Hawaii?Aleutian Time Zone

Hawaii?Aleutian Time Zone
Hawaii?Aleutian Time Zone
Time zone
UTC offset
HST	UTC?10:00
HDT	UTC?09:00
Current time
	10:21, 15 May 2024 HST [ refresh ] ; 11:21, 15 May 2024 HDT [ refresh ]
Observance of DST
	DST is observed in some of this time zone.

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 portion of Alaska 's Aleutian Islands west of 169° 30 ′ W longitude.

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 Standard Time 30 minutes ahead. ^[4]

French Polynesia uses UTC?10:00 for its major cities. ^[5] The Cook Islands also use the same time. ^[6] These areas do not use DST. "Hawaii?Aleutian Time Zone" is a U.S. term and for that reason the Polynesian areas are not considered to be a part of the Hawaii?Aleutian Time Zone.

The largest city and metropolitan area in the Hawaii?Aleutian Time Zone are Honolulu and its metropolitan area, respectively.

Major metropolitan areas [ edit ]

Other significant places [ edit ]

References [ edit ]

^ "U.S. Government Printing Office Style Manual: An official guide to the form and style of Federal Government printing" (PDF) . U.S. Government Printing Office. 2008. p. 234 . Retrieved July 24, 2017 . Time zones §9.47. The following forms are to be used when abbreviating names of time zones: ... HDT?Hawaii-Aleutian daylight time (not observed in HI) ... HST?Hawaii-Aleutian standard time
^ "What are the time zones in the United States?" . NIST . National Institute of Standards and Technology, U.S. Department of Commerce. 2016 . Retrieved July 24, 2017 . Hawaii-Aleutian (HT); HST -10; HDT -9; DST observed in Aleutian Islands, but not Hawaii
^ "Daylight Saving Time 2021 in Hawaii, United States" . www.timeanddate.com . Retrieved March 22, 2021 .
^ " 'Hawaiian Standard Time': It Will Now Be 30 Minutes Earlier" . Honolulu Star-Bulletin . Honolulu, Hawaii. June 3, 1947. p. 6 . Retrieved March 13, 2024 – via Newspapers.com.
^ "Current Local Time in Papeete, Tahiti, French Polynesia" . www.timeanddate.com . Retrieved March 22, 2021 .
^ "Time Zones in Cook Islands" . www.timeanddate.com . Retrieved March 22, 2021 .

External links [ edit ]

This Hawai?i -related article is a stub . You can help Wikipedia by expanding it .

[1] "U.S. Government Printing Office Style Manual: An official guide to the form and style of Federal Government printing" (PDF) . U.S. Government Printing Office. 2008. p. 234 . Retrieved July 24, 2017 . Time zones §9.47. The following forms are to be used when abbreviating names of time zones: ... HDT?Hawaii-Aleutian daylight time (not observed in HI) ... HST?Hawaii-Aleutian standard time

[2] "What are the time zones in the United States?" . NIST . National Institute of Standards and Technology, U.S. Department of Commerce. 2016 . Retrieved July 24, 2017 . Hawaii-Aleutian (HT); HST -10; HDT -9; DST observed in Aleutian Islands, but not Hawaii

[3] "Daylight Saving Time 2021 in Hawaii, United States" . www.timeanddate.com . Retrieved March 22, 2021 .

[Hono470603-4] " 'Hawaiian Standard Time': It Will Now Be 30 Minutes Earlier" . Honolulu Star-Bulletin . Honolulu, Hawaii. June 3, 1947. p. 6 . Retrieved March 13, 2024 – via Newspapers.com.

[5] "Current Local Time in Papeete, Tahiti, French Polynesia" . www.timeanddate.com . Retrieved March 22, 2021 .

[6] "Time Zones in Cook Islands" . www.timeanddate.com . Retrieved March 22, 2021 .

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Major metropolitan areas [ edit ]

Other significant places [ edit ]

See also [ edit ]

References [ edit ]

External links [ edit ]