Convert MST Timezone
Convert Mountain Standard Time (MST) to and from any other time zone.
Convert MST to any other time zone and back. MST is Mountain Standard Time, which runs at UTC-07:00.
The clock below starts on MST using Phoenix, United States, so you can read straight across to the cities you care about. Add or remove rows to build the comparison you need, and set a date and time to check a moment in the past or future.
- General Working Hours
- General Non-Working Hours
- Sleeping Hours & Public Holidays
- * Indicates Daylight Saving Time is in effect.
For more converters, browse our full list of time zone converters.
MST covers 24 IANA time zones, including America/Boise, America/Cambridge Bay, America/Ciudad Juarez, America/Creston, America/Dawson, America/Dawson Creek and 18 more. Daylight saving is applied automatically for whichever zone a city actually uses, so the result stays correct across the changeover.
The standard time for the Mountain Time Zone in North America. Some areas, like Arizona (except Navajo Nation), observe MST year-round, while others switch to Mountain Daylight Time (MDT) during summer.
See the MST time zone overview for the full picture, or the full time zone converter to compare any cities you like.