# $OpenBSD: backward,v 1.46 2024/10/02 17:08:47 millert Exp $
# Links and zones for backward compatibility

# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.

# This file provides links from old or merged timezone names to current ones.
# It also provides a few zone entries for old naming conventions.
# Many names changed in 1993 and in 1995, and many merged names moved here
# in the period from 2013 through 2022.  Several of these names are
# also present in the file 'backzone', which has data important only
# for pre-1970 timestamps and so is out of scope for tzdb proper.

# Although this file is optional and tzdb will work if you omit it by
# building with 'make BACKWARD=', in practice downstream users
# typically use this file for backward compatibility.

# This file is divided into sections, one for each major reason for a
# backward compatibility link.  Each section is sorted by link name.

# A "#= TARGET1" comment labels each link inserted only because some
# .zi parsers (including tzcode through 2022e) mishandle links to links.
# The comment says what the target would be if these parsers were fixed
# so that data could contain links to links.  For example, the line
# "Link Australia/Sydney Australia/ACT #= Australia/Canberra" would be
# "Link Australia/Canberra Australia/ACT" were it not that data lines
# refrain from linking to links like Australia/Canberra, which means
# the Australia/ACT line links instead to Australia/Sydney,
# Australia/Canberra's target.


# Pre-1993 naming conventions

# Link	TARGET			LINK-NAME	#= TARGET1
Link	Australia/Sydney	Australia/ACT	#= Australia/Canberra
Link	Australia/Lord_Howe	Australia/LHI
Link	Australia/Sydney	Australia/NSW
Link	Australia/Darwin	Australia/North
Link	Australia/Brisbane	Australia/Queensland
Link	Australia/Adelaide	Australia/South
Link	Australia/Hobart	Australia/Tasmania
Link	Australia/Melbourne	Australia/Victoria
Link	Australia/Perth		Australia/West
Link	Australia/Broken_Hill	Australia/Yancowinna
Link	America/Rio_Branco	Brazil/Acre	#= America/Porto_Acre
Link	America/Noronha		Brazil/DeNoronha
Link	America/Sao_Paulo	Brazil/East
Link	America/Manaus		Brazil/West
Link	Europe/Brussels		CET
Link	America/Chicago		CST6CDT
Link	America/Halifax		Canada/Atlantic
Link	America/Winnipeg	Canada/Central
# This line is commented out, as the name exceeded the 14-character limit
# and was an unused misnomer.
#Link	America/Regina		Canada/East-Saskatchewan
Link	America/Toronto		Canada/Eastern
Link	America/Edmonton	Canada/Mountain
Link	America/St_Johns	Canada/Newfoundland
Link	America/Vancouver	Canada/Pacific
Link	America/Regina		Canada/Saskatchewan
Link	America/Whitehorse	Canada/Yukon
Link	America/Santiago	Chile/Continental
Link	Pacific/Easter		Chile/EasterIsland
Link	America/Havana		Cuba
Link	Europe/Athens		EET
Link	America/Panama		EST
Link	America/New_York	EST5EDT
Link	Africa/Cairo		Egypt
Link	Europe/Dublin		Eire
# Vanguard section, for most .zi parsers.
#Link	GMT			Etc/GMT
#Link	GMT			Etc/GMT+0
#Link	GMT			Etc/GMT-0
#Link	GMT			Etc/GMT0
#Link	GMT			Etc/Greenwich
# Rearguard section, for TZUpdater 2.3.2 and earlier.
Link	Etc/GMT			Etc/GMT+0
Link	Etc/GMT			Etc/GMT-0
Link	Etc/GMT			Etc/GMT0
Link	Etc/GMT			Etc/Greenwich
# End of rearguard section.
Link	Etc/UTC			Etc/UCT
Link	Etc/UTC			Etc/Universal
Link	Etc/UTC			Etc/Zulu
Link	Europe/London		GB
Link	Europe/London		GB-Eire
# Vanguard section, for most .zi parsers.
#Link	GMT			GMT+0
#Link	GMT			GMT-0
#Link	GMT			GMT0
#Link	GMT			Greenwich
# Rearguard section, for TZUpdater 2.3.2 and earlier.
Link	Etc/GMT			GMT+0
Link	Etc/GMT			GMT-0
Link	Etc/GMT			GMT0
Link	Etc/GMT			Greenwich
# End of rearguard section.
Link	Asia/Hong_Kong		Hongkong
Link	Atlantic/Reykjavik	Iceland
Link	Asia/Tehran		Iran
Link	Asia/Jerusalem		Israel
Link	America/Jamaica		Jamaica
Link	Asia/Tokyo		Japan
Link	Pacific/Kwajalein	Kwajalein
Link	Africa/Tripoli		Libya
Link	Europe/Brussels		MET
Link	America/Phoenix		MST
Link	America/Denver		MST7MDT
Link	America/Tijuana		Mexico/BajaNorte
Link	America/Mazatlan	Mexico/BajaSur
Link	America/Mexico_City	Mexico/General
Link	Pacific/Auckland	NZ
Link	Pacific/Chatham		NZ-CHAT
Link	America/Denver		Navajo	#= America/Shiprock
Link	Asia/Shanghai		PRC
Link	Europe/Warsaw		Poland
Link	Europe/Lisbon		Portugal
Link	Asia/Taipei		ROC
Link	Asia/Seoul		ROK
Link	Asia/Singapore		Singapore
Link	Europe/Istanbul		Turkey
Link	Etc/UTC			UCT
Link	America/Anchorage	US/Alaska
Link	America/Adak		US/Aleutian
Link	America/Phoenix		US/Arizona
Link	America/Chicago		US/Central
Link	America/Indiana/Indianapolis	US/East-Indiana
Link	America/New_York	US/Eastern
Link	Pacific/Honolulu	US/Hawaii
Link	America/Indiana/Knox	US/Indiana-Starke
Link	America/Detroit		US/Michigan
Link	America/Denver		US/Mountain
Link	America/Los_Angeles	US/Pacific
Link	Pacific/Pago_Pago	US/Samoa
Link	Etc/UTC			UTC
Link	Etc/UTC			Universal
Link	Europe/Moscow		W-SU
Link	Etc/UTC			Zulu


