Maps tz database time zone identifiers to Rails time zone identifiers

tz_identifiers_to_rails_identifiers.rb

# blog post: http://blog.slashpoundbang.com/post/2613268281/changing-from-tz-database-identifiers-to-rails-friendly
{
  "Australia/Adelaide"             => "Adelaide",
  "Australia/Broken_Hill"          => "Adelaide",
  "America/Anchorage"              => "Alaska",
  "America/Juneau"                 => "Alaska",
  "America/Nome"                   => "Alaska",
  "America/Yakutat"                => "Alaska",
  "Pacific/Gambier"                => "Alaska",
  "Asia/Almaty"                    => "Almaty",
  "Europe/Amsterdam"               => "Amsterdam",
  "Europe/Athens"                  => "Athens",
  "America/Anguilla"               => "Atlantic Time (Canada)",
  "America/Antigua"                => "Atlantic Time (Canada)",
  "America/Argentina/San_Luis"     => "Atlantic Time (Canada)",
  "America/Aruba"                  => "Atlantic Time (Canada)",
  "America/Asuncion"               => "Atlantic Time (Canada)",
  "America/Barbados"               => "Atlantic Time (Canada)",
  "America/Blanc-Sablon"           => "Atlantic Time (Canada)",
  "America/Boa_Vista"              => "Atlantic Time (Canada)",
  "America/Campo_Grande"           => "Atlantic Time (Canada)",
  "America/Cuiaba"                 => "Atlantic Time (Canada)",
  "America/Curacao"                => "Atlantic Time (Canada)",
  "America/Dominica"               => "Atlantic Time (Canada)",
  "America/Eirunepe"               => "Atlantic Time (Canada)",
  "America/Glace_Bay"              => "Atlantic Time (Canada)",
  "America/Goose_Bay"              => "Atlantic Time (Canada)",
  "America/Grenada"                => "Atlantic Time (Canada)",
  "America/Guadeloupe"             => "Atlantic Time (Canada)",
  "America/Guyana"                 => "Atlantic Time (Canada)",
  "America/Halifax"                => "Atlantic Time (Canada)",
  "America/Manaus"                 => "Atlantic Time (Canada)",
  "America/Marigot"                => "Atlantic Time (Canada)",
  "America/Martinique"             => "Atlantic Time (Canada)",
  "America/Moncton"                => "Atlantic Time (Canada)",
  "America/Montserrat"             => "Atlantic Time (Canada)",
  "America/Porto_Velho"            => "Atlantic Time (Canada)",
  "America/Port_of_Spain"          => "Atlantic Time (Canada)",
  "America/Puerto_Rico"            => "Atlantic Time (Canada)",
  "America/Rio_Branco"             => "Atlantic Time (Canada)",
  "America/Santo_Domingo"          => "Atlantic Time (Canada)",
  "America/St_Barthelemy"          => "Atlantic Time (Canada)",
  "America/St_Kitts"               => "Atlantic Time (Canada)",
  "America/St_Lucia"               => "Atlantic Time (Canada)",
  "America/St_Thomas"              => "Atlantic Time (Canada)",
  "America/St_Vincent"             => "Atlantic Time (Canada)",
  "America/Thule"                  => "Atlantic Time (Canada)",
  "America/Tortola"                => "Atlantic Time (Canada)",
  "Antarctica/Palmer"              => "Atlantic Time (Canada)",
  "Atlantic/Bermuda"               => "Atlantic Time (Canada)",
  "Atlantic/Stanley"               => "Atlantic Time (Canada)",
  "Antarctica/McMurdo"             => "Auckland",
  "Antarctica/South_Pole"          => "Auckland",
  "Pacific/Auckland"               => "Auckland",
  "Pacific/Funafuti"               => "Auckland",
  "Pacific/Kwajalein"              => "Auckland",
  "Pacific/Majuro"                 => "Auckland",
  "Pacific/Nauru"                  => "Auckland",
  "Pacific/Tarawa"                 => "Auckland",
  "Pacific/Wake"                   => "Auckland",
