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About HST
HST (Hawaii Standard Time) is the standard time zone used in Hawaii, United States. The time zone offset of HST is UTC-10:00, which means it is 10 hours behind Coordinated Universal Time (UTC).
Hawaii Standard Time does not observe daylight saving time, so the time remains the same throughout the year. This makes Hawaii one of the few U.S. states that does not change its clocks seasonally.
HST is used across the Hawaiian Islands, including major cities and communities such as Honolulu, Hilo, Kailua, Pearl City, and Kaneohe. It serves as the official time standard for the state of Hawaii year-round.