Hawaii–Aleutian Time Zone Hawaii–Aleutian Time Zone The Hawaii–Aleutian Time Zone observes Hawaii–Aleutian Standard Time (HST), by subtracting ten hours from Coordinated Universal Time (). 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, the Alaskan portion observes Hawaii–Aleutian Daylight Time (HDT, ), while Hawaii stays on standard time. From 1900 until 1947, GMT−10:30 was used as standard time in Hawaii. French
Aleutian Islands Campaign Aleutian Islands Campaign The Aleutian Islands Campaign was a military campaign conducted by the United States and Japan in the Aleutian Islands, part of the Alaska Territory, in the American theater and the Pacific theater of World War II starting on 3 June 1942. A small Japanese force occupied the islands of Attu and Kiska, where the remoteness of the islands and the challenges of weather and terrain delayed a larger U.S.-Canadian force sent to eject them for nearly a year. The islands' strategic value was their ability to control Pacific transportation routes, which is why U.S. General Billy Mitchell