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The Hawaii–Aleutian Time Zone observes Hawaii–Aleutian Standard Time (HST) [1][2] by subtracting ten hours from Coordinated Universal Time (UTC−10:00). The clock time in this zone is based on the mean solar time of the 150th meridian west of the Greenwich Observatory. The zone takes its name from the two areas it includes: Hawaii and the ...
History. Before 1896, Hawaii did not use a standard time zone. On January 8, 1896, the minister of the interior of the Provisional Government of Hawaii created a standard time zone, Hawaiian Standard Time, which was set at UTC−10:30. Hawaii began observing Hawaiian Standard Time on January 13, 1896, at noon. [3][4] On May 19, 1947, the Hawaii ...
Contents. List of tz database time zones. The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [ 1 ] This is a list of time zones from release 2024b of the tz database. [ 2 ]
Advancing the clock to UTC−09:00 (DST) in Hawaii would make sunrise times close to 7:00 a.m. even in June, [65] because most of the inhabited islands are located close to the west end of the Hawaii–Aleutian Time Zone and Oahu, Kauai, and Niihau are located more than 7 degrees west of the Hawaii–Aleutian Time Zone's meridian and should ...
Time zones of the world. A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
In the United States, time is divided into nine standard time zones covering the states, territories and other US possessions, with most of the country observing daylight saving time (DST) for approximately the spring, summer, and fall months. The time zone boundaries and DST observance are regulated by the Department of Transportation, but no ...
The Pacific Time Zone (PT) is a time zone encompassing parts of western Canada, the western United States, and western Mexico. Places in this zone observe standard time by subtracting eight hours from Coordinated Universal Time (UTC−08:00). During daylight saving time, a time offset of UTC−07:00 is used.
This is a list of time zone abbreviations. ... Hawaii–Aleutian Standard Time: UTC−10: HKT: Hong Kong Time: UTC+08: HMT: Heard and McDonald Islands Time UTC+05: HOVST: