanks was right when he said Acre stopped observing DST in mid-1988. | |
| 235 | # * Areas where Shanks reports DST up to 1990, but the IATA reports no DST | |
| 236 | # in 1995, stopped observing DST in mid-1990. | |
| 237 | # | |
| 238 | # Under these assumptions Brazil needs 7 entries to cover all the distinct | |
| 239 | # time zone histories since 1970: | |
| 240 | # | |
| 241 | # Noronha (UTC-2), Fortaleza (UTC-3), and Manaus (UTC-4) stopped observing DST | |
| 242 | # in mid-1990. | |
| 243 | # Maceio (UTC-3) stopped observing DST in mid-1990, but started again mid-1995. | |
| 244 | # Sao Paulo (UTC-3) and Cuiaba (UTC-4) always observed DST. | |
| 245 | # Porto Acre (UTC-5) stopped observing DST in mid-1988. | |
| 246 | ||
| 247 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 248 | Rule Brazil 1931 only - Oct 3 11:00 1:00 D | |
| 249 | Rule Brazil 1932 1933 - Apr 1 0:00 0 S | |
| 250 | Rule Brazil 1932 only - Oct 3 0:00 1:00 D | |
| 251 | Rule Brazil 1949 1952 - Dec 1 0:00 1:00 D | |
| 252 | Rule Brazil 1950 only - Apr 16 0:00 0 S | |
| 253 | Rule Brazil 1951 1953 - Apr 1 0:00 0 S | |
| 254 | Rule Brazil 1963 only - Dec 9 0:00 1:00 D | |
| 255 | Rule Brazil 1964 only - Mar 1 0:00 0 S | |
| 256 | Rule Brazil 1965 only - Jan 31 0:00 1:00 D | |
| 257 | Rule Brazil 1965 only - Apr 1 0:00 0 S | |
| 258 | Rule Brazil 1965 only - Dec 1 0:00 1:00 D | |
| 259 | Rule Brazil 1966 1968 - Mar 1 0:00 0 S | |
| 260 | Rule Brazil 1966 1967 - Nov 1 0:00 1:00 D | |
| 261 | Rule Brazil 1985 only - Nov 2 0:00 1:00 D | |
| 262 | Rule Brazil 1986 only - Mar 15 0:00 0 S | |
| 263 | Rule Brazil 1986 1987 - Oct Sat<=28 0:00 1:00 D | |
| 264 | Rule Brazil 1987 only - Feb 14 0:00 0 S | |
| 265 | Rule Brazil 1988 only - Feb 7 0:00 0 S | |
| 266 | Rule Brazil 1989 only - Jan 22 0:00 0 S | |
| 267 | Rule Brazil 1988 1989 - Oct Sun>=10 0:00 1:00 D | |
| 268 | Rule Brazil 1990 1991 - Feb Sun>=11 0:00 0 S | |
| 269 | Rule Brazil 1990 1992 - Oct Sun>=20 0:00 1:00 D | |
| 270 | Rule Brazil 1992 only - Feb 9 0:00 0 S | |
| 271 | Rule Brazil 1993 max - Oct Sun>=11 0:00 1:00 D | |
| 272 | Rule Brazil 1993 only - Jan 31 0:00 0 S | |
| 273 | Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 S | |
| 274 | Rule Brazil 1996 max - Feb Sun>=11 0:00 0 S | |
| 275 | ||
| 276 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 277 | # | |
| 278 | # Fernando de Noronha | |
| 279 | Zone America/Noronha -2:09:40 - LMT 1914 | |
| 280 | -2:00 - FST 1963 Dec 9 | |
| 281 | -2:00 Brazil F%sT 1990 Jul | |
| 282 | -2:00 - FST | |
| 283 | # | |
| 284 | # Amapa, east Para, Maranhao, Piaui, Ceara, Rio Grande do Norte, Paraiba, | |
| 285 | # Pernambuco (except Fernando de Noronha) | |
| 286 | Zone America/Fortaleza -2:34:00 - LMT 1914 | |
| 287 | -3:00 - EST 1963 Dec 9 | |
| 288 | -3:00 Brazil E%sT 1990 Jul | |
| 289 | -3:00 - EST | |
| 290 | # | |
| 291 | # Alagoas, Sergipe, Tocantins | |
| 292 | Zone America/Maceio -2:22:52 - LMT 1914 | |
| 293 | -3:00 - EST 1963 Dec 9 | |
| 294 | -3:00 Brazil E%sT 1990 Jul | |
| 295 | -3:00 - EST 1995 Jul | |
| 296 | -3:00 Brazil E%sT | |
| 297 | # | |
| 298 | # Bahia, Goias, Distrito Federal, Minas Gerais, Espirito Santo, Rio de Janeiro, | |
| 299 | # Sao Paulo, Parana, Santa Catarina, Rio Grande do Sul | |
| 300 | Zone America/Sao_Paulo -3:06:28 - LMT 1914 | |
| 301 | -3:00 Brazil E%sT | |
| 302 | # | |
| 303 | # Mato Grosso, Mato Grosso do Sul | |
| 304 | Zone America/Cuiaba -3:44:20 - LMT 1914 | |
| 305 | -4:00 - WST 1963 Dec 9 | |
| 306 | -4:00 Brazil W%sT | |
| 307 | # | |
| 308 | # Roraima, west Para, Amazonas, Rondonia | |
| 309 | Zone America/Manaus -4:00:04 - LMT 1914 | |
| 310 | -4:00 - WST 1963 Dec 9 | |
| 311 | -4:00 Brazil W%sT 1990 Jul | |
| 312 | -4:00 - WST | |
