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