  "Pacific/Wallis"                 => "Auckland",
  "Atlantic/Azores"                => "Azores",
  "Asia/Baghdad"                   => "Baghdad",
  "Asia/Baku"                      => "Baku",
  "Asia/Dubai"                     => "Baku",
  "Indian/Mahe"                    => "Baku",
  "Indian/Mauritius"               => "Baku",
  "Indian/Reunion"                 => "Baku",
  "Asia/Bangkok"                   => "Bangkok",
  "Europe/Belgrade"                => "Belgrade",
  "Europe/Berlin"                  => "Berlin",
  "America/Bogota"                 => "Bogota",
  "Europe/Bratislava"              => "Bratislava",
  "Australia/Brisbane"             => "Brisbane",
  "Europe/Brussels"                => "Brussels",
  "Europe/Bucharest"               => "Bucharest",
  "Europe/Budapest"                => "Budapest",
  "America/Araguaina"              => "Buenos Aires",
  "America/Argentina/Buenos_Aires" => "Buenos Aires",
  "America/Argentina/Catamarca"    => "Buenos Aires",
  "America/Argentina/Cordoba"      => "Buenos Aires",
  "America/Argentina/Jujuy"        => "Buenos Aires",
  "America/Argentina/La_Rioja"     => "Buenos Aires",
  "America/Argentina/Mendoza"      => "Buenos Aires",
  "America/Argentina/Rio_Gallegos" => "Buenos Aires",
  "America/Argentina/Salta"        => "Buenos Aires",
  "America/Argentina/San_Juan"     => "Buenos Aires",
  "America/Argentina/Tucuman"      => "Buenos Aires",
  "America/Argentina/Ushuaia"      => "Buenos Aires",
  "America/Bahia"                  => "Buenos Aires",
  "America/Belem"                  => "Buenos Aires",
  "America/Cayenne"                => "Buenos Aires",
  "America/Fortaleza"              => "Buenos Aires",
  "America/Godthab"                => "Buenos Aires",
  "America/Maceio"                 => "Buenos Aires",
  "America/Miquelon"               => "Buenos Aires",
  "America/Montevideo"             => "Buenos Aires",
  "America/Paramaribo"             => "Buenos Aires",
  "America/Recife"                 => "Buenos Aires",
  "America/Santarem"               => "Buenos Aires",
  "America/Sao_Paulo"              => "Buenos Aires",
  "Antarctica/Rothera"             => "Buenos Aires",
  "Africa/Blantyre"                => "Cairo",
  "Africa/Bujumbura"               => "Cairo",
  "Africa/Cairo"                   => "Cairo",
  "Africa/Gaborone"                => "Cairo",
  "Africa/Johannesburg"            => "Cairo",
  "Africa/Kigali"                  => "Cairo",
  "Africa/Lubumbashi"              => "Cairo",
  "Africa/Lusaka"                  => "Cairo",
  "Africa/Maputo"                  => "Cairo",
  "Africa/Maseru"                  => "Cairo",
  "Africa/Mbabane"                 => "Cairo",
  "Africa/Tripoli"                 => "Cairo",
  "Asia/Amman"                     => "Cairo",
  "Asia/Beirut"                    => "Cairo",
  "Asia/Damascus"                  => "Cairo",
  "Asia/Gaza"                      => "Cairo",
  "Asia/Nicosia"                   => "Cairo",
  "Europe/Chisinau"                => "Cairo",
  "Europe/Kaliningrad"             => "Cairo",
  "Europe/Kiev"                    => "Cairo",
  "Europe/Mariehamn"               => "Cairo",
  "Europe/Simferopol"              => "Cairo",
  "Europe/Uzhgorod"                => "Cairo",
  "Europe/Zaporozhye"              => "Cairo",
  "America/Scoresbysund"           => "Cape Verde Is.",
  "Atlantic/Cape_Verde"            => "Cape Verde Is.",
  "America/Caracas"                => "Caracas",
  "Africa/Casablanca"              => "Casablanca",
  "America/Belize"                 => "Central Time (US & Canada)",
  "America/Cancun"                 => "Central Time (US & Canada)",
