MST – Mountain Standard Time
Time zone offset: UTC - 7 hours
MST is 7 hours behind of Coordinated Universal Time (UTC)
Note that most places observe daylight saving time/summer time during summer, and are therefore using MDT instead in the summer. See below for details.
Time zone abbreviations: MST, HNR
Full name is Mountain Standard Time
HNR – Heure Normale des Rocheuses (French)
Email time zone indicator: -0700
An email sent from someone in the MST time zone will have the time zone listed as "-0700" in the headers of the email. (However, "-0700" does not have to be in MST, as other time zones could have the same UTC offset).
Where and when is MST observed?
MST is used during winter in these US states (MDT during summer)
* Arizona
* Colorado
* Idaho
* Kansas
* Montana
* Nebraska
* New Mexico
* North Dakota
* Oregon
* South Dakota
* Texas
* Utah
* Wyoming
MST is used during winter in these Canadian provinces (MDT during summer)
* Alberta
* British Columbia
* Northwest Territories
* Saskatchewan
MST is used during winter in these Mexican states (MDT during summer)
* Baja California Sur
* Chihuahua
* Nayarit
* Sinaloa
MST is used all year
* Dawson Creek area, British Columbia
* Most of Arizona
* Sonora
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