Current Mountain (MST/MDT) Time Now in USA and Canada

Mountain Standard and Daylight Time

Mountain Time observes standard time at seven hours behind UTC (UTC-7), shifting to six hours behind (UTC-6) during daylight saving time. Standard time in the zone is based on the mean solar time of the 105th meridian west of Greenwich.

Mountain Time (MT)

In the United States and Canada, the zone is generically called Mountain Time (MT) — specifically Mountain Standard Time (MST) during winter, and Mountain Daylight Time (MDT) during daylight saving time. The name comes from the Rocky Mountains, which run from northwestern Canada down to New Mexico and lie almost entirely within this time zone. Since 2007, the shift from MST to MDT takes place at 2:00 a.m. on the second Sunday of March, and the shift back to MST takes place at 2:00 a.m. on the first Sunday of November.

Arizona

Most of Arizona does not observe daylight saving time, so for much of the year it keeps the same clock time as Pacific Daylight Time next door, even though it's still Mountain Standard Time by name. The Navajo Nation, which spans much of northeastern Arizona, does observe daylight saving time — while the Hopi Nation, an enclave entirely within Navajo land, does not.