  "America/Chicago"                => "Central Time (US & Canada)",
  "America/Costa_Rica"             => "Central Time (US & Canada)",
  "America/El_Salvador"            => "Central Time (US & Canada)",
  "America/Guatemala"              => "Central Time (US & Canada)",
  "America/Indiana/Knox"           => "Central Time (US & Canada)",
  "America/Indiana/Tell_City"      => "Central Time (US & Canada)",
  "America/Managua"                => "Central Time (US & Canada)",
  "America/Matamoros"              => "Central Time (US & Canada)",
  "America/Menominee"              => "Central Time (US & Canada)",
  "America/Merida"                 => "Central Time (US & Canada)",
  "America/North_Dakota/Center"    => "Central Time (US & Canada)",
  "America/North_Dakota/New_Salem" => "Central Time (US & Canada)",
  "America/Rainy_River"            => "Central Time (US & Canada)",
  "America/Rankin_Inlet"           => "Central Time (US & Canada)",
  "America/Regina"                 => "Central Time (US & Canada)",
  "America/Swift_Current"          => "Central Time (US & Canada)",
  "America/Tegucigalpa"            => "Central Time (US & Canada)",
  "America/Winnipeg"               => "Central Time (US & Canada)",
  "Pacific/Easter"                 => "Central Time (US & Canada)",
  "Pacific/Galapagos"              => "Central Time (US & Canada)",
  "America/Chihuahua"              => "Chihuahua",
  "Asia/Chongqing"                 => "Chongqing",
  "Europe/Copenhagen"              => "Copenhagen",
  "Australia/Darwin"               => "Darwin",
  "Antarctica/Mawson"              => "Dhaka",
  "Asia/Bishkek"                   => "Dhaka",
  "Asia/Dhaka"                     => "Dhaka",
  "Asia/Karachi"                   => "Dhaka",
  "Asia/Novokuznetsk"              => "Dhaka",
  "Asia/Omsk"                      => "Dhaka",
  "Asia/Qyzylorda"                 => "Dhaka",
  "Asia/Thimphu"                   => "Dhaka",
  "Indian/Chagos"                  => "Dhaka",
  "Europe/Dublin"                  => "Dublin",
  "America/Atikokan"               => "Eastern Time (US & Canada)",
  "America/Cayman"                 => "Eastern Time (US & Canada)",
  "America/Detroit"                => "Eastern Time (US & Canada)",
  "America/Grand_Turk"             => "Eastern Time (US & Canada)",
  "America/Guayaquil"              => "Eastern Time (US & Canada)",
  "America/Havana"                 => "Eastern Time (US & Canada)",
  "America/Indiana/Indianapolis"   => "Eastern Time (US & Canada)",
  "America/Indiana/Marengo"        => "Eastern Time (US & Canada)",
  "America/Indiana/Petersburg"     => "Eastern Time (US & Canada)",
  "America/Indiana/Vevay"          => "Eastern Time (US & Canada)",
  "America/Indiana/Vincennes"      => "Eastern Time (US & Canada)",
  "America/Indiana/Winamac"        => "Eastern Time (US & Canada)",
  "America/Iqaluit"                => "Eastern Time (US & Canada)",
  "America/Jamaica"                => "Eastern Time (US & Canada)",
  "America/Kentucky/Louisville"    => "Eastern Time (US & Canada)",
  "America/Kentucky/Monticello"    => "Eastern Time (US & Canada)",
  "America/Montreal"               => "Eastern Time (US & Canada)",
  "America/Nassau"                 => "Eastern Time (US & Canada)",
  "America/New_York"               => "Eastern Time (US & Canada)",
  "America/Nipigon"                => "Eastern Time (US & Canada)",
  "America/Panama"                 => "Eastern Time (US & Canada)",
  "America/Pangnirtung"            => "Eastern Time (US & Canada)",
  "America/Port-au-Prince"         => "Eastern Time (US & Canada)",
  "America/Resolute"               => "Eastern Time (US & Canada)",
