Need help using the official IANA timezone database in SQL

Question

I am using T-SQL queries to retrieve data from an Azure SQL database for customer data visualization.

I need a way to use an IANA timezone eg. Europe/Copenhagen to convert a UTC time eg. 10-08-2020 12:32:00 to local time eg. 10-08-2020 14:32:00 in SQL.

(Note that two hours have been added to the UTC time, because the UTC to Copenhagen offset at that time is two hours due to daylight saving.)

The official IANA website has a downloadable timezone database, but I fail to understand how to implement it, specifically in a SQL context.

I have spent a great deal of time trying to crack this challenge, and I welcome any useful input. There seems to be no support for the IANA timezone standard in the Microsoft ecosystem whatsoever.

Answer 1

little late but for me I resolved by mapping between windows and timezone database.

following SQL result is a mapping. There is a column name SQL_Names apply a join with [sys].[Time_Zone_Info] table to get SQL Time Zone detail below is the sample.

Note: the JSON is not covering all the timezone due to character limits here but you may import a full list from the below links.

try out:

DECLARE @TZ_Json VARCHAR(MAX)
SET @TZ_Json = '[{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Abidjan","TZTerritory":"CI"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Accra","TZTerritory":"GH"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Addis_Ababa","TZTerritory":"ET"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Algiers","TZTerritory":"DZ"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Asmera","TZTerritory":"ER"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Bamako","TZTerritory":"ML"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Bangui","TZTerritory":"CF"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Banjul","TZTerritory":"GM"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Bissau","TZTerritory":"GW"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Blantyre","TZTerritory":"MW"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Brazzaville","TZTerritory":"CG"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Bujumbura","TZTerritory":"BI"},{"SQLName":"Egypt Standard Time","TZName":"Africa\/Cairo","TZTerritory":"001"},{"SQLName":"Egypt Standard Time","TZName":"Africa\/Cairo","TZTerritory":"EG"},{"SQLName":"Morocco Standard Time","TZName":"Africa\/Casablanca","TZTerritory":"001"},{"SQLName":"Morocco Standard Time","TZName":"Africa\/Casablanca","TZTerritory":"MA"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Conakry","TZTerritory":"GN"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Dakar","TZTerritory":"SN"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Dar_es_Salaam","TZTerritory":"TZ"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Djibouti","TZTerritory":"DJ"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Douala","TZTerritory":"CM"},{"SQLName":"Morocco Standard Time","TZName":"Africa\/El_Aaiun","TZTerritory":"EH"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Freetown","TZTerritory":"SL"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Gaborone","TZTerritory":"BW"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Harare","TZTerritory":"ZW"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Johannesburg","TZTerritory":"ZA"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Johannesburg","TZTerritory":"001"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Juba","TZTerritory":"SS"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Kampala","TZTerritory":"UG"},{"SQLName":"Sudan Standard Time","TZName":"Africa\/Khartoum","TZTerritory":"001"},{"SQLName":"Sudan