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"HAST" redirects here. For Highly Accelerated Stress Testing, see Stress testing.
HST is UTC-10
The Hawaii-Aleutian Time Zone observes Hawaii-Aleutian Standard Time (HST), by subtracting ten hours from Coordinated Universal Time (UTC-10). The clock time in this zone is based on the mean solar time of the 150th degree meridian west of the Greenwich Observatory.
The zone also includes Alaska\'s Aleutian Islands west of 169° 30′ west, along with Hawaii. The portion in the Aleutian islands observes DST while Hawaii does not.
Hawaii used a standard time of GMT-10:30 from 1900 until 1947, when clocks were changed to the present -10:00 zone. [1]
| Time zones in North America | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Time Zone | UTC-10 | UTC-9 | UTC-8 | UTC-7 | UTC-6 | UTC-5 | UTC-4 | UTC-3:30 | UTC-3 | UTC-2:30 | UTC-2 |
| Name | Hawaii-Aleutian Standard | Alaska Standard | Pacific Standard | Mountain Standard | Central Standard | Eastern Standard | Atlantic Standard | Newfoundland Standard | Saint Pierre and Miquelon Standard | Newfoundland Daylight | Saint Pierre and Miquelon Daylight |
| Hawaii-Aleutian Daylight | Alaska Daylight | Pacific Daylight | Mountain Daylight | Central Daylight | Eastern Daylight | Atlantic Daylight | |||||
This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia