Timezones as value label objects. Using them in Shopify Polaris for Select dropdown.

timezones.js

const timezones = [
        {value:"Etc/GMT+12", label:"(GMT-12:00) International Date Line West"},
        {value:"Pacific/Pago_Pago", label:"(GMT-11:00) American Samoa"},
        {value:"Pacific/Midway", label:"(GMT-11:00) Midway Island"},
        {value:"Pacific/Honolulu", label:"(GMT-10:00) Hawaii"},
        {value:"America/Juneau", label:"(GMT-09:00) Alaska"},
        {value:"America/Los_Angeles", label:"(GMT-08:00) Pacific Time (US & Canada)"},
        {value:"America/Tijuana", label:"(GMT-08:00) Tijuana"},
        {value:"America/Phoenix", label:"(GMT-07:00) Arizona"},
        {value:"America/Chihuahua", label:"(GMT-07:00) Chihuahua"},
        {value:"America/Mazatlan", label:"(GMT-07:00) Mazatlan"},
        {value:"America/Denver", label:"(GMT-07:00) Mountain Time (US & Canada)"},
        {value:"America/Guatemala", label:"(GMT-06:00) Central America"},
        {value:"America/Chicago", label:"(GMT-06:00) Central Time (US & Canada)"},
        {value:"America/Mexico_City", label:"(GMT-06:00) Guadalajara Mexico City"},
        {value:"America/Monterrey", label:"(GMT-06:00) Monterrey"},
        {value:"America/Regina", label:"(GMT-06:00) Saskatchewan"},
        {value:"America/Bogota", label:"(GMT-05:00) Bogota"},
        {value:"America/New_York", label:"(GMT-05:00) Eastern Time (US & Canada)"},
        {value:"America/Indiana/Indianapolis", label:"(GMT-05:00) Indiana (East)"},
        {value:"America/Lima", label:"(GMT-05:00) Lima Quito"},
        {value:"America/Halifax", label:"(GMT-04:00) Atlantic Time (Canada)"},
        {value:"America/Caracas", label:"(GMT-04:00) Caracas"},
        {value:"America/Guyana", label:"(GMT-04:00) Georgetown"},
        {value:"America/La_Paz", label:"(GMT-04:00) La Paz"},
        {value:"America/Puerto_Rico", label:"(GMT-04:00) Puerto Rico"},
        {value:"America/Santiago", label:"(GMT-04:00) Santiago"},
        {value:"America/St_Johns", label:"(GMT-03:30) Newfoundland"},
        {value:"America/Sao_Paulo", label:"(GMT-03:00) Brasilia"},
        {value:"America/Argentina/Buenos_Aires", label:"(GMT-03:00) Buenos Aires"},
        {value:"America/Godthab", label:"(GMT-03:00) Greenland"},
        {value:"America/Montevideo", label:"(GMT-03:00) Montevideo"},
        {value:"Atlantic/South_Georgia", label:"(GMT-02:00) Mid-Atlantic"},
        {value:"Atlantic/Azores", label:"(GMT-01:00) Azores"},
        {value:"Atlantic/Cape_Verde", label:"(GMT-01:00) Cape Verde Is."},
        {value:"Europe/London", label:"(GMT+00:00) Edinburgh London"},
        {value:"Europe/Lisbon", label:"(GMT+00:00) Lisbon"},
        {value:"Africa/Monrovia", label:"(GMT+00:00) Monrovia"},
        {value:"Etc/UTC", label:"(GMT+00:00) UTC"},
        {value:"Europe/Dublin", label:"(GMT+00:00) Dublin"},
        {value:"Africa/Casablanca", label:"(GMT+00:00) Casablanca"},
        {value:"Europe/Amsterdam", label:"(GMT+01:00) Amsterdam"},
        {value:"Europe/Belgrade", label:"(GMT+01:00) Belgrade"},
