Mountain Time Zone (MT)
Mountain Time is on MDT (UTC−6) now. Clocks go back 1 hour to UTC−7 on Sun, 1 Nov 2026.
Daylight time in effect · MDT
Reference city: Denver
Sunday, 18 October 2026
Mountain Daylight Time · MDT · UTC−06:00
Your time-
UTC3:32 PM+6 h
Pacific8:32 AM−1 h
Central10:32 AM+1 h
Eastern11:32 AM+2 h
London4:32 PM+7 h
India9:02 PM+11.5 h
Standard and daylight time
| Period | Offset | Starts | Ends |
|---|---|---|---|
| MDT · Mountain DaylightNow | UTC−06:00 | Sun, 8 Mar 2026 | Sun, 1 Nov 2026 |
| MST · Mountain Standard | UTC−07:00 | Sun, 1 Nov 2026 | Sun, 14 Mar 2027 |
| MDT · Mountain Daylight | UTC−06:00 | Sun, 14 Mar 2027 | Sun, 7 Nov 2027 |
| MST · Mountain Standard | UTC−07:00 | Sun, 7 Nov 2027 | Sun, 12 Mar 2028 |
Changes happen at 2:00 AM local time. In spring clocks skip from 2:00 to 3:00 AM; in autumn the hour from 1:00 to 2:00 AM happens twice.
Places on Mountain Time
See every state's zone on the United States page.
Convert Mountain Time
Arizona and Mountain Time
Most of Arizona stays on Mountain Standard Time (UTC−07:00) all year. In summer that puts Phoenix on the same time as Los Angeles, and in winter on the same time as Denver. The Navajo Nation in the northeast does change its clocks.
Questions
Is it MST or MDT right now?
It is MDT, Mountain Daylight Time (UTC−6). That changes on Sun, 1 Nov 2026, 2:00 AM.
What is the difference between MT, MST and MDT?
MT (Mountain Time) is the zone name that is always right. MST is the standard time used in winter and MDT the daylight time used from March to November. In meeting invites, writing MT avoids mistakes.
Which places use Mountain Time?
Places on this page include Utah, Arizona, Montana, Idaho, Wyoming, Colorado, El Paso, Phoenix.