Standard Time","TZName":"Africa\/Khartoum","TZTerritory":"SD"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Kigali","TZTerritory":"RW"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Kinshasa","TZTerritory":"CD"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Lagos","TZTerritory":"001"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Lagos","TZTerritory":"NG"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Libreville","TZTerritory":"GA"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Lome","TZTerritory":"TG"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Luanda","TZTerritory":"AO"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Lubumbashi","TZTerritory":"CD"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Lusaka","TZTerritory":"ZM"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Malabo","TZTerritory":"GQ"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Maputo","TZTerritory":"MZ"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Maseru","TZTerritory":"LS"},{"SQLName":"South Africa Standard Time","TZName":"Africa\/Mbabane","TZTerritory":"SZ"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Mogadishu","TZTerritory":"SO"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Monrovia","TZTerritory":"LR"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Nairobi","TZTerritory":"001"},{"SQLName":"E. Africa Standard Time","TZName":"Africa\/Nairobi","TZTerritory":"KE"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Ndjamena","TZTerritory":"TD"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Niamey","TZTerritory":"NE"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Nouakchott","TZTerritory":"MR"},{"SQLName":"Greenwich Standard Time","TZName":"Africa\/Ouagadougou","TZTerritory":"BF"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Porto-Novo","TZTerritory":"BJ"},{"SQLName":"Sao Tome Standard Time","TZName":"Africa\/Sao_Tome","TZTerritory":"001"},{"SQLName":"Sao Tome Standard Time","TZName":"Africa\/Sao_Tome","TZTerritory":"ST"},{"SQLName":"Libya Standard Time","TZName":"Africa\/Tripoli","TZTerritory":"001"},{"SQLName":"Libya Standard Time","TZName":"Africa\/Tripoli","TZTerritory":"LY"},{"SQLName":"W. Central Africa Standard Time","TZName":"Africa\/Tunis","TZTerritory":"TN"},{"SQLName":"Namibia Standard Time","TZName":"Africa\/Windhoek","TZTerritory":"001"},{"SQLName":"Namibia Standard Time","TZName":"Africa\/Windhoek","TZTerritory":"NA"},{"SQLName":"Aleutian Standard Time","TZName":"America\/Adak","TZTerritory":"001"},{"SQLName":"Aleutian Standard Time","TZName":"America\/Adak","TZTerritory":"US"},{"SQLName":"Alaskan Standard Time","TZName":"America\/Anchorage","TZTerritory":"001"},{"SQLName":"Alaskan Standard Time","TZName":"America\/Anchorage America\/Juneau America\/Metlakatla America\/Nome America\/Sitka America\/Yakutat","TZTerritory":"US"},{"SQLName":"SA Western Standard Time","TZName":"America\/Anguilla","TZTerritory":"AI"},{"SQLName":"SA Western Standard Time","TZName":"America\/Antigua","TZTerritory":"AG"},{"SQLName":"Tocantins Standard Time","TZName":"America\/Araguaina","TZTerritory":"001"},{"SQLName":"Tocantins Standard Time","TZName":"America\/Araguaina","TZTerritory":"BR"},{"SQLName":"SA Western Standard Time","TZName":"America\/Aruba","TZTerritory":"AW"},{"SQLName":"Paraguay Standard Time","TZName":"America\/Asuncion","TZTerritory":"001"},{"SQLName":"Paraguay Standard Time","TZName":"America\/Asuncion","TZTerritory":"PY"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"Bahia Standard Time","TZName":"America\/Bahia","TZTerritory":"001"},{"SQLName":"Bahia Standard Time","TZName":"America\/Bahia","TZTerritory":"BR"},{"SQLName":"SA Western