Hawaii–Aleutian Time Zone Polynesia uses UTC−10 for its major cities. The Cook Islands also use the same time. 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. 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
Department of the Pacific (USMC) Department of the Pacific (USMC) Department of the Pacific (MarPac) was a United States Marine Corps ground training and administrative command established on November 15, 1920, which was responsible for the administration, training and equipment of the Marine Corps Units on the West Coast, 14th Naval District (Hawaii and outlying Pacific islands), 16th Naval District (the Philippines), 17th Naval District (Alaska and Aleutian Islands) and Marine Forces in Northern China (China Marines). The Department of the Pacific was activated as Marine Corps subheadquarters on November 15, 1920 at Marine Corps Base San Diego with former Commandant of the Marines, Major