North American time zones:

MST – Mountain Standard Time


Only some locations are currently on MST, because most places in this time zone are currently on Daylight Saving Time.

Locations that are on MST part of the year are currently on MDT (Mountain Daylight Time).

Current time in Phoenix

Monday, October 20, 2014 at 9:01:04 PM MST

Phoenix is on MST all of year 2014

Locations going to MST later

Current time in Edmonton: Monday, October 20, 2014 at 10:01:04 PM MDT
Edmonton will stay on MDT until Sunday, November 2, 2014 going to MST

Find local time and time zone for a location

We recommend looking up by location name, not time zone name.

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).

For actual dates DST might be observed, look at the examples below

Where and when is MST observed?

US states using MST in the winter and MDT during the summer

Canadian provinces using MST in the winter and MDT during the summer

Mexican states using MST in the winter and MDT during the summer

MST is used all year

Time zone maps are under development and will be available later

Example locations in MST

Other time zones in North America

Go directly through the links below, or see the North America time zone list

Time zones in other regions

Related links