Standard Time","TZName":"America\/Barbados","TZTerritory":"BB"},{"SQLName":"Central America Standard Time","TZName":"America\/Belize","TZTerritory":"BZ"},{"SQLName":"SA Western Standard Time","TZName":"America\/Blanc-Sablon","TZTerritory":"CA"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Bogota","TZTerritory":"CO"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Bogota","TZTerritory":"001"},{"SQLName":"Argentina Standard Time","TZName":"America\/Buenos_Aires","TZTerritory":"001"},{"SQLName":"Argentina Standard Time","TZName":"America\/Buenos_Aires America\/Argentina\/La_Rioja America\/Argentina\/Rio_Gallegos America\/Argentina\/Salta America\/Argentina\/San_Juan America\/Argentina\/San_Luis America\/Argentina\/Tucuman America\/Argentina\/Ushuaia America\/Catamarca America\/Cordoba America\/Juju","TZTerritory":"AR"},{"SQLName":"Eastern Standard Time (Mexico)","TZName":"America\/Cancun","TZTerritory":"001"},{"SQLName":"Eastern Standard Time (Mexico)","TZName":"America\/Cancun","TZTerritory":"MX"},{"SQLName":"Venezuela Standard Time","TZName":"America\/Caracas","TZTerritory":"001"},{"SQLName":"Venezuela Standard Time","TZName":"America\/Caracas","TZTerritory":"VE"},{"SQLName":"SA Eastern Standard Time","TZName":"America\/Cayenne","TZTerritory":"001"},{"SQLName":"SA Eastern Standard Time","TZName":"America\/Cayenne","TZTerritory":"GF"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Cayman","TZTerritory":"KY"},{"SQLName":"Central Standard Time","TZName":"America\/Chicago","TZTerritory":"001"},{"SQLName":"Central Standard Time","TZName":"America\/Chicago America\/Indiana\/Knox America\/Indiana\/Tell_City America\/Menominee America\/North_Dakota\/Beulah America\/North_Dakota\/Center America\/North_Dakota\/New_Salem","TZTerritory":"US"},{"SQLName":"Mountain Standard Time (Mexico)","TZName":"America\/Chihuahua","TZTerritory":"001"},{"SQLName":"Mountain Standard Time (Mexico)","TZName":"America\/Chihuahua America\/Mazatlan","TZTerritory":"MX"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Coral_Harbour","TZTerritory":"CA"},{"SQLName":"Central America Standard Time","TZName":"America\/Costa_Rica","TZTerritory":"CR"},{"SQLName":"US Mountain Standard Time","TZName":"America\/Creston America\/Dawson_Creek America\/Fort_Nelson","TZTerritory":"CA"},{"SQLName":"Central Brazilian Standard Time","TZName":"America\/Cuiaba","TZTerritory":"001"},{"SQLName":"Central Brazilian Standard Time","TZName":"America\/Cuiaba America\/Campo_Grande","TZTerritory":"BR"},{"SQLName":"SA Western Standard Time","TZName":"America\/Curacao","TZTerritory":"CW"},{"SQLName":"UTC","TZName":"America\/Danmarkshavn","TZTerritory":"GL"},{"SQLName":"Mountain Standard Time","TZName":"America\/Denver","TZTerritory":"001"},{"SQLName":"Mountain Standard Time","TZName":"America\/Denver America\/Boise","TZTerritory":"US"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"SA Western Standard Time","TZName":"America\/Dominica","TZTerritory":"DM"},{"SQLName":"Mountain Standard Time","TZName":"America\/Edmonton America\/Cambridge_Bay America\/Inuvik America\/Yellowknife","TZTerritory":"CA"},{"SQLName":"Central America Standard Time","TZName":"America\/El_Salvador","TZTerritory":"SV"},{"SQLName":"SA Eastern Standard Time","TZName":"America\/Fortaleza America\/Belem America\/Maceio America\/Recife America\/Santarem","TZTerritory":"BR"},{"SQLName":"Greenland Standard Time","TZName":"America\/Godthab","TZTerritory":"001"},{"SQLName":"Greenland Standard Time","TZName":"America\/Godthab","TZTerritory":"GL"},{"SQLName":"Turks And Caicos Standard Time","TZName":"America\/Grand_Turk","TZTerritory":"001"},{"SQLName":"Turks And Caicos Standard