timezone_to_country

Extension method for translation Time Zone Id to ISO 3166-1 alpha-2 code (e.g. 'Asia/Seoul' to 'KR')

Usage

TimeZoneToCountry.getCountryCode('Asia/Seoul')          // 'KR'
TimeZoneToCountry.getCountryCode('America/Los_Angeles') // 'US'
TimeZoneToCountry.getCountryCode('Europe/London')       // 'GB'

String code = await TimeZoneToCountry.getLocalCountryCode();
print(code);  // 'KR'

Source of Time Zone

https://github.com/eggert/tz/blob/master/zone.tab

Unsupported Time Zones

America/Godthab
America/Montreal
America/Santa_Isabel
Asia/Rangoon
Australia/Currie
Canada/Atlantic
Canada/Central
Canada/Eastern
Canada/Mountain
Canada/Newfoundland
Canada/Pacific
Pacific/Johnston
US/Alaska
US/Arizona
US/Central
US/Eastern
US/Hawaii
US/Mountain
US/Pacific