1# Links and zones for backward compatibility 2 3# This file is in the public domain, so clarified as of 4# 2009-05-17 by Arthur David Olson. 5 6# This file provides links from old or merged timezone names to current ones. 7# It also provides a few zone entries for old naming conventions. 8# Many names changed in 1993 and in 1995, and many merged names moved here 9# in the period from 2013 through 2022. Several of these names are 10# also present in the file 'backzone', which has data important only 11# for pre-1970 timestamps and so is out of scope for tzdb proper. 12 13# Although this file is optional and tzdb will work if you omit it by 14# building with 'make BACKWARD=', in practice downstream users 15# typically use this file for backward compatibility. 16 17# This file is divided into sections, one for each major reason for a 18# backward compatibility link or zone. Each section of links is 19# sorted by name. 20 21# A "#= TARGET1" comment labels each link inserted only because some 22# .zi parsers (including tzcode through 2022e) mishandle links to links. 23# The comment says what the target would be if these parsers were fixed 24# so that data could contain links to links. For example, the line 25# "Link Australia/Sydney Australia/ACT #= Australia/Canberra" would be 26# "Link Australia/Canberra Australia/ACT" were it not that data lines 27# refrain from linking to links like Australia/Canberra, which means 28# the Australia/ACT line links instead to Australia/Sydney, 29# Australia/Canberra's target. 30 31 32# Pre-1993 naming conventions 33 34# Link TARGET LINK-NAME #= TARGET1 35Link Australia/Sydney Australia/ACT #= Australia/Canberra 36Link Australia/Lord_Howe Australia/LHI 37Link Australia/Sydney Australia/NSW 38Link Australia/Darwin Australia/North 39Link Australia/Brisbane Australia/Queensland 40Link Australia/Adelaide Australia/South 41Link Australia/Hobart Australia/Tasmania 42Link Australia/Melbourne Australia/Victoria 43Link Australia/Perth Australia/West 44Link Australia/Broken_Hill Australia/Yancowinna 45Link America/Rio_Branco Brazil/Acre #= America/Porto_Acre 46Link America/Noronha Brazil/DeNoronha 47Link America/Sao_Paulo Brazil/East 48Link America/Manaus Brazil/West 49Link Europe/Brussels CET 50Link America/Halifax Canada/Atlantic 51Link America/Winnipeg Canada/Central 52# This line is commented out, as the name exceeded the 14-character limit 53# and was an unused misnomer. 54#Link America/Regina Canada/East-Saskatchewan 55Link America/Toronto Canada/Eastern 56Link America/Edmonton Canada/Mountain 57Link America/St_Johns Canada/Newfoundland 58Link America/Vancouver Canada/Pacific 59Link America/Regina Canada/Saskatchewan 60Link America/Whitehorse Canada/Yukon 61Link America/Santiago Chile/Continental 62Link Pacific/Easter Chile/EasterIsland 63Link America/Havana Cuba 64Link Europe/Athens EET 65Link America/Panama EST 66Link Africa/Cairo Egypt 67Link Europe/Dublin Eire 68# Vanguard section, for most .zi parsers. 69#Link GMT Etc/GMT 70#Link GMT Etc/GMT+0 71#Link GMT Etc/GMT-0 72#Link GMT Etc/GMT0 73#Link GMT Etc/Greenwich 74# Rearguard section, for TZUpdater 2.3.2 and earlier. 75Link Etc/GMT Etc/GMT+0 76Link Etc/GMT Etc/GMT-0 77Link Etc/GMT Etc/GMT0 78Link Etc/GMT Etc/Greenwich 79# End of rearguard section. 80Link Etc/UTC Etc/UCT 81Link Etc/UTC Etc/Universal 82Link Etc/UTC Etc/Zulu 83Link Europe/London GB 84Link Europe/London GB-Eire 85# Vanguard section, for most .zi parsers. 86#Link GMT GMT+0 87#Link GMT GMT-0 88#Link GMT GMT0 89#Link GMT Greenwich 90# Rearguard section, for TZUpdater 2.3.2 and earlier. 91Link Etc/GMT GMT+0 92Link Etc/GMT GMT-0 93Link Etc/GMT GMT0 94Link Etc/GMT Greenwich 95# End of rearguard section. 