Time","TZName":"America\/Grand_Turk","TZTerritory":"TC"},{"SQLName":"SA Western Standard Time","TZName":"America\/Grenada","TZTerritory":"GD"},{"SQLName":"SA Western Standard Time","TZName":"America\/Guadeloupe","TZTerritory":"GP"},{"SQLName":"Central America Standard Time","TZName":"America\/Guatemala","TZTerritory":"GT"},{"SQLName":"Central America Standard Time","TZName":"America\/Guatemala","TZTerritory":"001"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Guayaquil","TZTerritory":"EC"},{"SQLName":"SA Western Standard Time","TZName":"America\/Guyana","TZTerritory":"GY"},{"SQLName":"Atlantic Standard Time","TZName":"America\/Halifax","TZTerritory":"001"},{"SQLName":"Atlantic Standard Time","TZName":"America\/Halifax America\/Glace_Bay America\/Goose_Bay America\/Moncton","TZTerritory":"CA"},{"SQLName":"Cuba Standard Time","TZName":"America\/Havana","TZTerritory":"001"},{"SQLName":"Cuba Standard Time","TZName":"America\/Havana","TZTerritory":"CU"},{"SQLName":"US Mountain Standard Time","TZName":"America\/Hermosillo","TZTerritory":"MX"},{"SQLName":"US Eastern Standard Time","TZName":"America\/Indianapolis","TZTerritory":"001"},{"SQLName":"US Eastern Standard Time","TZName":"America\/Indianapolis America\/Indiana\/Marengo America\/Indiana\/Vevay","TZTerritory":"US"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Jamaica","TZTerritory":"JM"},{"SQLName":"SA Western Standard Time","TZName":"America\/Kralendijk","TZTerritory":"BQ"},{"SQLName":"SA Western Standard Time","TZName":"America\/La_Paz","TZTerritory":"BO"},{"SQLName":"SA Western Standard Time","TZName":"America\/La_Paz","TZTerritory":"001"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Lima","TZTerritory":"PE"},{"SQLName":"Pacific Standard Time","TZName":"America\/Los_Angeles","TZTerritory":"001"},{"SQLName":"Pacific Standard Time","TZName":"America\/Los_Angeles","TZTerritory":"US"},{"SQLName":"SA Western Standard Time","TZName":"America\/Lower_Princes","TZTerritory":"SX"},{"SQLName":"Central America Standard Time","TZName":"America\/Managua","TZTerritory":"NI"},{"SQLName":"SA Western Standard Time","TZName":"America\/Manaus America\/Boa_Vista America\/Porto_Velho","TZTerritory":"BR"},{"SQLName":"SA Western Standard Time","TZName":"America\/Marigot","TZTerritory":"MF"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"SA Western Standard Time","TZName":"America\/Martinique","TZTerritory":"MQ"},{"SQLName":"Central Standard Time","TZName":"America\/Matamoros","TZTerritory":"MX"},{"SQLName":"Central Standard Time (Mexico)","TZName":"America\/Mexico_City","TZTerritory":"001"},{"SQLName":"Central Standard Time (Mexico)","TZName":"America\/Mexico_City America\/Bahia_Banderas America\/Merida America\/Monterrey","TZTerritory":"MX"},{"SQLName":"Saint Pierre Standard Time","TZName":"America\/Miquelon","TZTerritory":"001"},{"SQLName":"Saint Pierre Standard Time","TZName":"America\/Miquelon","TZTerritory":"PM"},{"SQLName":"Montevideo Standard Time","TZName":"America\/Montevideo","TZTerritory":"001"},{"SQLName":"Montevideo Standard Time","TZName":"America\/Montevideo","TZTerritory":"UY"},{"SQLName":"SA Western Standard Time","TZName":"America\/Montserrat","TZTerritory":"MS"},{"SQLName":"Eastern Standard Time","TZName":"America\/Nassau","TZTerritory":"BS"},{"SQLName":"Eastern Standard Time","TZName":"America\/New_York","TZTerritory":"001"},{"SQLName":"Eastern Standard Time","TZName":"America\/New_York America\/Detroit America\/Indiana\/Petersburg America\/Indiana\/Vincennes America\/Indiana\/Winamac America\/Kentucky\/Monticello America\/Louisville","TZTerritory":"US"},{"SQLName":"UTC-02","TZName":"America\/Noronha","TZTerritory":"BR"},{"SQLName":"Mountain Standard