The term Mountain Time (MT) is often used to denote the local time in areas observing either Mountain Standard Time (MST) or Mountain Daylight Time (MDT).
In other words, in locations observing Daylight Saving Time during part of the year, Mountain Time is not static but switches between MST and MDT.
Mountain Time UTC Offset
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Mountain Standard Time is 7 hours behind Coordinated Universal Time.
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Mountain Daylight Time is 6 hours behind Coordinated Universal Time.
What Is Mountain Time?
Mountain Time (MT) is the second westernmost time zone in the United States and Canada. It is also used in Mexico.
The MT time zone is the least populated time zone in the US. It spans from northern Canada to Mexico near the equator.
In North America, Mountain Time shares a border with Central Time (CT) in the east and with Pacific Time (PT) in the west.
What Does MT Time Zone Mean?
Unlike other time zone denominations, which have a fixed time, Mountain Time refers to a geographical area where the time changes twice yearly as Daylight Saving Time (DST) begins and ends. Mountain Standard Time is UTC-7, while Mountain Daylight Time is UTC-6.
Most North American time zones also have generic terms, including Pacific Time (PT), Central Time (CT), Eastern Time (ET), and Atlantic Time (AT).
Converting Mountain Time to Other US Time Zones
- Mountain Time (MT) is 2 hours behind Eastern Time (ET).
To convert MT to ET, you have to add two hours. - Mountain Time (MT) is 1 hour behind Central Time (CT).
To convert MT to CT, you have to add one hour. - Mountain Time (MT) is 1 hour ahead of Pacific Time (PT).
To convert MT to PT, you have to subtract one hour.
Where and When is MT Observed?
North America
US states using MST in the winter and MDT in the summer
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Idaho - most of the state except western countiesBenewah, Bonner, Boundary, Clearwater, Kootenai, Latah, Lewis, Nez Perce, Shoshone and north part of Idaho
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Kansas - some western counties onlyGreeley, Hamilton, Sherman and Wallace
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Nebraska - western countiesArthur, Banner, Box Butte, Chase, Cheyenne, Dawes, Deuel, Dundy, Garden, Grant, Hooker, Keith, Kimball, Morrill, Perkins, Scotts Bluff, Sheridan, and Sioux and the western part of Cherry
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North Dakota - South-Western partscounties of Adams, Billings, Bowman, Golden Valley, Grant, Hettinger, Mercer, Slope and Stark, and southern parts of Dunn and McKenzie, most of Morton and Sioux counties
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South Dakota - western countiesBennett, Butte, Corson, Custer, Dewey, Fall River, Haakon, Harding, Jackson, Lawrence, Meade, Pennington, Perkins, Shannon, and Ziebach, and the western parts of Stanley
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Texas - a few counties in westEl Paso and Hudspeth and part of Culberson
Canadian provinces/territories using MST in the winter and MDT in the summer
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British Columbia - a few eastern communitiesCranbrook, Golden, Invermere
Canadian provinces/territories using MST all year round
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Some locations in British ColumbiaCreston, the Northern Rockies Regional Municipality, and most of Peace River Regional District (except Fort Ware)