Hawaii Standard Time

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Definition

Noun: - Hawaii Standard Time (HST): A standard time zone that is ten hours behind Coordinated Universal Time (UTC-10:00). It is the official time used in the state of Hawaii and the western Aleutian Islands of Alaska.

Usage
  • Hawaii Standard Time is used to specify the local time in Hawaii.
  • It is often abbreviated as HST.
  • When scheduling calls or events with people in Hawaii, you must account for the Hawaii Standard Time difference.
Examples
Advanced Usage
  • "Observing HST": This phrase indicates that a location is currently using Hawaii Standard Time.
    • The island of Oahu is observing HST year-round.
  • Time Zone Conversion: HST is used as a reference point for calculating time differences.
    • When it is 2:00 PM in California (Pacific Time), it is 12:00 PM Hawaii Standard Time.
Variants and Related Words
  • HST: The common abbreviation for Hawaii Standard Time.
  • Hawaii-Aleutian Standard Time (HAST): A broader term that includes the time zone used in Hawaii and the Aleutian Islands of Alaska. Hawaii Standard Time is effectively the same as Hawaii-Aleutian Standard Time when Hawaii is not on daylight saving time.
  • UTC-10: The designation for the time offset from Coordinated Universal Time.
Synonyms
  • Hawaii Time: A more casual term for Hawaii Standard Time.
  • UTC-10: The technical designation for the time offset.
Notes
  • Hawaii does not observe Daylight Saving Time. Therefore, Hawaii Standard Time (HST) is in effect throughout the entire year.
  • The time in the western Aleutian Islands (e.g., Adak Island) may be referred to as Hawaii-Aleutian Standard Time and may observe Daylight Saving Time, unlike Hawaii.
Noun
  1. standard time in the 10th time zone west of Greenwich, reckoned at the 150th meridian west; used in Hawaii and the western Aleutian Islands

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