        {value:"Europe/Berlin", label:"(GMT+01:00) Berlin"},
        {value:"Europe/Zurich", label:"(GMT+01:00) Bern Zurich"},
        {value:"Europe/Bratislava", label:"(GMT+01:00) Bratislava"},
        {value:"Europe/Budapest", label:"(GMT+01:00) Budapest"},
        {value:"Europe/Brussels", label:"(GMT+01:00) Brussels"},
        {value:"Europe/Copenhagen", label:"(GMT+01:00) Copenhagen"},
        {value:"Europe/Ljubljana", label:"(GMT+01:00) Ljubljana"},
        {value:"Europe/Madrid", label:"(GMT+01:00) Madrid"},
        {value:"Europe/Paris", label:"(GMT+01:00) Paris"},
        {value:"Europe/Prague", label:"(GMT+01:00) Prague"},
        {value:"Europe/Rome", label:"(GMT+01:00) Rome"},
        {value:"Europe/Sarajevo", label:"(GMT+01:00) Sarajevo"},
        {value:"Europe/Skopje", label:"(GMT+01:00) Skopje"},
        {value:"Europe/Stockholm", label:"(GMT+01:00) Stockholm"},
        {value:"Europe/Vienna", label:"(GMT+01:00) Vienna"},
        {value:"Europe/Warsaw", label:"(GMT+01:00) Warsaw"},
        {value:"Africa/Algiers", label:"(GMT+01:00) West Central Africa"},
        {value:"Europe/Zagreb", label:"(GMT+01:00) Zagreb"},
        {value:"Europe/Athens", label:"(GMT+02:00) Athens"},
        {value:"Europe/Bucharest", label:"(GMT+02:00) Bucharest"},
        {value:"Africa/Cairo", label:"(GMT+02:00) Cairo"},
        {value:"Africa/Harare", label:"(GMT+02:00) Harare"},
        {value:"Europe/Helsinki", label:"(GMT+02:00) Helsinki"},
        {value:"Asia/Jerusalem", label:"(GMT+02:00) Jerusalem"},
        {value:"Europe/Kaliningrad", label:"(GMT+02:00) Kaliningrad"},
        {value:"Europe/Kiev", label:"(GMT+02:00) Kyiv"},
        {value:"Africa/Johannesburg", label:"(GMT+02:00) Pretoria"},
        {value:"Europe/Riga", label:"(GMT+02:00) Riga"},
        {value:"Europe/Sofia", label:"(GMT+02:00) Sofia"},
        {value:"Europe/Tallinn", label:"(GMT+02:00) Tallinn"},
        {value:"Europe/Vilnius", label:"(GMT+02:00) Vilnius"},
        {value:"Asia/Baghdad", label:"(GMT+03:00) Baghdad"},
        {value:"Europe/Istanbul", label:"(GMT+03:00) Istanbul"},
        {value:"Asia/Kuwait", label:"(GMT+03:00) Kuwait"},
        {value:"Europe/Minsk", label:"(GMT+03:00) Minsk"},
        {value:"Europe/Moscow", label:"(GMT+03:00) Moscow St. Petersburg"},
        {value:"Africa/Nairobi", label:"(GMT+03:00) Nairobi"},
        {value:"Europe/Volgograd", label:"(GMT+03:00) Volgograd"},
        {value:"Asia/Riyadh", label:"(GMT+03:00) Riyadh"},
        {value:"Asia/Tehran", label:"(GMT+03:30) Tehran"},
        {value:"Asia/Muscat", label:"(GMT+04:00) Abu Dhabi Muscat"},
        {value:"Asia/Baku", label:"(GMT+04:00) Baku"},
        {value:"Europe/Samara", label:"(GMT+04:00) Samara"},
        {value:"Asia/Tbilisi", label:"(GMT+04:00) Tbilisi"},
        {value:"Asia/Yerevan", label:"(GMT+04:00) Yerevan"},
        {value:"Asia/Kabul", label:"(GMT+04:30) Kabul"},
        {value:"Asia/Yekaterinburg", label:"(GMT+05:00) Ekaterinburg"},
        {value:"Asia/Karachi", label:"(GMT+05:00) Islamabad Karachi"},
