Mountain Time Zone is generically called Mountain Time (MT). Specifically, it is Mountain Standard Time (MST) when observing standard time, and Mountain Daylight Time (MDT) when observing daylight saving time. The term refers to how the Rocky Mountains, which range from northwestern Canada to the US state of New Mexico, are located almost entirely in the time zone. In Mexico, this time zone is known as the Zona Pacífico (Pacific Zone). In the US and Canada, the Mountain Time Zone is to the east of the Pacific Time Zone and to the west of the Central Time Zone. In some areas, starting in
Department of the Pacific (USMC) were transferred to Fleet Marine Force Pacific and Headquarters Marine Corps. 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