96Link Asia/Hong_Kong Hongkong 97Link Africa/Abidjan Iceland #= Atlantic/Reykjavik 98Link Asia/Tehran Iran 99Link Asia/Jerusalem Israel 100Link America/Jamaica Jamaica 101Link Asia/Tokyo Japan 102Link Pacific/Kwajalein Kwajalein 103Link Africa/Tripoli Libya 104Link Europe/Brussels MET 105Link America/Phoenix MST 106Link America/Tijuana Mexico/BajaNorte 107Link America/Mazatlan Mexico/BajaSur 108Link America/Mexico_City Mexico/General 109Link Pacific/Auckland NZ 110Link Pacific/Chatham NZ-CHAT 111Link America/Denver Navajo #= America/Shiprock 112Link Asia/Shanghai PRC 113Link Europe/Warsaw Poland 114Link Europe/Lisbon Portugal 115Link Asia/Taipei ROC 116Link Asia/Seoul ROK 117Link Asia/Singapore Singapore 118Link Europe/Istanbul Turkey 119Link Etc/UTC UCT 120Link America/Anchorage US/Alaska 121Link America/Adak US/Aleutian 122Link America/Phoenix US/Arizona 123Link America/Chicago US/Central 124Link America/Indiana/Indianapolis US/East-Indiana 125Link America/New_York US/Eastern 126Link Pacific/Honolulu US/Hawaii 127Link America/Indiana/Knox US/Indiana-Starke 128Link America/Detroit US/Michigan 129Link America/Denver US/Mountain 130Link America/Los_Angeles US/Pacific 131Link Pacific/Pago_Pago US/Samoa 132Link Etc/UTC UTC 133Link Etc/UTC Universal 134Link Europe/Moscow W-SU 135Link Etc/UTC Zulu 136 137 138# Two-part names that were renamed mostly to three-part names in 1995 139 140# Link TARGET LINK-NAME #= TARGET1 141Link America/Argentina/Buenos_Aires America/Buenos_Aires 142Link America/Argentina/Catamarca America/Catamarca 143Link America/Argentina/Cordoba America/Cordoba 144Link America/Indiana/Indianapolis America/Indianapolis 145Link America/Argentina/Jujuy America/Jujuy 146Link America/Indiana/Knox America/Knox_IN 147Link America/Kentucky/Louisville America/Louisville 148Link America/Argentina/Mendoza America/Mendoza 149Link America/Puerto_Rico America/Virgin #= America/St_Thomas 150Link Pacific/Pago_Pago Pacific/Samoa 151 152 153# Pre-2013 practice, which typically had a Zone per zone.tab line 154 155# Link TARGET LINK-NAME 156Link Africa/Abidjan Africa/Accra 157Link Africa/Nairobi Africa/Addis_Ababa 158Link Africa/Nairobi Africa/Asmara 159Link Africa/Abidjan Africa/Bamako 160Link Africa/Lagos Africa/Bangui 161Link Africa/Abidjan Africa/Banjul 162Link Africa/Maputo Africa/Blantyre 163Link Africa/Lagos Africa/Brazzaville 164Link Africa/Maputo Africa/Bujumbura 165Link Africa/Abidjan Africa/Conakry 166Link Africa/Abidjan Africa/Dakar 167Link Africa/Nairobi Africa/Dar_es_Salaam 168Link Africa/Nairobi Africa/Djibouti 169Link Africa/Lagos Africa/Douala 170Link Africa/Abidjan Africa/Freetown 171Link Africa/Maputo Africa/Gaborone 172Link Africa/Maputo Africa/Harare 173Link Africa/Nairobi Africa/Kampala 174Link Africa/Maputo Africa/Kigali 175Link Africa/Lagos Africa/Kinshasa 176Link Africa/Lagos Africa/Libreville 177Link Africa/Abidjan Africa/Lome 178Link Africa/Lagos Africa/Luanda 179Link Africa/Maputo Africa/Lubumbashi 180Link Africa/Maputo Africa/Lusaka 181Link Africa/Lagos Africa/Malabo 182Link Africa/Johannesburg Africa/Maseru 183Link Africa/Johannesburg Africa/Mbabane 184Link Africa/Nairobi Africa/Mogadishu 185Link Africa/Lagos Africa/Niamey 186Link Africa/Abidjan Africa/Nouakchott 187Link Africa/Abidjan Africa/Ouagadougou 188Link Africa/Lagos Africa/Porto-Novo 189Link America/Puerto_Rico America/Anguilla 190Link America/Puerto_Rico America/Antigua 191Link America/Puerto_Rico America/Aruba 192Link America/Panama America/Atikokan 193Link America/Puerto_Rico America/Blanc-Sablon 194Link America/Panama America/Cayman 195Link America/Phoenix America/Creston 196Link America/Puerto_Rico America/Curacao 197Link America/Puerto_Rico America/Dominica 