        {value:"Asia/Tashkent", label:"(GMT+05:00) Tashkent"},
        {value:"Asia/Kolkata", label:"(GMT+05:30) Chennai Kolkata Mumbai New Delhi"},
        {value:"Asia/Colombo", label:"(GMT+05:30) Sri Jayawardenepura"},
        {value:"Asia/Kathmandu", label:"(GMT+05:45) Kathmandu"},
        {value:"Asia/Almaty", label:"(GMT+06:00) Almaty"},
        {value:"Asia/Dhaka", label:"(GMT+06:00) Astana, Dhaka"},
        {value:"Asia/Urumqi", label:"(GMT+06:00) Urumqi"},
        {value:"Asia/Rangoon", label:"(GMT+06:30) Rangoon"},
        {value:"Asia/Bangkok", label:"(GMT+07:00) Bangkok, Hanoi"},
        {value:"Asia/Jakarta", label:"(GMT+07:00) Jakarta"},
        {value:"Asia/Krasnoyarsk", label:"(GMT+07:00) Krasnoyarsk"},
        {value:"Asia/Novosibirsk", label:"(GMT+07:00) Novosibirsk"},
        {value:"Asia/Shanghai", label:"(GMT+08:00) Beijing"},
        {value:"Asia/Chongqing", label:"(GMT+08:00) Chongqing"},
        {value:"Asia/Hong_Kong", label:"(GMT+08:00) Hong Kong"},
        {value:"Asia/Irkutsk", label:"(GMT+08:00) Irkutsk"},
        {value:"Asia/Kuala_Lumpur", label:"(GMT+08:00) Kuala Lumpur"},
        {value:"Australia/Perth", label:"(GMT+08:00) Perth"},
        {value:"Asia/Singapore", label:"(GMT+08:00) Singapore"},
        {value:"Asia/Taipei", label:"(GMT+08:00) Taipei"},
        {value:"Asia/Ulaanbaatar", label:"(GMT+08:00) Ulaanbaatar"},
        {value:"Asia/Tokyo", label:"(GMT+09:00) Osaka, Sapporo, Tokyo"},
        {value:"Asia/Seoul", label:"(GMT+09:00) Seoul"},
        {value:"Asia/Yakutsk", label:"(GMT+09:00) Yakutsk"},
        {value:"Australia/Adelaide", label:"(GMT+09:30) Adelaide"},
        {value:"Australia/Darwin", label:"(GMT+09:30) Darwin"},
        {value:"Australia/Brisbane", label:"(GMT+10:00) Brisbane"},
        {value:"Australia/Melbourne", label:"(GMT+10:00) Canberra, Melbourne"},
        {value:"Pacific/Guam", label:"(GMT+10:00) Guam"},
        {value:"Australia/Hobart", label:"(GMT+10:00) Hobart"},
        {value:"Pacific/Port_Moresby", label:"(GMT+10:00) Port Moresby"},
        {value:"Australia/Sydney", label:"(GMT+10:00) Sydney"},
        {value:"Asia/Vladivostok", label:"(GMT+10:00) Vladivostok"},
        {value:"Asia/Magadan", label:"(GMT+11:00) Magadan"},
        {value:"Pacific/Noumea", label:"(GMT+11:00) New Caledonia"},
        {value:"Pacific/Guadalcanal", label:"(GMT+11:00) Solomon Is."},
        {value:"Asia/Srednekolymsk", label:"(GMT+11:00) Srednekolymsk"}    ,                 
        {value:"Pacific/Auckland", label:"(GMT+12:00) Auckland, Wellington"},
        {value:"Pacific/Fiji", label:"(GMT+12:00) Fiji"},
        {value:"Asia/Kamchatka", label:"(GMT+12:00) Kamchatka"},
        {value:"Pacific/Majuro", label:"(GMT+12:00) Marshall Is."},
        {value:"Pacific/Chatham", label:"(GMT+12:45) Chatham Is."},
        {value:"Pacific/Tongatapu", label:"(GMT+13:00) Nuku'alofa"},
        {value:"Pacific/Apia", label:"(GMT+13:00) Samoa"},
        {value:"Pacific/Fakaofo", label:"(GMT+13:00) Tokelau Is."},
    ];