UNIX Timestamp to US Mountain

Convert UNIX timestamps, epoch times, and ISO dates to US Mountain (MST/MDT). Current offset: UTC-7 (MST) / UTC-6 (MDT). Mountain Time observes DST except in Arizona, which stays on MST year-round.

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About US Mountain

IANA Name
America/Denver
Abbreviation
MST/MDT
UTC Offset
UTC-7 (winter) / UTC-6 (summer)
Region
North America
Major Cities
Denver, Phoenix (no DST), Salt Lake City, Albuquerque
Daylight Saving
Yes

Frequently asked questions

Does Arizona observe Mountain Time DST?

No. Most of Arizona stays on Mountain Standard Time (UTC-7) year-round. The Navajo Nation, however, does observe DST.

What UTC offset is Mountain Time?

Mountain Standard Time is UTC-7. Mountain Daylight Time is UTC-6. Denver is two hours behind New York.

Which states use Mountain Time?

Colorado, Wyoming, Utah, New Mexico, Montana, and parts of Idaho, Oregon, and the Dakotas. Arizona uses MST without DST.

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