198Link America/Puerto_Rico America/Grenada 199Link America/Puerto_Rico America/Guadeloupe 200Link America/Puerto_Rico America/Kralendijk 201Link America/Puerto_Rico America/Lower_Princes 202Link America/Puerto_Rico America/Marigot 203Link America/Puerto_Rico America/Montserrat 204Link America/Toronto America/Nassau 205Link America/Puerto_Rico America/Port_of_Spain 206Link America/Puerto_Rico America/St_Barthelemy 207Link America/Puerto_Rico America/St_Kitts 208Link America/Puerto_Rico America/St_Lucia 209Link America/Puerto_Rico America/St_Thomas 210Link America/Puerto_Rico America/St_Vincent 211Link America/Puerto_Rico America/Tortola 212Link Pacific/Port_Moresby Antarctica/DumontDUrville 213Link Pacific/Auckland Antarctica/McMurdo 214Link Asia/Riyadh Antarctica/Syowa 215Link Europe/Berlin Arctic/Longyearbyen 216Link Asia/Riyadh Asia/Aden 217Link Asia/Qatar Asia/Bahrain 218Link Asia/Kuching Asia/Brunei 219Link Asia/Singapore Asia/Kuala_Lumpur 220Link Asia/Riyadh Asia/Kuwait 221Link Asia/Dubai Asia/Muscat 222Link Asia/Bangkok Asia/Phnom_Penh 223Link Asia/Bangkok Asia/Vientiane 224Link Africa/Abidjan Atlantic/Reykjavik 225Link Africa/Abidjan Atlantic/St_Helena 226Link Europe/Brussels Europe/Amsterdam 227Link Europe/Prague Europe/Bratislava 228Link Europe/Zurich Europe/Busingen 229Link Europe/Berlin Europe/Copenhagen 230Link Europe/London Europe/Guernsey 231Link Europe/London Europe/Isle_of_Man 232Link Europe/London Europe/Jersey 233Link Europe/Belgrade Europe/Ljubljana 234Link Europe/Brussels Europe/Luxembourg 235Link Europe/Helsinki Europe/Mariehamn 236Link Europe/Paris Europe/Monaco 237Link Europe/Berlin Europe/Oslo 238Link Europe/Belgrade Europe/Podgorica 239Link Europe/Rome Europe/San_Marino 240Link Europe/Belgrade Europe/Sarajevo 241Link Europe/Belgrade Europe/Skopje 242Link Europe/Berlin Europe/Stockholm 243Link Europe/Zurich Europe/Vaduz 244Link Europe/Rome Europe/Vatican 245Link Europe/Belgrade Europe/Zagreb 246Link Africa/Nairobi Indian/Antananarivo 247Link Asia/Bangkok Indian/Christmas 248Link Asia/Yangon Indian/Cocos 249Link Africa/Nairobi Indian/Comoro 250Link Indian/Maldives Indian/Kerguelen 251Link Asia/Dubai Indian/Mahe 252Link Africa/Nairobi Indian/Mayotte 253Link Asia/Dubai Indian/Reunion 254Link Pacific/Port_Moresby Pacific/Chuuk 255Link Pacific/Tarawa Pacific/Funafuti 256Link Pacific/Tarawa Pacific/Majuro 257Link Pacific/Pago_Pago Pacific/Midway 258Link Pacific/Guadalcanal Pacific/Pohnpei 259Link Pacific/Guam Pacific/Saipan 260Link Pacific/Tarawa Pacific/Wake 261Link Pacific/Tarawa Pacific/Wallis 262 263 264# Non-zone.tab locations with timestamps since 1970 that duplicate 265# those of an existing location 266 267# Link TARGET LINK-NAME 268Link Africa/Abidjan Africa/Timbuktu 269Link America/Argentina/Catamarca America/Argentina/ComodRivadavia 270Link America/Adak America/Atka 271Link America/Panama America/Coral_Harbour 272Link America/Tijuana America/Ensenada 273Link America/Indiana/Indianapolis America/Fort_Wayne 274Link America/Toronto America/Montreal 275Link America/Toronto America/Nipigon 276Link America/Iqaluit America/Pangnirtung 277Link America/Rio_Branco America/Porto_Acre 278Link America/Winnipeg America/Rainy_River 279Link America/Argentina/Cordoba America/Rosario 280Link America/Tijuana America/Santa_Isabel 281Link America/Denver America/Shiprock 282Link America/Toronto America/Thunder_Bay 283Link America/Edmonton America/Yellowknife 284Link Pacific/Auckland Antarctica/South_Pole 285Link Asia/Ulaanbaatar Asia/Choibalsan 286Link Asia/Shanghai Asia/Chongqing 287Link Asia/Shanghai Asia/Harbin 288Link Asia/Urumqi Asia/Kashgar 289Link Asia/Jerusalem Asia/Tel_Aviv 290Link Europe/Berlin Atlantic/Jan_Mayen 291Link