Mountain Time Zone | |
---|---|
time zone | |
UTC offset | |
MST | UTC−07:00 |
MDT | UTC−06:00 |
Current time | |
04:16, May 7, 2021 MST[refresh] 05:16, May 7, 2021 MDT[refresh] | |
Observance of DST | |
DST is observed in some of this time zone. |
EST is -5 hours from GMT. The second poster is dead wrong, first person got it right. Central time would be -6 hours off of GMT. Mountain time -7. Pacific time -8. Afghanistan is +4½. Also this scale operates independently of Daylight Savings Times which each country or sometimes local areas can choose to. Greenwich Mean Time (GMT) is UTC+00:00, the mean solar time in Greenwich, London. Mountain Standard Time (MST) is UTC-7:00, and Mountain Daylight Time (MDT) is UTC-6:00, this time zone is called Mountain Time (MT) in the United States and Canada. Support daylight saving time (DST) or summer time.
The Mountain Time Zone of North America keeps time by subtracting seven hours from Coordinated Universal Time (UTC) when standard time (UTC−07:00) is in effect, and by subtracting six hours during daylight saving time (UTC−06:00). The clock time in this zone is based on the mean solar time at the 105th meridian west of the Greenwich Observatory. In the United States, the exact specification for the location of time zones and the dividing lines between zones is set forth in the Code of Federal Regulations at 49 CFR 71.[a]
In the United States and Canada, this 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 the Rocky Mountains, which range from British Columbia to New Mexico. In Mexico, this time zone is known as the tiempo de la montaña or 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 2007, the local time changes from MST to MDT at 2am MST to 3am MDT on the second Sunday in March and returns at 2am MDT to 1am MST on the first Sunday in November.
Sonora in Mexico and most of Arizona in the United States do not observe daylight saving time, and during the spring, summer, and autumn months they are on the same time as Pacific Daylight Time.[4] The Navajo Nation, most of which lies within Arizona but extends into Utah and New Mexico (which do observe DST), does observe DST, although the Hopi Reservation, as well as some Arizona state offices lying within the Navajo Nation, do not.
The largest city in the Mountain Time Zone is Phoenix, Arizona; the Phoenix metropolitan area is the largest metropolitan area in the zone.
Canada[edit]
Only one Canadian province is fully contained in the Mountain Time Zone:
One province and one territory are split between the Mountain Time Zone and the Pacific Time Zone:
- British Columbia – northeastern and southeastern regions
- Northwest Territories – Tungsten
One territory and one province are split between the Mountain Time Zone and the Central Time Zone
- Nunavut: Kitikmeot Region
- Saskatchewan: Lloydminster and vicinity
On September 24, 2020, Yukon switched to a new time zone called Yukon Standard Time, which is UTC−7 year round – the same as Mountain Standard Time. Therefore clocks in Yukon and Alberta are the same in the winter, and Alberta is one hour ahead in summer. Previously the territory had used the Pacific Time Zone with daylight saving time: UTC−8 in winter and UTC−7 in summer.[5]
Mexico[edit]
The following states have the same time as Mountain Time Zone:
- Nayarit: Except for the Bahía de Banderas municipality, which uses the Central Time Zone.
- Sonora – no daylight saving time, always on MST.
- Revillagigedo Islands (Colima): three of the four islands have the same time as Mountain Time Zone, Isla Socorro, San Benedicto Island and Roca Partida.
United States[edit]
What Is Gmt Time
Six states are fully contained in the Mountain Time Zone:
- Arizona (does not use daylight saving time except for Navajo Nation)
Three states are split between the Mountain Time Zone and the Pacific Time Zone. The following locations observe Mountain Time:
1pm Mountain Time To Gmt Time
- Idaho: Southern Idaho
- Oregon: the majority of Malheur County
- Nevada: West Wendover; other small towns in Elko County observe it unofficially.
Five states are split between the Mountain Time Zone and the Central Time Zone. The following locations observe Mountain Time:
- Kansas: Sherman, Wallace, Greeley and Hamilton counties
- Nebraska: western third
- North Dakota: the SW corner counties (Adams, Billings, Bowman, Golden Valley, Grant, Hettinger, Slope, Stark) observe MST. The counties of McKenzie, Dunn, and Sioux are split.
- South Dakota: western half
- Texas: El Paso and Hudspeth counties
See also[edit]
Notes[edit]
- ^The specification for the Mountain Time Zone in the United States is set forth at 49 CFR 71.8.[1] The boundary between Central and Mountain time zones is set forth at 49 CFR 71.7,[2] and the boundary between Mountain and Pacific time zones is set forth at 49 CFR 71.9.[3]
References[edit]
- ^'49 CFR 71.8 Mountain zone'. Code of Federal Regulations. Retrieved October 7, 2011.
- ^'49 CFR 71.7 Boundary line between central and mountain zones'. Code of Federal Regulations. Retrieved October 7, 2011.
- ^'49 CFR 71.9 Boundary line between mountain and Pacific zones'. Code of Federal Regulations. Retrieved October 7, 2011.
- ^Robbins, Ted (March 11, 2007). 'Arizona Says No to Daylight-Saving Time'. Weekend Edition Sunday. National Public Radio. Retrieved June 18, 2012.
- ^http://www.gov.yk.ca/legislation/regs/oic2020_125.pdf
Time zones in North America | ||
---|---|---|
Time zone | Hours from UTC: Standard time | Hours from UTC: Daylight saving time |
Hawaii–Aleutian (in Hawaii) | −10 | −10 |
Hawaii–Aleutian (parts of Alaska) | −10 | −9 |
Alaska | −9 | −8 |
Pacific (parts of Alaska) | −8 | −8 |
Pacific (other states/provinces) | −8 | −7 |
Mountain (Arizona, Sonora, Yukon, and Northeastern British Columbia only) | −7 | −7 |
Mountain (other states/provinces) | −7 | −6 |
Saskatchewan | −6 | −6 |
Central (other states/provinces) | −6 | −5 |
Eastern (parts of Nunavut, Ontario, and the Caribbean) | −5 | −5 |
Eastern (other states/provinces) | −5 | −4 |
Atlantic (Natashquan River) | −4 | −4 |
Atlantic (other states/provinces) | −4 | −3 |
Newfoundland | −3:30 | −2:30 |
Saint Pierre and Miquelon and most of Greenland | −3 | −2 |
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