Time","TZName":"America\/Ojinaga","TZTerritory":"MX"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Panama","TZTerritory":"PA"},{"SQLName":"SA Eastern Standard Time","TZName":"America\/Paramaribo","TZTerritory":"SR"},{"SQLName":"US Mountain Standard Time","TZName":"America\/Phoenix","TZTerritory":"001"},{"SQLName":"US Mountain Standard Time","TZName":"America\/Phoenix","TZTerritory":"US"},{"SQLName":"SA Western Standard Time","TZName":"America\/Port_of_Spain","TZTerritory":"TT"},{"SQLName":"Haiti Standard Time","TZName":"America\/Port-au-Prince","TZTerritory":"001"},{"SQLName":"Haiti Standard Time","TZName":"America\/Port-au-Prince","TZTerritory":"HT"},{"SQLName":"SA Western Standard Time","TZName":"America\/Puerto_Rico","TZTerritory":"PR"},{"SQLName":"Magallanes Standard Time","TZName":"America\/Punta_Arenas","TZTerritory":"001"},{"SQLName":"Magallanes Standard Time","TZName":"America\/Punta_Arenas","TZTerritory":"CL"},{"SQLName":"Canada Central Standard Time","TZName":"America\/Regina","TZTerritory":"001"},{"SQLName":"Canada Central Standard Time","TZName":"America\/Regina America\/Swift_Current","TZTerritory":"CA"},{"SQLName":"SA Pacific Standard Time","TZName":"America\/Rio_Branco America\/Eirunepe","TZTerritory":"BR"},{"SQLName":"Pacific SA Standard Time","TZName":"America\/Santiago","TZTerritory":"001"},{"SQLName":"Pacific SA Standard Time","TZName":"America\/Santiago","TZTerritory":"CL"},{"SQLName":"SA Western Standard Time","TZName":"America\/Santo_Domingo","TZTerritory":"DO"},{"SQLName":"E. South America Standard Time","TZName":"America\/Sao_Paulo","TZTerritory":"001"},{"SQLName":"E. South America Standard Time","TZName":"America\/Sao_Paulo","TZTerritory":"BR"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"Azores Standard Time","TZName":"America\/Scoresbysund","TZTerritory":"GL"},{"SQLName":"SA Western Standard Time","TZName":"America\/St_Barthelemy","TZTerritory":"BL"},{"SQLName":"Newfoundland Standard Time","TZName":"America\/St_Johns","TZTerritory":"001"},{"SQLName":"Newfoundland Standard Time","TZName":"America\/St_Johns","TZTerritory":"CA"},{"SQLName":"SA Western Standard Time","TZName":"America\/St_Kitts","TZTerritory":"KN"},{"SQLName":"SA Western Standard Time","TZName":"America\/St_Lucia","TZTerritory":"LC"},{"SQLName":"SA Western Standard Time","TZName":"America\/St_Thomas","TZTerritory":"VI"},{"SQLName":"SA Western Standard Time","TZName":"America\/St_Vincent","TZTerritory":"VC"},{"SQLName":"Central America Standard Time","TZName":"America\/Tegucigalpa","TZTerritory":"HN"},{"SQLName":"Atlantic Standard Time","TZName":"America\/Thule","TZTerritory":"GL"},{"SQLName":"Pacific Standard Time (Mexico)","TZName":"America\/Tijuana","TZTerritory":"001"},{"SQLName":"Pacific Standard Time (Mexico)","TZName":"America\/Tijuana America\/Santa_Isabel","TZTerritory":"MX"},{"SQLName":"Eastern Standard Time","TZName":"America\/Toronto America\/Iqaluit America\/Montreal America\/Nipigon America\/Pangnirtung America\/Thunder_Bay","TZTerritory":"CA"},{"SQLName":"SA Western Standard Time","TZName":"America\/Tortola","TZTerritory":"VG"},{"SQLName":"Pacific Standard Time","TZName":"America\/Vancouver","TZTerritory":"CA"},{"SQLName":"Yukon Standard Time","TZName":"America\/Whitehorse","TZTerritory":"001"},{"SQLName":"Yukon Standard Time","TZName":"America\/Whitehorse America\/Dawson","TZTerritory":"CA"},{"SQLName":"Central Standard Time","TZName":"America\/Winnipeg America\/Rainy_River America\/Rankin_Inlet America\/Resolute","TZTerritory":"CA"},{"SQLName":"Central Pacific Standard Time","TZName":"Antarctica\/Casey","TZTerritory":"AQ"},{"SQLName":"SE Asia Standard Time","TZName":"Antarctica\/Davis","TZTerritory":"AQ"},{"SQLName":"West Pacific