  "America/Thunder_Bay"            => "Eastern Time (US & Canada)",
  "America/Toronto"                => "Eastern Time (US & Canada)",
  "Pacific/Fiji"                   => "Fiji",
  "Pacific/Guam"                   => "Guam",
  "Africa/Harare"                  => "Harare",
  "America/Adak"                   => "Hawaii",
  "Pacific/Fakaofo"                => "Hawaii",
  "Pacific/Honolulu"               => "Hawaii",
  "Pacific/Johnston"               => "Hawaii",
  "Pacific/Rarotonga"              => "Hawaii",
  "Pacific/Tahiti"                 => "Hawaii",
  "Europe/Helsinki"                => "Helsinki",
  "Australia/Hobart"               => "Hobart",
  "Antarctica/Casey"               => "Hong Kong",
  "Asia/Brunei"                    => "Hong Kong",
  "Asia/Choibalsan"                => "Hong Kong",
  "Asia/Harbin"                    => "Hong Kong",
  "Asia/Hong_Kong"                 => "Hong Kong",
  "Asia/Kashgar"                   => "Hong Kong",
  "Asia/Kuching"                   => "Hong Kong",
  "Asia/Macau"                     => "Hong Kong",
  "Asia/Makassar"                  => "Hong Kong",
  "Asia/Manila"                    => "Hong Kong",
  "Asia/Shanghai"                  => "Hong Kong",
  "Asia/Ulaanbaatar"               => "Hong Kong",
  "Asia/Irkutsk"                   => "Irkutsk",
  "Europe/Istanbul"                => "Istanbul",
  "Antarctica/Davis"               => "Jakarta",
  "Asia/Hovd"                      => "Jakarta",
  "Asia/Ho_Chi_Minh"               => "Jakarta",
  "Asia/Jakarta"                   => "Jakarta",
  "Asia/Phnom_Penh"                => "Jakarta",
  "Asia/Pontianak"                 => "Jakarta",
  "Asia/Vientiane"                 => "Jakarta",
  "Indian/Christmas"               => "Jakarta",
  "Asia/Jerusalem"                 => "Jerusalem",
  "Asia/Kabul"                     => "Kabul",
  "Asia/Kamchatka"                 => "Kamchatka",
  "Asia/Aqtau"                     => "Karachi",
  "Asia/Aqtobe"                    => "Karachi",
  "Asia/Ashgabat"                  => "Karachi",
  "Asia/Dushanbe"                  => "Karachi",
  "Asia/Oral"                      => "Karachi",
  "Asia/Samarkand"                 => "Karachi",
  "Asia/Yekaterinburg"             => "Karachi",
  "Indian/Kerguelen"               => "Karachi",
  "Indian/Maldives"                => "Karachi",
  "Asia/Kathmandu"                 => "Kathmandu",
  "Asia/Kolkata"                   => "Kolkata",
  "Asia/Krasnoyarsk"               => "Krasnoyarsk",
  "Asia/Kuala_Lumpur"              => "Kuala Lumpur",
  "Asia/Kuwait"                    => "Kuwait",
  "America/La_Paz"                 => "La Paz",
  "America/Lima"                   => "Lima",
  "Europe/Lisbon"                  => "Lisbon",
  "Europe/Ljubljana"               => "Ljubljana",
  "Africa/Abidjan"                 => "London",
  "Africa/Accra"                   => "London",
  "Africa/Bamako"                  => "London",
  "Africa/Banjul"                  => "London",
  "Africa/Bissau"                  => "London",
  "Africa/Conakry"                 => "London",
  "Africa/Dakar"                   => "London",
  "Africa/El_Aaiun"                => "London",
  "Africa/Freetown"                => "London",
  "Africa/Lome"                    => "London",
  "Africa/Nouakchott"              => "London",
  "Africa/Ouagadougou"             => "London",
  "Africa/Sao_Tome"                => "London",
  "America/Danmarkshavn"           => "London",
  "Antarctica/Vostok"              => "London",
  "Atlantic/Canary"                => "London",
  "Atlantic/Faroe"                 => "London",
  "Atlantic/Madeira"               => "London",