| 313 | # | |
| 314 | # Acre | |
| 315 | # Rio_Branco is too ambiguous, since there's a Rio Branco in Uruguay too. | |
| 316 | Zone America/Porto_Acre -4:31:12 - LMT 1914 | |
| 317 | -5:00 - AST 1963 Dec 9 | |
| 318 | -5:00 Brazil A%sT 1988 Jul | |
| 319 | -5:00 - AST | |
| 320 | # | |
| 321 | # Martin Vaz and Trinidade are like America/Noronha. | |
| 322 | ||
| 323 | ||
| 324 | # Chile | |
| 325 | ||
| 326 | # From Eduardo Krell (1995-10-19): | |
| 327 | # The law says to switch to DST at midnight [24:00] on the second SATURDAY | |
| 328 | # of October.... The law is the same for March and October. | |
| 329 | ||
| 330 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 331 | Rule Chile 1918 only - Sep 1 0:00 1:00 S | |
| 332 | Rule Chile 1919 only - Jul 2 0:00 0 - | |
| 333 | Rule Chile 1927 1931 - Sep 1 0:00 1:00 S | |
| 334 | Rule Chile 1928 1932 - Apr 1 0:00 0 - | |
| 335 | Rule Chile 1969 max - Oct Sun>=9 0:00 1:00 S | |
| 336 | Rule Chile 1970 max - Mar Sun>=9 0:00 0 - | |
| 337 | # IATA SSIM anomalies: (1990-09) says 1990-09-16; (1992-02) says 1992-03-14; | |
| 338 | # (1996-09) says 1998-03-08. Ignore these for now. | |
| 339 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 340 | Zone America/Santiago -4:42:40 - LMT 1890 | |
| 341 | -4:42:40 - SMT 1910 # Santiago Mean Time | |
| 342 | -5:00 Chile CL%sT 1932 Sep # Chile Time | |
| 343 | -4:00 Chile CL%sT | |
| 344 | Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri | |
| 345 | -7:17:28 - MMT 1932 Sep # Mataveri Mean Time | |
| 346 | -7:00 Chile EAS%sT 1982 Mar 14 # Easter I Time | |
| 347 | -6:00 Chile EAS%sT | |
| 348 | # | |
| 349 | # Whitman says Juan Fernandez Is are like America/Santiago. | |
| 350 | # San Ambrosio, San Felix | |
| 351 | # no information; probably like America/Santiago | |
| 352 | ||
| 353 | ||
| 354 | # Colombia | |
| 355 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 356 | Rule CO 1992 only - May 2 0:00 1:00 S | |
| 357 | Rule CO 1992 only - Dec 31 0:00 0 - | |
| 358 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 359 | Zone America/Bogota -4:56:20 - LMT 1884 Mar 13 | |
| 360 | -4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time | |
| 361 | -5:00 CO CO%sT # Colombia Time | |
| 362 | # Malpelo, Providencia, San Andres | |
| 363 | # no information; probably like America/Bogota | |
| 364 | ||
| 365 | # Curacao | |
| 366 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 367 | Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad | |
| 368 | -4:30 - ANT 1965 # Netherlands Antilles Time | |
| 369 | -4:00 - AST | |
| 370 | ||
| 371 | # Ecuador | |
| 372 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 373 | Zone America/Guayaquil -5:19:20 - LMT 1890 | |
| 374 | -5:14:00 - QMT 1931 # Quito Mean Time | |
| 375 | -5:00 - ECT # Ecuador Time | |
| 376 | Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno | |
| 377 | -5:00 - ECT 1986 | |
| 378 | -6:00 - GALT # Galapagos Time | |
| 379 | ||
| 380 | # Falklands | |
| 381 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 382 | Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S | |
| 383 | Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - | |
| 384 | Rule Falk 1939 only - Oct 1 0:00 1:00 S | |
| 385 | Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S | |
| 386 | Rule Falk 1943 only - Jan 1 0:00 0 - | |
| 387 | Rule Falk 1983 only - Sep lastSun 0:00 1:00 S | |
| 388 | Rule Falk 1984 1985 - Apr lastSun 0:00 0 - | |
| 389 | Rule Falk 1984 only - Sep 16 0:00 1:00 S | |
| 390 | Rule Falk 1985 1995 - Sep Sun>=9 0:00 1:00 S | |
| 391 | Rule Falk 1986 max - Apr Sun>=16 0:00 0 - | |
| 392 | Rule Falk 1996 max - Sep Sun>=8 0:00 1:00 S | |
| 393 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 394 | Zone Atlantic/Stanley -3:51:24 - LMT 1890 | |
