javascript get html timezone dropdown

Question

I want to make a html timezone dropdown which will give me result like:

<select name="timezone">
    <option value="Europe/London">(GMT) London</option>
    ....
    ....
</select>

Is there any javascript library which will give me this result ?? Need help

Answer 1

I converted @Maulik Gangani answer into a json object for a more flexible solution

var tzStrings = [
    {"label":"(GMT-12:00) International Date Line West","value":"Etc/GMT+12"},
    {"label":"(GMT-11:00) Midway Island, Samoa","value":"Pacific/Midway"},
    {"label":"(GMT-10:00) Hawaii","value":"Pacific/Honolulu"},
    {"label":"(GMT-09:00) Alaska","value":"US/Alaska"},
    {"label":"(GMT-08:00) Pacific Time (US & Canada)","value":"America/Los_Angeles"},
    {"label":"(GMT-08:00) Tijuana, Baja California","value":"America/Tijuana"},
    {"label":"(GMT-07:00) Arizona","value":"US/Arizona"},
    {"label":"(GMT-07:00) Chihuahua, La Paz, Mazatlan","value":"America/Chihuahua"},
    {"label":"(GMT-07:00) Mountain Time (US & Canada)","value":"US/Mountain"},
    {"label":"(GMT-06:00) Central America","value":"America/Managua"},
    {"label":"(GMT-06:00) Central Time (US & Canada)","value":"US/Central"},
    {"label":"(GMT-06:00) Guadalajara, Mexico City, Monterrey","value":"America/Mexico_City"},
    {"label":"(GMT-06:00) Saskatchewan","value":"Canada/Saskatchewan"},
    {"label":"(GMT-05:00) Bogota, Lima, Quito, Rio Branco","value":"America/Bogota"},
    {"label":"(GMT-05:00) Eastern Time (US & Canada)","value":"US/Eastern"},
    {"label":"(GMT-05:00) Indiana (East)","value":"US/East-Indiana"},
    {"label":"(GMT-04:00) Atlantic Time (Canada)","value":"Canada/Atlantic"},
    {"label":"(GMT-04:00) Caracas, La Paz","value":"America/Caracas"},
    {"label":"(GMT-04:00) Manaus","value":"America/Manaus"},
    {"label":"(GMT-04:00) Santiago","value":"America/Santiago"},
    {"label":"(GMT-03:30) Newfoundland","value":"Canada/Newfoundland"},
    {"label":"(GMT-03:00) Brasilia","value":"America/Sao_Paulo"},
    {"label":"(GMT-03:00) Buenos Aires, Georgetown","value":"America/Argentina/Buenos_Aires"},
    {"label":"(GMT-03:00) Greenland","value":"America/Godthab"},
    {"label":"(GMT-03:00) Montevideo","value":"America/Montevideo"},
    {"label":"(GMT-02:00) Mid-Atlantic","value":"America/Noronha"},
    {"label":"(GMT-01:00) Cape Verde Is.","value":"Atlantic/Cape_Verde"},
    {"label":"(GMT-01:00) Azores","value":"Atlantic/Azores"},
    {"label":"(GMT+00:00) Casablanca, Monrovia, Reykjavik","value":"Africa/Casablanca"},
    {"label":"(GMT+00:00) Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London","value":"Etc/Greenwich"},
    {"label":"(GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna","value":"Europe/Amsterdam"},
    {"label":"(GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague","value":"Europe/Belgrade"},
    {"label":"(GMT+01:00) Brussels, Copenhagen, Madrid, Paris","value":"Europe/Brussels"},
    {"label":"(GMT+01:00) Sarajevo, Skopje, Warsaw, Zagreb","value":"Europe/Sarajevo"},
    {"label":"(GMT+01:00) West Central Africa","value":"Africa/Lagos"},
    {"label":"(GMT+02:00) Amman","value":"Asia/Amman"},