Standard Time","TZName":"Antarctica\/DumontDUrville","TZTerritory":"AQ"},{"SQLName":"West Asia Standard Time","TZName":"Antarctica\/Mawson","TZTerritory":"AQ"},{"SQLName":"New Zealand Standard Time","TZName":"Antarctica\/McMurdo","TZTerritory":"AQ"},{"SQLName":"SA Eastern Standard Time","TZName":"Antarctica\/Rothera Antarctica\/Palmer","TZTerritory":"AQ"},{"SQLName":"E. Africa Standard Time","TZName":"Antarctica\/Syowa","TZTerritory":"AQ"},{"SQLName":"Central Asia Standard Time","TZName":"Antarctica\/Vostok","TZTerritory":"AQ"},{"SQLName":"W. Europe Standard Time","TZName":"Arctic\/Longyearbyen","TZTerritory":"SJ"},{"SQLName":"Arab Standard Time","TZName":"Asia\/Aden","TZTerritory":"YE"},{"SQLName":"Central Asia Standard Time","TZName":"Asia\/Almaty","TZTerritory":"001"},{"SQLName":"Central Asia Standard Time","TZName":"Asia\/Almaty Asia\/Qostanay","TZTerritory":"KZ"},{"SQLName":"Jordan Standard Time","TZName":"Asia\/Amman","TZTerritory":"001"},{"SQLName":"Jordan Standard Time","TZName":"Asia\/Amman","TZTerritory":"JO"},{"SQLName":"West Asia Standard Time","TZName":"Asia\/Ashgabat","TZTerritory":"TM"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"Arabic Standard Time","TZName":"Asia\/Baghdad","TZTerritory":"001"},{"SQLName":"Arabic Standard Time","TZName":"Asia\/Baghdad","TZTerritory":"IQ"},{"SQLName":"Arab Standard Time","TZName":"Asia\/Bahrain","TZTerritory":"BH"},{"SQLName":"Azerbaijan Standard Time","TZName":"Asia\/Baku","TZTerritory":"001"},{"SQLName":"Azerbaijan Standard Time","TZName":"Asia\/Baku","TZTerritory":"AZ"},{"SQLName":"SE Asia Standard Time","TZName":"Asia\/Bangkok","TZTerritory":"TH"},{"SQLName":"SE Asia Standard Time","TZName":"Asia\/Bangkok","TZTerritory":"001"},{"SQLName":"Altai Standard Time","TZName":"Asia\/Barnaul","TZTerritory":"001"},{"SQLName":"Altai Standard Time","TZName":"Asia\/Barnaul","TZTerritory":"RU"},{"SQLName":"Middle East Standard Time","TZName":"Asia\/Beirut","TZTerritory":"001"},{"SQLName":"Middle East Standard Time","TZName":"Asia\/Beirut","TZTerritory":"LB"},{"SQLName":"Central Asia Standard Time","TZName":"Asia\/Bishkek","TZTerritory":"KG"},{"SQLName":"Singapore Standard Time","TZName":"Asia\/Brunei","TZTerritory":"BN"},{"SQLName":"India Standard Time","TZName":"Asia\/Calcutta","TZTerritory":"001"},{"SQLName":"India Standard Time","TZName":"Asia\/Calcutta","TZTerritory":"IN"},{"SQLName":"Transbaikal Standard Time","TZName":"Asia\/Chita","TZTerritory":"001"},{"SQLName":"Transbaikal Standard Time","TZName":"Asia\/Chita","TZTerritory":"RU"},{"SQLName":"Sri Lanka Standard Time","TZName":"Asia\/Colombo","TZTerritory":"001"},{"SQLName":"Sri Lanka Standard Time","TZName":"Asia\/Colombo","TZTerritory":"LK"},{"SQLName":"Syria Standard Time","TZName":"Asia\/Damascus","TZTerritory":"001"},{"SQLName":"Syria Standard Time","TZName":"Asia\/Damascus","TZTerritory":"SY"},{"SQLName":"Bangladesh Standard Time","TZName":"Asia\/Dhaka","TZTerritory":"001"},{"SQLName":"Bangladesh Standard Time","TZName":"Asia\/Dhaka","TZTerritory":"BD"},{"SQLName":"Tokyo Standard Time","TZName":"Asia\/Dili","TZTerritory":"TL"},{"SQLName":"Arabian Standard Time","TZName":"Asia\/Dubai","TZTerritory":"001"},{"SQLName":"Arabian Standard Time","TZName":"Asia\/Dubai","TZTerritory":"AE"},{"SQLName":"West Asia Standard Time","TZName":"Asia\/Dushanbe","TZTerritory":"TJ"},{"SQLName":"West Bank Standard Time","TZName":"Asia\/Hebron","TZTerritory":"001"},{"SQLName":"West Bank Standard Time","TZName":"Asia\/Hebron Asia\/Gaza","TZTerritory":"PS"},{"SQLName":"China Standard Time","TZName":"Asia\/Hong_Kong","TZTerritory":"HK"},{"SQLName":"W. Mongolia Standard Time","TZName":"Asia\/Hovd","TZTerritory":"001"},{"SQLName":"W. Mongolia