  "Atlantic/Reykjavik"             => "London",
  "Atlantic/St_Helena"             => "London",
  "Europe/Guernsey"                => "London",
  "Europe/Isle_of_Man"             => "London",
  "Europe/Jersey"                  => "London",
  "Europe/London"                  => "London",
  "Europe/Madrid"                  => "Madrid",
  "Asia/Magadan"                   => "Magadan",
  "America/Mazatlan"               => "Mazatlan",
  "Australia/Melbourne"            => "Melbourne",
  "America/Mexico_City"            => "Mexico City",
  "America/Noronha"                => "Mid-Atlantic",
  "Atlantic/South_Georgia"         => "Mid-Atlantic",
  "Europe/Minsk"                   => "Minsk",
  "Africa/Monrovia"                => "Monrovia",
  "America/Monterrey"              => "Monterrey",
  "Africa/Addis_Ababa"             => "Moscow",
  "Africa/Asmara"                  => "Moscow",
  "Africa/Dar_es_Salaam"           => "Moscow",
  "Africa/Djibouti"                => "Moscow",
  "Africa/Kampala"                 => "Moscow",
  "Africa/Khartoum"                => "Moscow",
  "Africa/Mogadishu"               => "Moscow",
  "Antarctica/Syowa"               => "Moscow",
  "Asia/Aden"                      => "Moscow",
  "Asia/Bahrain"                   => "Moscow",
  "Asia/Qatar"                     => "Moscow",
  "Europe/Moscow"                  => "Moscow",
  "Europe/Samara"                  => "Moscow",
  "Indian/Antananarivo"            => "Moscow",
  "Indian/Comoro"                  => "Moscow",
  "Indian/Mayotte"                 => "Moscow",
  "America/Boise"                  => "Mountain Time (US & Canada)",
  "America/Cambridge_Bay"          => "Mountain Time (US & Canada)",
  "America/Dawson_Creek"           => "Mountain Time (US & Canada)",
  "America/Denver"                 => "Mountain Time (US & Canada)",
  "America/Edmonton"               => "Mountain Time (US & Canada)",
  "America/Hermosillo"             => "Mountain Time (US & Canada)",
  "America/Inuvik"                 => "Mountain Time (US & Canada)",
  "America/Ojinaga"                => "Mountain Time (US & Canada)",
  "America/Phoenix"                => "Mountain Time (US & Canada)",
  "America/Shiprock"               => "Mountain Time (US & Canada)",
  "America/Yellowknife"            => "Mountain Time (US & Canada)",
  "Asia/Colombo"                   => "Mumbai",
  "Asia/Muscat"                    => "Muscat",
  "Africa/Nairobi"                 => "Nairobi",
  "America/St_Johns"               => "Newfoundland",
  "Asia/Novosibirsk"               => "Novosibirsk",
  "Pacific/Enderbury"              => "Nuku'alofa",
  "Pacific/Tongatapu"              => "Nuku'alofa",
  "America/Dawson"                 => "Pacific Time (US & Canada)",
  "America/Los_Angeles"            => "Pacific Time (US & Canada)",
  "America/Santa_Isabel"           => "Pacific Time (US & Canada)",
  "America/Vancouver"              => "Pacific Time (US & Canada)",
  "America/Whitehorse"             => "Pacific Time (US & Canada)",
  "Pacific/Pitcairn"               => "Pacific Time (US & Canada)",
  "Africa/Algiers"                 => "West Central Africa",
  "Africa/Bangui"                  => "West Central Africa",
  "Africa/Brazzaville"             => "West Central Africa",
  "Africa/Ceuta"                   => "West Central Africa",
  "Africa/Douala"                  => "West Central Africa",
  "Africa/Kinshasa"                => "West Central Africa",
  "Africa/Lagos"                   => "West Central Africa",
  "Africa/Libreville"              => "West Central Africa",
  "Africa/Luanda"                  => "West Central Africa",
