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This is a list of time zone abbreviations. Time zones are often represented by alphabetic abbreviations such as ... Hawaii–Aleutian Standard Time: UTC−10:00: HKT ...
Hawaii began observing Hawaiian Standard Time on January 13, 1896, at noon. [3] [4] On May 19, 1947, the Hawaii Territorial Legislature approved a bill to change Hawaiian Standard Time to UTC−10:00, which would go into effect on June 8, 1947. [5] After the Uniform Time Act was passed in 1966, Hawaii was placed in the new Alaska–Hawaii Time ...
During daylight saving time (DST), the Alaskan portion observes Hawaii–Aleutian Daylight Time (HDT, UTC−09:00), while Hawaii stays on standard time. Hawaii has not observed daylight saving time since September 1945. [3] Until 1947, UTC−10:30 was used as standard time in Hawaii. On June 8 of that year, a new territorial law moved Hawaiian ...
Time zone abbreviations for both Standard Time and Daylight Saving Time are shown exactly as they appear in the database. See strftime and its "%Z" field. Some of zone records use 3 or 4 letter abbreviations that are tied to physical time zones, others use numeric UTC offsets.
The United States Standard Alaska Time was designated as UTC−10:00. [1] Some references prior to 1967 refer to this zone as Central Alaska Standard Time (CAST) [2] or as Alaska Standard Time (AKST). In 1966, the Uniform Time Act renamed the UTC−10:00 zone to Alaska-Hawaii Standard Time [3] (AHST [4]), effective April 1, 1967. [5]
Abbreviations Name Notes HST: Hawaii Standard Time UTC−10:00 : When dst is NOT set to "no", the *T, *ST and *DT variants of a particular time zone will produce the same output and can be used interchangeably.
Hawaii Standard Time UTC−10:00: The minute offset of standard time does not differ from the minute offset of daylight saving time (DST; if applicable). HAT or HAST: HADT: Hawaii-Aleutian Standard/Daylight Time UTC−10:00: UTC−09:00: AKT or AKST: AKDT: Alaska Standard/Daylight Time UTC−09:00: UTC−08:00: PT or PST: PDT: Pacific Standard ...
Hawaii Standard Time UTC−10:00: The minute of standard time does not differ from the minute of daylight saving time (DST; if applicable). HAT or HAST: HADT: Hawaii-Aleutian Standard/Daylight Time UTC−10:00: UTC−09:00: AKT or AKST: AKDT: Alaska Standard/Daylight Time UTC−09:00: UTC−08:00: PT or PST: PDT: Pacific Standard/Daylight Time ...