Standard Time","TZName":"Asia\/Hovd","TZTerritory":"MN"},{"SQLName":"North Asia East Standard Time","TZName":"Asia\/Irkutsk","TZTerritory":"001"},{"SQLName":"North Asia East Standard Time","TZName":"Asia\/Irkutsk","TZTerritory":"RU"},{"SQLName":"SE Asia Standard Time","TZName":"Asia\/Jakarta Asia\/Pontianak","TZTerritory":"ID"},{"SQLName":"Tokyo Standard Time","TZName":"Asia\/Jayapura","TZTerritory":"ID"},{"SQLName":"Israel Standard Time","TZName":"Asia\/Jerusalem","TZTerritory":"001"},{"SQLName":"Israel Standard Time","TZName":"Asia\/Jerusalem","TZTerritory":"IL"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"Afghanistan Standard Time","TZName":"Asia\/Kabul","TZTerritory":"001"},{"SQLName":"Afghanistan Standard Time","TZName":"Asia\/Kabul","TZTerritory":"AF"},{"SQLName":"Russia Time Zone 11","TZName":"Asia\/Kamchatka","TZTerritory":"001"},{"SQLName":"Russia Time Zone 11","TZName":"Asia\/Kamchatka Asia\/Anadyr","TZTerritory":"RU"},{"SQLName":"Pakistan Standard Time","TZName":"Asia\/Karachi","TZTerritory":"001"},{"SQLName":"Pakistan Standard Time","TZName":"Asia\/Karachi","TZTerritory":"PK"},{"SQLName":"Nepal Standard Time","TZName":"Asia\/Katmandu","TZTerritory":"001"},{"SQLName":"Nepal Standard Time","TZName":"Asia\/Katmandu","TZTerritory":"NP"},{"SQLName":"North Asia Standard Time","TZName":"Asia\/Krasnoyarsk","TZTerritory":"001"},{"SQLName":"North Asia Standard Time","TZName":"Asia\/Krasnoyarsk Asia\/Novokuznetsk","TZTerritory":"RU"},{"SQLName":"Singapore Standard Time","TZName":"Asia\/Kuala_Lumpur Asia\/Kuching","TZTerritory":"MY"},{"SQLName":"Arab Standard Time","TZName":"Asia\/Kuwait","TZTerritory":"KW"},{"SQLName":"China Standard Time","TZName":"Asia\/Macau","TZTerritory":"MO"},{"SQLName":"Magadan Standard Time","TZName":"Asia\/Magadan","TZTerritory":"001"},{"SQLName":"Magadan Standard Time","TZName":"Asia\/Magadan","TZTerritory":"RU"},{"SQLName":"Singapore Standard Time","TZName":"Asia\/Makassar","TZTerritory":"ID"},{"SQLName":"Singapore Standard Time","TZName":"Asia\/Manila","TZTerritory":"PH"},{"SQLName":"Arabian Standard Time","TZName":"Asia\/Muscat","TZTerritory":"OM"},{"SQLName":"GTB Standard Time","TZName":"Asia\/Nicosia Asia\/Famagusta","TZTerritory":"CY"},{"SQLName":"N. Central Asia Standard Time","TZName":"Asia\/Novosibirsk","TZTerritory":"001"},{"SQLName":"N. Central Asia Standard Time","TZName":"Asia\/Novosibirsk","TZTerritory":"RU"},{"SQLName":"Omsk Standard Time","TZName":"Asia\/Omsk","TZTerritory":"001"},{"SQLName":"Omsk Standard Time","TZName":"Asia\/Omsk","TZTerritory":"RU"},{"SQLName":"West Asia Standard Time","TZName":"Asia\/Oral Asia\/Aqtau Asia\/Aqtobe Asia\/Atyrau","TZTerritory":"KZ"},{"SQLName":"SE Asia Standard Time","TZName":"Asia\/Phnom_Penh","TZTerritory":"KH"},{"SQLName":"North Korea Standard Time","TZName":"Asia\/Pyongyang","TZTerritory":"001"},{"SQLName":"North Korea Standard Time","TZName":"Asia\/Pyongyang","TZTerritory":"KP"},{"SQLName":"Arab Standard Time","TZName":"Asia\/Qatar","TZTerritory":"QA"},{"SQLName":"Qyzylorda Standard Time","TZName":"Asia\/Qyzylorda","TZTerritory":"001"},{"SQLName":"Qyzylorda Standard Time","TZName":"Asia\/Qyzylorda","TZTerritory":"KZ"},{"SQLName":"Myanmar Standard Time","TZName":"Asia\/Rangoon","TZTerritory":"001"},{"SQLName":"Myanmar Standard Time","TZName":"Asia\/Rangoon","TZTerritory":"MM"},{"SQLName":"Arab Standard Time","TZName":"Asia\/Riyadh","TZTerritory":"SA"},{"SQLName":"Arab Standard Time","TZName":"Asia\/Riyadh","TZTerritory":"001"},{"SQLName":"SE Asia Standard Time","TZName":"Asia\/Saigon","TZTerritory":"VN"},{"SQLName":"Sakhalin Standard Time","TZName":"Asia\/Sakhalin","TZTerritory":"001"},{"SQLName":"Sakhalin Standard Time","TZName":"Asia\/Sakhalin","TZTerritory":"RU"},'
