UTC−07:00 is an identifier for a time offset from UTC of −07:00. In North America, it is observed in the Mountain Time Zone during standard time, and in the Pacific Time Zone during the other eight months (see Daylight saving time). Some locations use it year-round. As standard time (Northern Hemisphere winter) Principal cities: Denver, Salt Lake City, Phoenix (year-round), Edmonton, Ciudad Juárez North America Canada (Mountain Time Zone) Alberta British Columbia The southeastern communities of Cranbrook, Golden, Invermere and Kimberley Northwest Territories Nunavut Kitikmeot Region Saskatchewan Lloydminster Mexico Baja California Sur, Chihuahua, Nayarit and Sinaloa states United States (Mountain Time Zone) Arizona – Navajo Nation only (most of Arizona uses MST year-round) Colorado Idaho South of Salmon River Kansas The western counties of Greeley, Hamilton, Sherman and Wallace Montana Nebraska The western counties of Cherry (western part), Hooker, Arthur, Keith, Perkins, Chase and Dundy, and all counties to the west of these Nevada West Wendover New Mexico North Dakota The Southwestern counties of Adams, Billings, Bowman, Dunn (southern part), Golden Valley, Grant, Hettinger, McKenzie (southern part), Sioux (west of ND route 31), Slope and Stark Oklahoma Kenton Oregon Malheur County (except a small strip in the south) South Dakota The western counties of Corson, Dewey, Stanley (western part), Jackson and Bennett, and all counties to the west of these Texas The western counties of Culberson (northwestern part), El Paso and Hudspeth Utah Wyoming As daylight saving time (Northern Hemisphere summer) Principal cities: Los Angeles, Vancouver, Tijuana North America Canada (Pacific Time Zone) British Columbia Except Northern Rockies Regional Municipality, Peace River Regional District, and the southeastern communities of Cranbrook, Golden and Invermere Mexico Baja California United States (Pacific Time Zone) California Idaho North of Salmon River Nevada (except West Wendover) Oregon All of the state except Malheur County (but including a small strip in the south of Malheur) Washington As standard time (year-round) Principal cities: Phoenix, Hermosillo North America Canada (Mountain Time Zone) British Columbia Northern Rockies Regional Municipality Peace River Regional District Yukon Mexico Sonora United States (Mountain Time Zone) Arizona, except the Arizona Navajo Nation, which observes DST References External links UTC offsets