    {"label":"(GMT+02:00) Athens, Bucharest, Istanbul","value":"Europe/Athens"},
    {"label":"(GMT+02:00) Beirut","value":"Asia/Beirut"},
    {"label":"(GMT+02:00) Cairo","value":"Africa/Cairo"},
    {"label":"(GMT+02:00) Harare, Pretoria","value":"Africa/Harare"},
    {"label":"(GMT+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius","value":"Europe/Helsinki"},
    {"label":"(GMT+02:00) Jerusalem","value":"Asia/Jerusalem"},
    {"label":"(GMT+02:00) Minsk","value":"Europe/Minsk"},
    {"label":"(GMT+02:00) Windhoek","value":"Africa/Windhoek"},
    {"label":"(GMT+03:00) Kuwait, Riyadh, Baghdad","value":"Asia/Kuwait"},
    {"label":"(GMT+03:00) Moscow, St. Petersburg, Volgograd","value":"Europe/Moscow"},
    {"label":"(GMT+03:00) Nairobi","value":"Africa/Nairobi"},
    {"label":"(GMT+03:00) Tbilisi","value":"Asia/Tbilisi"},
    {"label":"(GMT+03:30) Tehran","value":"Asia/Tehran"},
    {"label":"(GMT+04:00) Abu Dhabi, Muscat","value":"Asia/Muscat"},
    {"label":"(GMT+04:00) Baku","value":"Asia/Baku"},
    {"label":"(GMT+04:00) Yerevan","value":"Asia/Yerevan"},
    {"label":"(GMT+04:30) Kabul","value":"Asia/Kabul"},
    {"label":"(GMT+05:00) Yekaterinburg","value":"Asia/Yekaterinburg"},
    {"label":"(GMT+05:00) Islamabad, Karachi, Tashkent","value":"Asia/Karachi"},
    {"label":"(GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi","value":"Asia/Calcutta"},
    {"label":"(GMT+05:30) Sri Jayawardenapura","value":"Asia/Calcutta"},
    {"label":"(GMT+05:45) Kathmandu","value":"Asia/Katmandu"},
    {"label":"(GMT+06:00) Almaty, Novosibirsk","value":"Asia/Almaty"},
    {"label":"(GMT+06:00) Astana, Dhaka","value":"Asia/Dhaka"},
    {"label":"(GMT+06:30) Yangon (Rangoon)","value":"Asia/Rangoon"},
    {"label":"(GMT+07:00) Bangkok, Hanoi, Jakarta","value":"Asia/Bangkok"},
    {"label":"(GMT+07:00) Krasnoyarsk","value":"Asia/Krasnoyarsk"},
    {"label":"(GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi","value":"Asia/Hong_Kong"},
    {"label":"(GMT+08:00) Kuala Lumpur, Singapore","value":"Asia/Kuala_Lumpur"},
    {"label":"(GMT+08:00) Irkutsk, Ulaan Bataar","value":"Asia/Irkutsk"},
    {"label":"(GMT+08:00) Perth","value":"Australia/Perth"},
    {"label":"(GMT+08:00) Taipei","value":"Asia/Taipei"},
    {"label":"(GMT+09:00) Osaka, Sapporo, Tokyo","value":"Asia/Tokyo"},
    {"label":"(GMT+09:00) Seoul","value":"Asia/Seoul"},
    {"label":"(GMT+09:00) Yakutsk","value":"Asia/Yakutsk"},
    {"label":"(GMT+09:30) Adelaide","value":"Australia/Adelaide"},
    {"label":"(GMT+09:30) Darwin","value":"Australia/Darwin"},
    {"label":"(GMT+10:00) Brisbane","value":"Australia/Brisbane"},
    {"label":"(GMT+10:00) Canberra, Melbourne, Sydney","value":"Australia/Canberra"},
    {"label":"(GMT+10:00) Hobart","value":"Australia/Hobart"},
    {"label":"(GMT+10:00) Guam, Port Moresby","value":"Pacific/Guam"},
    {"label":"(GMT+10:00) Vladivostok","value":"Asia/Vladivostok"},
    {"label":"(GMT+11:00) Magadan, Solomon Is., New Caledonia","value":"Asia/Magadan"},
    {"label":"(GMT+12:00) Auckland, Wellington","value":"Pacific/Auckland"},
    {"label":"(GMT+12:00) Fiji, Kamchatka, Marshall Is.","value":"Pacific/Fiji"},
    {"label":"(GMT+13:00) Nuku'alofa","value":"Pacific/Tongatapu"}
]