SET @TZ_Json = @TZ_Json + '{"SQLName":"Korea Standard Time","TZName":"Asia\/Seoul","TZTerritory":"001"},{"SQLName":"Korea Standard Time","TZName":"Asia\/Seoul","TZTerritory":"KR"},{"SQLName":"China Standard Time","TZName":"Asia\/Shanghai","TZTerritory":"001"},{"SQLName":"China Standard Time","TZName":"Asia\/Shanghai","TZTerritory":"CN"},{"SQLName":"Singapore Standard Time","TZName":"Asia\/Singapore","TZTerritory":"SG"},{"SQLName":"Singapore Standard Time","TZName":"Asia\/Singapore","TZTerritory":"001"},{"SQLName":"Russia Time Zone 10","TZName":"Asia\/Srednekolymsk","TZTerritory":"001"},{"SQLName":"Russia Time Zone 10","TZName":"Asia\/Srednekolymsk","TZTerritory":"RU"},{"SQLName":"Taipei Standard Time","TZName":"Asia\/Taipei","TZTerritory":"001"},{"SQLName":"Taipei Standard Time","TZName":"Asia\/Taipei","TZTerritory":"TW"},{"SQLName":"West Asia Standard Time","TZName":"Asia\/Tashkent","TZTerritory":"001"},{"SQLName":"West Asia Standard Time","TZName":"Asia\/Tashkent Asia\/Samarkand","TZTerritory":"UZ"},{"SQLName":"Georgian Standard Time","TZName":"Asia\/Tbilisi","TZTerritory":"001"},{"SQLName":"Georgian Standard Time","TZName":"Asia\/Tbilisi","TZTerritory":"GE"},{"SQLName":"Iran Standard Time","TZName":"Asia\/Tehran","TZTerritory":"001"},{"SQLName":"Iran Standard Time","TZName":"Asia\/Tehran","TZTerritory":"IR"},{"SQLName":"Bangladesh Standard Time","TZName":"Asia\/Thimphu","TZTerritory":"BT"},{"SQLName":"Tokyo Standard Time","TZName":"Asia\/Tokyo","TZTerritory":"001"},{"SQLName":"Tokyo Standard Time","TZName":"Asia\/Tokyo","TZTerritory":"JP"},{"SQLName":"Tomsk Standard Time","TZName":"Asia\/Tomsk","TZTerritory":"001"},{"SQLName":"Tomsk Standard Time","TZName":"Asia\/Tomsk","TZTerritory":"RU"},{"SQLName":"Ulaanbaatar Standard Time","TZName":"Asia\/Ulaanbaatar","TZTerritory":"001"},{"SQLName":"Ulaanbaatar Standard Time","TZName":"Asia\/Ulaanbaatar Asia\/Choibalsan","TZTerritory":"MN"},{"SQLName":"Central Asia Standard Time","TZName":"Asia\/Urumqi","TZTerritory":"CN"},{"SQLName":"SE Asia Standard Time","TZName":"Asia\/Vientiane","TZTerritory":"LA"},{"SQLName":"Vladivostok Standard Time","TZName":"Asia\/Vladivostok","TZTerritory":"001"},{"SQLName":"Vladivostok Standard Time","TZName":"Asia\/Vladivostok Asia\/Ust-Nera","TZTerritory":"RU"},{"SQLName":"Yakutsk Standard Time","TZName":"Asia\/Yakutsk","TZTerritory":"001"},{"SQLName":"Yakutsk Standard Time","TZName":"Asia\/Yakutsk Asia\/Khandyga","TZTerritory":"RU"},{"SQLName":"Ekaterinburg Standard Time","TZName":"Asia\/Yekaterinburg","TZTerritory":"001"},{"SQLName":"Ekaterinburg Standard Time","TZName":"Asia\/Yekaterinburg","TZTerritory":"RU"},{"SQLName":"Caucasus Standard Time","TZName":"Asia\/Yerevan","TZTerritory":"001"},{"SQLName":"Caucasus Standard Time","TZName":"Asia\/Yerevan","TZTerritory":"AM"},{"SQLName":"Azores Standard Time","TZName":"Atlantic\/Azores","TZTerritory":"PT"},{"SQLName":"Azores Standard Time","TZName":"Atlantic\/Azores","TZTerritory":"001"},{"SQLName":"Atlantic Standard Time","TZName":"Atlantic\/Bermuda","TZTerritory":"BM"},{"SQLName":"GMT Standard Time","TZName":"Atlantic\/Canary","TZTerritory":"ES"}]'

/* To Get the full list refer windows-time-zone http link below */

SELECT j.TZName,j.TZTerritory, j.SQLName, tz.[current_utc_offset],tz.[is_currently_dst]
FROM (
    SELECT SQLName,TZName,TZTerritory FROM  OPENJSON(@TZ_Json)
    WITH (
        SQLName VARCHAR(200) '$.SQLName',
        TZName VARCHAR(200) '$.TZName',
        TZTerritory VARCHAR(200) '$.TZTerritory')
    )j  INNER JOIN sys.[time_zone_info]tz ON j.[SQLName]=tz.[name]

furthermore, refer to the below links:

List of tz database time zones

Windows Timezone