| 395 | -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time | |
| 396 | -4:00 Falk FK%sT 1983 May # Falkland Is Time | |
| 397 | -3:00 Falk FK%sT 1985 Sep 15 | |
| 398 | -4:00 Falk FK%sT | |
| 399 | ||
| 400 | # French Guiana | |
| 401 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 402 | Zone America/Cayenne -3:29:20 - LMT 1911 Jul | |
| 403 | -4:00 - GFT 1967 Oct # French Guiana Time | |
| 404 | -3:00 - GFT | |
| 405 | ||
| 406 | # Guyana | |
| 407 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 408 | Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown | |
| 409 | -3:45 - GBGT 1966 May 26 # Br Guiana Time | |
| 410 | -3:45 - GYT 1975 Jul 31 # Guyana Time | |
| 411 | -3:00 - GYT 1991 | |
| 412 | # IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. | |
| 413 | -4:00 - GYT | |
| 414 | ||
| 415 | # Paraguay | |
| 416 | ||
| 417 | # From Bob Devine (1988-01-28): | |
| 418 | # Paraguay: First day in October to last in March. Midnight switch?? | |
| 419 | # Since 1980. | |
| 420 | ||
| 421 | # From U. S. Naval Observatory (1989-01-19): | |
| 422 | # PARAGUAY 4 H BEHIND UTC | |
| 423 | # PARAGUAY 3 H BEHIND UTC OCT 1, '88-MAR 31, '89 | |
| 424 | ||
| 425 | # From Shanks (1991): | |
| 426 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 427 | Rule Para 1975 1978 - Oct 1 0:00 1:00 S | |
| 428 | Rule Para 1975 1978 - Mar 1 0:00 0 - | |
| 429 | # Shanks says 1979 was all DST. | |
| 430 | Rule Para 1980 1991 - Apr 1 0:00 0 - | |
| 431 | Rule Para 1980 1988 - Oct 1 0:00 1:00 S | |
| 432 | Rule Para 1989 only - Oct 22 0:00 1:00 S | |
| 433 | Rule Para 1990 only - Oct 1 0:00 1:00 S | |
| 434 | Rule Para 1991 only - Oct 6 0:00 1:00 S | |
| 435 | Rule Para 1992 only - Mar 1 0:00 0 - | |
| 436 | Rule Para 1992 only - Oct 5 0:00 1:00 S | |
| 437 | Rule Para 1993 only - Mar 31 0:00 0 - | |
| 438 | Rule Para 1993 max - Oct 1 0:00 1:00 S | |
| 439 | Rule Para 1994 1995 - Feb lastSun 0:00 0 - | |
| 440 | Rule Para 1996 max - Mar 1 0:00 0 - | |
| 441 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 442 | Zone America/Asuncion -3:50:40 - LMT 1890 | |
| 443 | -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time | |
| 444 | -4:00 - PYT 1972 Oct # Paraguay Time | |
| 445 | -3:00 - PYT 1974 Apr | |
| 446 | -4:00 Para PY%sT | |
| 447 | ||
| 448 | # Peru | |
| 449 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 450 | Rule Peru 1938 only - Jan 1 0:00 1:00 S | |
| 451 | Rule Peru 1938 only - Apr 1 0:00 0 - | |
| 452 | Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S | |
| 453 | Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - | |
| 454 | Rule Peru 1987 only - Jan 1 0:00 1:00 S | |
| 455 | Rule Peru 1987 only - Apr 1 0:00 0 - | |
| 456 | Rule Peru 1990 only - Jan 1 0:00 1:00 S | |
| 457 | Rule Peru 1990 only - Apr 1 0:00 0 - | |
| 458 | Rule Peru 1993 only - Jan 1 0:00 1:00 S | |
| 459 | Rule Peru 1993 only - Apr 1 0:00 0 - | |
| 460 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 461 | Zone America/Lima -5:08:12 - LMT 1890 | |
| 462 | -5:09 - LMT 1908 Jul 28 # Lima Mean Time | |
| 463 | -5:00 Peru PE%sT # Peru Time | |
| 464 | ||
| 465 | # South Georgia | |
| 466 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 467 | Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken | |
| 468 | -2:00 - GST # South Georgia Time | |
| 469 | ||
| 470 | # South Sandwich Is | |
| 471 | # uninhabited | |
| 472 | ||
| 473 | # Suriname | |
| 474 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 475 | Zone America/Paramaribo -3:40:40 - LMT 1911 | |
| 476 | -3:40:52 - PMT 1935 # Paramaribo Mean Time | |
| 477 | -3:40:36 - PMT 1945 Oct # The capital moved? | |