# Two-part names that were renamed mostly to three-part names in 1995

# Link	TARGET				LINK-NAME	#= TARGET1
Link	America/Argentina/Buenos_Aires	America/Buenos_Aires
Link	America/Argentina/Catamarca	America/Catamarca
Link	America/Argentina/Cordoba	America/Cordoba
Link	America/Indiana/Indianapolis	America/Indianapolis
Link	America/Argentina/Jujuy		America/Jujuy
Link	America/Indiana/Knox		America/Knox_IN
Link	America/Kentucky/Louisville	America/Louisville
Link	America/Argentina/Mendoza	America/Mendoza
Link	America/St_Thomas	America/Virgin
Link	Pacific/Pago_Pago		Pacific/Samoa


# Pre-2013 practice, which typically had a Zone per zone.tab line

# Link	TARGET			LINK-NAME


# Non-zone.tab locations with timestamps since 1970 that duplicate
# those of an existing location

# Link	TARGET			LINK-NAME
Link	Africa/Bamako	Africa/Timbuktu
Link	America/Argentina/Catamarca	America/Argentina/ComodRivadavia
Link	America/Adak		America/Atka
Link	America/Atikokan	America/Coral_Harbour
Link	America/Tijuana		America/Ensenada
Link	America/Indiana/Indianapolis	America/Fort_Wayne
Link	America/Toronto		America/Montreal
Link	America/Toronto		America/Nipigon
Link	America/Iqaluit		America/Pangnirtung
Link	America/Rio_Branco	America/Porto_Acre
Link	America/Winnipeg	America/Rainy_River
Link	America/Argentina/Cordoba	America/Rosario
Link	America/Tijuana		America/Santa_Isabel
Link	America/Denver		America/Shiprock
Link	America/Toronto		America/Thunder_Bay
Link	America/Edmonton	America/Yellowknife
Link	Antarctica/McMurdo	Antarctica/South_Pole
Link	Asia/Ulaanbaatar	Asia/Choibalsan
Link	Asia/Shanghai		Asia/Chongqing
Link	Asia/Shanghai		Asia/Harbin
Link	Asia/Urumqi		Asia/Kashgar
Link	Asia/Jerusalem		Asia/Tel_Aviv
Link	Europe/Oslo		Atlantic/Jan_Mayen
Link	Australia/Sydney	Australia/Canberra
Link	Australia/Hobart	Australia/Currie
Link	Europe/London		Europe/Belfast
Link	Europe/Chisinau		Europe/Tiraspol
Link	Europe/Kyiv		Europe/Uzhgorod
Link	Europe/Kyiv		Europe/Zaporozhye
Link	Pacific/Kanton		Pacific/Enderbury
Link	Pacific/Honolulu	Pacific/Johnston
Link	Pacific/Chuuk		Pacific/Yap
Link	Europe/Lisbon		WET


# Alternate names for the same location

# Link	TARGET			LINK-NAME	#= TARGET1
Link	Africa/Asmara	Africa/Asmera
Link	America/Nuuk		America/Godthab
Link	Asia/Ashgabat		Asia/Ashkhabad
Link	Asia/Kolkata		Asia/Calcutta
Link	Asia/Shanghai		Asia/Chungking	#= Asia/Chongqing
Link	Asia/Dhaka		Asia/Dacca
# Istanbul is in both continents.
Link	Europe/Istanbul		Asia/Istanbul
Link	Asia/Kathmandu		Asia/Katmandu
Link	Asia/Macau		Asia/Macao
Link	Asia/Yangon		Asia/Rangoon
Link	Asia/Ho_Chi_Minh	Asia/Saigon
Link	Asia/Thimphu		Asia/Thimbu
Link	Asia/Makassar		Asia/Ujung_Pandang
Link	Asia/Ulaanbaatar	Asia/Ulan_Bator
Link	Atlantic/Faroe		Atlantic/Faeroe
Link	Europe/Kyiv		Europe/Kiev
# Classically, Cyprus is in Asia; e.g. see Herodotus, Histories, I.72.
# However, for various reasons many users expect to find it under Europe.
Link	Asia/Nicosia		Europe/Nicosia
Link	Pacific/Honolulu	HST
Link	America/Los_Angeles	PST8PDT
Link	Pacific/Pohnpei		Pacific/Ponape
Link	Pacific/Chuuk		Pacific/Truk