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 (French: ) 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, Ciudad Juárez
North America Canada (Mountain Time Zone) Nunavut Kitikmeot Region Mexico (near US border with New Mexico & western Texas) Chihuahua Municipalities of Janos, Ascensión, Juárez, Práxedis G. Guerrero and Guadalupe United States (Mountain Time Zone) Arizona – Navajo Nation only (most of Arizona uses MST year-round) Colorado Idaho South of Salmon River Kansas Western counties of Greeley, Hamilton, Sherman and Wallace Montana Nebraska 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 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 Western counties of Corson, Dewey, Stanley (western part), Jackson and Bennett, and all counties to the west of these Texas Western counties of Culberson (northwestern part), El Paso and Hudspeth Utah Wyoming
As daylight saving time (Northern Hemisphere summer) Principal cities: Los Angeles, Tijuana
North America 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, Vancouver
North America Canada (Yukon Time) Yukon Canada (Pacific Time) British Columbia (except the Regional District of East Kootenay, Golden, and Columbia-Shuswap Regional District Area A) Mexico () Baja California Sur Nayarit (except the municipality of Bahía de Banderas) Sinaloa Sonora United States (Mountain Time Zone) Arizona (except the Navajo Nation)
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