  "Africa/Malabo"                  => "West Central Africa",
  "Africa/Ndjamena"                => "West Central Africa",
  "Africa/Niamey"                  => "West Central Africa",
  "Africa/Porto-Novo"              => "West Central Africa",
  "Africa/Tunis"                   => "West Central Africa",
  "Africa/Windhoek"                => "West Central Africa",
  "Arctic/Longyearbyen"            => "Paris",
  "Europe/Andorra"                 => "Paris",
  "Europe/Gibraltar"               => "Paris",
  "Europe/Luxembourg"              => "Paris",
  "Europe/Malta"                   => "Paris",
  "Europe/Monaco"                  => "Paris",
  "Europe/Oslo"                    => "Paris",
  "Europe/Paris"                   => "Paris",
  "Europe/Podgorica"               => "Paris",
  "Europe/San_Marino"              => "Paris",
  "Europe/Tirane"                  => "Paris",
  "Europe/Vaduz"                   => "Paris",
  "Europe/Vatican"                 => "Paris",
  "Europe/Zurich"                  => "Paris",
  "Australia/Perth"                => "Perth",
  "Pacific/Port_Moresby"           => "Port Moresby",
  "Europe/Prague"                  => "Prague",
  "Asia/Rangoon"                   => "Rangoon",
  "Indian/Cocos"                   => "Rangoon",
  "Europe/Riga"                    => "Riga",
  "Asia/Riyadh"                    => "Riyadh",
  "Europe/Rome"                    => "Rome",
  "Pacific/Apia"                   => "Samoa",
  "Pacific/Midway"                 => "Samoa",
  "Pacific/Niue"                   => "Samoa",
  "Pacific/Pago_Pago"              => "Samoa",
  "America/Santiago"               => "Santiago",
  "Europe/Sarajevo"                => "Sarajevo",
  "Asia/Seoul"                     => "Seoul",
  "Asia/Singapore"                 => "Singapore",
  "Europe/Skopje"                  => "Skopje",
  "Europe/Sofia"                   => "Sofia",
  "Asia/Anadyr"                    => "Solomon Is.",
  "Pacific/Efate"                  => "Solomon Is.",
  "Pacific/Guadalcanal"            => "Solomon Is.",
  "Pacific/Kosrae"                 => "Solomon Is.",
  "Pacific/Noumea"                 => "Solomon Is.",
  "Pacific/Ponape"                 => "Solomon Is.",
  "Europe/Stockholm"               => "Stockholm",
  "Antarctica/DumontDUrville"      => "Sydney",
  "Asia/Sakhalin"                  => "Sydney",
  "Australia/Currie"               => "Sydney",
  "Australia/Lindeman"             => "Sydney",
  "Australia/Sydney"               => "Sydney",
  "Pacific/Saipan"                 => "Sydney",
  "Pacific/Truk"                   => "Sydney",
  "Asia/Taipei"                    => "Taipei",
  "Europe/Tallinn"                 => "Tallinn",
  "Asia/Tashkent"                  => "Tashkent",
  "Asia/Tbilisi"                   => "Tbilisi",
  "Asia/Tehran"                    => "Tehran",
  "America/Tijuana"                => "Tijuana",
  "Asia/Dili"                      => "Tokyo",
  "Asia/Jayapura"                  => "Tokyo",
  "Asia/Pyongyang"                 => "Tokyo",
  "Asia/Tokyo"                     => "Tokyo",
  "Pacific/Palau"                  => "Tokyo",
  "Asia/Urumqi"                    => "Urumqi",
  "Europe/Vienna"                  => "Vienna",
  "Europe/Vilnius"                 => "Vilnius",
  "Asia/Vladivostok"               => "Vladivostok",
  "Europe/Volgograd"               => "Volgograd",
  "Europe/Warsaw"                  => "Warsaw",
  "Asia/Yakutsk"                   => "Yakutsk",
  "Asia/Yerevan"                   => "Yerevan",
  "Europe/Zagreb"                  => "Zagreb",
}

See the forked-from gist for some useful comments: https://gist.github.com/jpmckinney/767070