MST(Mountain Standard Time)
Mountain Standard Time (MST) is the standard time of the North American mountain interior, seven hours behind UTC.
- UTC offset
- UTC−07:00
- Abbreviation
- MST
- Full name
- Mountain Standard Time
- Military letter
- Tango (T)
- Regions
- Mountain United States, Alberta, North-western Mexico
- IANA zones
- America/Denver, America/Phoenix, America/Edmonton
- Converter model
- Fixed offset.
What MST means
MST is the standard time of Colorado, Utah, Arizona, New Mexico, Montana and Wyoming, of Alberta in Canada, and of several north-western Mexican states.
- Most of Arizona keeps this offset all year, which is why Arizona and California sometimes agree and sometimes differ by an hour.
Cities on this offset
These cities keep UTC−07:00 as their standard offset:
- Denver
- Phoenix
- Salt Lake City
- Calgary
- Edmonton
History
Mountain time entered the North American standard-time system in 1883, dividing the interior west from the Pacific coast and the Great Plains.