Australia/Sydney Australia/Canberra 292Link Australia/Hobart Australia/Currie 293Link Europe/London Europe/Belfast 294Link Europe/Chisinau Europe/Tiraspol 295Link Europe/Kyiv Europe/Uzhgorod 296Link Europe/Kyiv Europe/Zaporozhye 297Link Pacific/Kanton Pacific/Enderbury 298Link Pacific/Honolulu Pacific/Johnston 299Link Pacific/Port_Moresby Pacific/Yap 300Link Europe/Lisbon WET 301 302 303# Alternate names for the same location 304 305# Link TARGET LINK-NAME #= TARGET1 306Link Africa/Nairobi Africa/Asmera #= Africa/Asmara 307Link America/Nuuk America/Godthab 308Link Asia/Ashgabat Asia/Ashkhabad 309Link Asia/Kolkata Asia/Calcutta 310Link Asia/Shanghai Asia/Chungking #= Asia/Chongqing 311Link Asia/Dhaka Asia/Dacca 312# Istanbul is in both continents. 313Link Europe/Istanbul Asia/Istanbul 314Link Asia/Kathmandu Asia/Katmandu 315Link Asia/Macau Asia/Macao 316Link Asia/Yangon Asia/Rangoon 317Link Asia/Ho_Chi_Minh Asia/Saigon 318Link Asia/Thimphu Asia/Thimbu 319Link Asia/Makassar Asia/Ujung_Pandang 320Link Asia/Ulaanbaatar Asia/Ulan_Bator 321Link Atlantic/Faroe Atlantic/Faeroe 322Link Europe/Kyiv Europe/Kiev 323# Classically, Cyprus is in Asia; e.g. see Herodotus, Histories, I.72. 324# However, for various reasons many users expect to find it under Europe. 325Link Asia/Nicosia Europe/Nicosia 326Link Pacific/Honolulu HST 327Link Pacific/Guadalcanal Pacific/Ponape #= Pacific/Pohnpei 328Link Pacific/Port_Moresby Pacific/Truk #= Pacific/Chuuk 329 330 331# The backward-compatibility zones PST8PDT, MST7MDT, CST6CDT, and EST5EDT 332 333# Near-copy of US rules in the northamerica file, 334# so that this file can be compiled separately. 335# To conform to POSIX, this copy uses D instead of W for War and P for Peace. 336# Rule NAME FROM TO - IN ON AT SAVE LETTER/S 337Rule USback 1918 1919 - Mar lastSun 2:00 1:00 D 338Rule USback 1918 1919 - Oct lastSun 2:00 0 S 339Rule USback 1942 only - Feb 9 2:00 1:00 D # War 340Rule USback 1945 only - Aug 14 23:00u 1:00 D # Peace 341Rule USback 1945 only - Sep 30 2:00 0 S 342Rule USback 1967 2006 - Oct lastSun 2:00 0 S 343Rule USback 1967 1973 - Apr lastSun 2:00 1:00 D 344Rule USback 1974 only - Jan 6 2:00 1:00 D 345Rule USback 1975 only - Feb lastSun 2:00 1:00 D 346Rule USback 1976 1986 - Apr lastSun 2:00 1:00 D 347Rule USback 1987 2006 - Apr Sun>=1 2:00 1:00 D 348Rule USback 2007 max - Mar Sun>=8 2:00 1:00 D 349Rule USback 2007 max - Nov Sun>=1 2:00 0 S 350 351# From Arthur David Olson (2005-12-19): 352# We generate the files specified below to guard against old files with 353# obsolete information being left in the time zone binary directory. 354# We limit the list to names that have appeared in previous versions of 355# this time zone package. 356# We do these as separate Zones rather than as Links to avoid problems if 357# a particular place changes whether it observes DST. 358# 359# From Paul Eggert (2026-07-24): 360# These zones are for backward compatibility with Unix System V (1983). 361# They are ahistorical, in that they pretend standard time extends 362# backward indefinitely into the past. 363# They use USback (not US) rules so that they conform to POSIX instead 364# of using abbreviations like EWT for Eastern War Time during World War II. 365# The zones are here, not in the northamerica file, to lessen 366# confusion downstream by making it clear that the zones are present 367# only for backward compatibility. 368# New software should use settings like TZ='America/New_York' instead 369# of these backwards-compatibility zones. 370# 371# Zone NAME STDOFF RULES FORMAT [UNTIL] 372Zone PST8PDT -8:00 USback P%sT 373Zone MST7MDT -7:00 USback M%sT 374Zone CST6CDT -6:00 USback C%sT 375Zone EST5EDT -5:00 USback E%sT 376