| 478 | -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time | |
| 479 | -3:30 - SRT 1984 Oct # Suriname Time | |
| 480 | -3:00 - SRT | |
| 481 | ||
| 482 | # Trinidad and Tobago | |
| 483 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 484 | Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 | |
| 485 | -4:00 - AST | |
| 486 | ||
| 487 | # Uruguay | |
| 488 | # From Paul Eggert <eggert@twinsun.com> (1993-11-18): | |
| 489 | # Uruguay wins the prize for the strangest peacetime manipulation of the rules. | |
| 490 | # From Shanks (1991): | |
| 491 | # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
| 492 | # Whitman gives 1923 Oct 1; go with Shanks. | |
| 493 | Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS | |
| 494 | Rule Uruguay 1924 1926 - Apr 1 0:00 0 - | |
| 495 | Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS | |
| 496 | Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS | |
| 497 | # Shanks gives 1935 Apr 1 0:00 and 1936 Mar 30 0:00; go with Whitman. | |
| 498 | Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - | |
| 499 | Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS | |
| 500 | Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - | |
| 501 | # Whitman gives 1937 Oct 3; go with Shanks. | |
| 502 | Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS | |
| 503 | # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, | |
| 504 | # and 1943 Apr 13 ``to present time''; go with Shanks. | |
| 505 | Rule Uruguay 1941 only - Aug 1 0:00 0 - | |
| 506 | Rule Uruguay 1942 only - Jan 1 0:00 0:30 HS | |
| 507 | Rule Uruguay 1942 only - Dec 14 0:00 1:00 S | |
| 508 | Rule Uruguay 1943 only - Mar 14 0:00 0 - | |
| 509 | Rule Uruguay 1959 only - May 24 0:00 1:00 S | |
| 510 | Rule Uruguay 1959 only - Nov 15 0:00 0 - | |
| 511 | Rule Uruguay 1960 only - Jan 17 0:00 1:00 S | |
| 512 | Rule Uruguay 1960 only - Mar 6 0:00 0 - | |
| 513 | Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S | |
| 514 | Rule Uruguay 1965 only - Sep 26 0:00 0 - | |
| 515 | Rule Uruguay 1966 1967 - Oct 31 0:00 0 - | |
| 516 | Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS | |
| 517 | Rule Uruguay 1968 1970 - Dec 2 0:00 0 - | |
| 518 | Rule Uruguay 1972 only - Apr 24 0:00 1:00 S | |
| 519 | Rule Uruguay 1972 only - Aug 15 0:00 0 - | |
| 520 | Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS | |
| 521 | Rule Uruguay 1974 only - Dec 22 0:00 1:00 S | |
| 522 | Rule Uruguay 1976 only - Oct 1 0:00 0 - | |
| 523 | Rule Uruguay 1977 only - Dec 4 0:00 1:00 S | |
| 524 | Rule Uruguay 1978 only - Apr 1 0:00 0 - | |
| 525 | Rule Uruguay 1979 only - Oct 1 0:00 1:00 S | |
| 526 | Rule Uruguay 1980 only - May 1 0:00 0 - | |
| 527 | Rule Uruguay 1987 only - Dec 14 0:00 1:00 S | |
| 528 | Rule Uruguay 1988 only - Mar 14 0:00 0 - | |
| 529 | Rule Uruguay 1988 only - Dec 11 0:00 1:00 S | |
| 530 | Rule Uruguay 1989 only - Mar 12 0:00 0 - | |
| 531 | Rule Uruguay 1989 only - Oct 29 0:00 1:00 S | |
| 532 | Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - | |
| 533 | Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S | |
| 534 | Rule Uruguay 1992 1993 - Oct Sun>=15 0:00 1:00 S | |
| 535 | Rule Uruguay 1993 only - Feb 28 0:00 0 - | |
| 536 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 537 | Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 | |
| 538 | -3:44:44 - MMT 1920 May 1 # Montevideo MT | |
| 539 | -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time | |
| 540 | -3:00 Uruguay UY%sT | |
| 541 | ||
| 542 | # Venezuela | |
| 543 | # Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
| 544 | Zone America/Caracas -4:27:44 - LMT 1890 | |
| 545 | -4:27:44 - CMT 1912 Feb 12 # Caracas Mean Time | |
| 546 | -4:30 - VET 1965 # Venezuela Time | |
| 547 | -4:00 - VET |