Definition of Hawaii-Aleutian Standard Time in English:

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Hawaii-Aleutian Standard Time

(abbreviation HST)


1The standard time in a zone including the Hawaiian Islands and the western Aleutian Islands, specifically.
Example sentences
  • The westernmost Aleutian Islands are on the Hawaii-Aleutian Standard Time, two hours behind Pacific Standard Time.
  • Time in the United States is currently split into 9 time zones; Atlantic Standard Time, Eastern Standard Time, Central Standard Time, Mountain Standard Time, Pacific Standard Time, Alaska Standard Time, Hawaii-Aleutian Standard Time, Samoa Standard Time, and Chamorro Standard Time.
  • Seattle time is 2 hours ahead of Hawaii time (Hawaii-Aleutian Standard Time), 1 hour ahead of Alaska time (Alaska Standard Time), and 3 hours behind New York (Atlantic Standard Time).
1.1Standard time based on the mean solar time at longitude 150° W., ten hours behind GMT. Also called Hawaiian Standard Time.
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