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In the United States, the following states are part of the Mountain Standard Time Zone:
Additionally, the southwestern quadrant of North Dakota, the western half of South Dakota, the western third of Nebraska, the two most western counties in Texas, and the bulk of Idaho are part of the Mountain Standard Time Zone. Four counties in Kansas are part of the Mountain Standard Time Zone. Also, one county in Oregon is divided between the Mountain and Pacific Time Zones; most of the county in question ( Malheur County) observes Mountain Time because of its economic ties to southwestern Idaho. Likewise, the town of West Wendover, Nevada observes Mountain Time because of its close economic ties with central Utah.
ArizonaArizona was the 48th state admitted to the United States and is part of the Southwest United States. It is one of the Four Corners states, south and east of the Colorado River, bordering New Mexico, Utah, Nevada, California and Mexico. Its major cities ar is part of the Mountain Standard Time Zone, but does not observe Daylight Savings Time, a period of time between April and October in which the Mountain Standard Time Zone keeps time by subtracting six hours from UTC. However, the Navajo NationNavajo Nation is the name of a sovereign Native American nation established by the Dine. The Navajo Nation Reservation, which includes about 27,000 acres (110 kmē) of land also considered to be part of three states, is the largest land area assigned prima, the bulk of whose area is within Arizona, observes Daylight Savings Time throughout its territory.Other parts of the world that keep time by subtracting seven hours from UTC include the CanadianCanada historically the Dominion of Canada is the second-largest, and northernmost, country in the world. It is a decentralized federation of 10 provinces and 3 territories, governed as a constitutional monarchy, and formed in 1867 through an act of Confe provinces of AlbertaAlberta is one of Canada's provinces. Its capital is the city of Edmonton. Other cities and towns include Banff, Calgary, Red Deer, Lethbridge and Medicine Hat. See also: List of communities in Alberta. As of 2004, the population of the province was 3,183, Northwest TerritoriesA former territory in the United States is called Northwest Territory . Northwest Territories Territoires du Nord-Ouest ( In Detail) ( In Detail) Motto: None Capital Yellowknife Official Languages Chipewyan, Cree, Dogrib or Tli Cho, English, French, Gwich, and the part of SaskatchewanSaskatchewan ( In Detail) ( In Detail) Motto: Multis E Gentibus Vires (From many peoples, strength CapitalLargest city Regina Saskatoon Area Total % fresh water 7th largest(5th lgst prov. 651 036 kmē 9. 1% Population Total (2001) Density Ranked 6th 1 015 immediately surrounding Lloydminster, as well as the Mexican states of Baja California Sur, Chihuahua, Nayarit, and Sinaloa, along with Sonora, which does not practice DST.