var tzInts = [
    {"label":"(GMT-12:00) International Date Line West","value":"-12"},
    {"label":"(GMT-11:00) Midway Island, Samoa","value":"-11"},
    {"label":"(GMT-10:00) Hawaii","value":"-10"},
    {"label":"(GMT-09:00) Alaska","value":"-9"},
    {"label":"(GMT-08:00) Pacific Time (US & Canada)","value":"-8"},
    {"label":"(GMT-08:00) Tijuana, Baja California","value":"-8"},
    {"label":"(GMT-07:00) Arizona","value":"-7"},
    {"label":"(GMT-07:00) Chihuahua, La Paz, Mazatlan","value":"-7"},
    {"label":"(GMT-07:00) Mountain Time (US & Canada)","value":"-7"},
    {"label":"(GMT-06:00) Central America","value":"-6"},
    {"label":"(GMT-06:00) Central Time (US & Canada)","value":"-6"},
    {"label":"(GMT-05:00) Bogota, Lima, Quito, Rio Branco","value":"-5"},
    {"label":"(GMT-05:00) Eastern Time (US & Canada)","value":"-5"},
    {"label":"(GMT-05:00) Indiana (East)","value":"-5"},
    {"label":"(GMT-04:00) Atlantic Time (Canada)","value":"-4"},
    {"label":"(GMT-04:00) Caracas, La Paz","value":"-4"},
    {"label":"(GMT-04:00) Manaus","value":"-4"},
    {"label":"(GMT-04:00) Santiago","value":"-4"},
    {"label":"(GMT-03:30) Newfoundland","value":"-3.5"},
    {"label":"(GMT-03:00) Brasilia","value":"-3"},
    {"label":"(GMT-03:00) Buenos Aires, Georgetown","value":"-3"},
    {"label":"(GMT-03:00) Greenland","value":"-3"},
    {"label":"(GMT-03:00) Montevideo","value":"-3"},
    {"label":"(GMT-02:00) Mid-Atlantic","value":"-2"},
    {"label":"(GMT-01:00) Cape Verde Is.","value":"-1"},
    {"label":"(GMT-01:00) Azores","value":"-1"},
    {"label":"(GMT+00:00) Casablanca, Monrovia, Reykjavik","value":"0"},
    {"label":"(GMT+00:00) Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London","value":"0"},
    {"label":"(GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna","value":"1"},
    {"label":"(GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague","value":"1"},
    {"label":"(GMT+01:00) Brussels, Copenhagen, Madrid, Paris","value":"1"},
    {"label":"(GMT+01:00) Sarajevo, Skopje, Warsaw, Zagreb","value":"1"},
    {"label":"(GMT+01:00) West Central Africa","value":"1"},
    {"label":"(GMT+02:00) Amman","value":"2"},
    {"label":"(GMT+02:00) Athens, Bucharest, Istanbul","value":"2"},
    {"label":"(GMT+02:00) Beirut","value":"2"},
    {"label":"(GMT+02:00) Cairo","value":"2"},
    {"label":"(GMT+02:00) Harare, Pretoria","value":"2"},
    {"label":"(GMT+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius","value":"2"},
    {"label":"(GMT+02:00) Jerusalem","value":"2"},
    {"label":"(GMT+02:00) Minsk","value":"2"},
    {"label":"(GMT+02:00) Windhoek","value":"2"},
    {"label":"(GMT+03:00) Kuwait, Riyadh, Baghdad","value":"3"},
    {"label":"(GMT+03:00) Moscow, St. Petersburg, Volgograd","value":"3"},
    {"label":"(GMT+03:00) Nairobi","value":"3"},
    {"label":"(GMT+03:00) Tbilisi","value":"3"},
    {"label":"(GMT+03:30) Tehran","value":"3.5"},
    {"label":"(GMT+04:00) Abu Dhabi, Muscat","value":"4"},
    {"label":"(GMT+04:00) Baku","value":"4"},
    {"label":"(GMT+04:00) Yerevan","value":"4"},
    {"label":"(GMT+04:30) Kabul","value":"4.5"},
    {"label":"(GMT+05:00) Yekaterinburg","value":"5"},
    {"label":"(GMT+05:00) Islamabad, Karachi, Tashkent","value":"5"},
    {"label":"(GMT+05:30) Sri Jayawardenapura","value":"5.5"},
    {"label":"(GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi","value":"5.5"},
    {"label":"(GMT+05:45) Kathmandu","value":"5.75"},
    {"label":"(GMT+06:00) Almaty, Novosibirsk","value":"6"},{"label":"(GMT+06:00) Astana, Dhaka","value":"6"},
    {"label":"(GMT+06:30) Yangon (Rangoon)","value":"6.5"},
    {"label":"(GMT+07:00) Bangkok, Hanoi, Jakarta","value":"7"},
    {"label":"(GMT+07:00) Krasnoyarsk","value":"7"},
    {"label":"(GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi","value":"8"},
    {"label":"(GMT+08:00) Kuala Lumpur, Singapore","value":"8"},
    {"label":"(GMT+08:00) Irkutsk, Ulaan Bataar","value":"8"},
    {"label":"(GMT+08:00) Perth","value":"8"},
    {"label":"(GMT+08:00) Taipei","value":"8"},
    {"label":"(GMT+09:00) Osaka, Sapporo, Tokyo","value":"9"},
    {"label":"(GMT+09:00) Seoul","value":"9"},
    {"label":"(GMT+09:00) Yakutsk","value":"9"},
    {"label":"(GMT+09:30) Adelaide","value":"9.5"},
    {"label":"(GMT+09:30) Darwin","value":"9.5"},
    {"label":"(GMT+10:00) Brisbane","value":"10"},
    {"label":"(GMT+10:00) Canberra, Melbourne, Sydney","value":"10"},
    {"label":"(GMT+10:00) Hobart","value":"10"},
    {"label":"(GMT+10:00) Guam, Port Moresby","value":"10"},
    {"label":"(GMT+10:00) Vladivostok","value":"10"},
    {"label":"(GMT+11:00) Magadan, Solomon Is., New Caledonia","value":"11"},
    {"label":"(GMT+12:00) Auckland, Wellington","value":"12"},
    {"label":"(GMT+12:00) Fiji, Kamchatka, Marshall Is.","value":"12"},
    {"label":"(GMT+13:00) Nuku'alofa","value":"13"}
]

To convert either to a select just to something like this

  function timezoneSelect(){
     var options = [],
         select = document.createElement("select");

     for (var i=0; i<tzs.length; i++){
       var tz = tzs[i],
           option = document.createElement("option");

       option.value = tz.value
       option.appendChild(document.createTextNode(tz.label))
       select.appendChild(option)
     }

     return select;
   }