Convert UTC to Mountain Time (MST). MST is 7 hours behind UTC in winter, and MDT is 6 hours behind UTC in summer. Updated for the 2026 time zone changes and current daylight saving rules.
Need a city instead? Use the time zone converter.
| UTC | Nov–Mar (UTC → MST) | Mar–Nov (UTC → MDT) |
|---|---|---|
| 12:00 AM | 5:00 PM (prev. day) | 6:00 PM (prev. day) |
| 1:00 AM | 6:00 PM (prev. day) | 7:00 PM (prev. day) |
| 2:00 AM | 7:00 PM (prev. day) | 8:00 PM (prev. day) |
| 3:00 AM | 8:00 PM (prev. day) | 9:00 PM (prev. day) |
| 4:00 AM | 9:00 PM (prev. day) | 10:00 PM (prev. day) |
| 5:00 AM | 10:00 PM (prev. day) | 11:00 PM (prev. day) |
| 6:00 AM | 11:00 PM (prev. day) | 12:00 AM |
| 7:00 AM | 12:00 AM | 1:00 AM |
| 8:00 AM | 1:00 AM | 2:00 AM |
| 9:00 AM | 2:00 AM | 3:00 AM |
| 10:00 AM | 3:00 AM | 4:00 AM |
| 11:00 AM | 4:00 AM | 5:00 AM |
| 12:00 PM | 5:00 AM | 6:00 AM |
| 1:00 PM | 6:00 AM | 7:00 AM |
| 2:00 PM | 7:00 AM | 8:00 AM |
| 3:00 PM | 8:00 AM | 9:00 AM |
| 4:00 PM | 9:00 AM | 10:00 AM |
| 5:00 PM | 10:00 AM | 11:00 AM |
| 6:00 PM | 11:00 AM | 12:00 PM |
| 7:00 PM | 12:00 PM | 1:00 PM |
| 8:00 PM | 1:00 PM | 2:00 PM |
| 9:00 PM | 2:00 PM | 3:00 PM |
| 10:00 PM | 3:00 PM | 4:00 PM |
| 11:00 PM | 4:00 PM | 5:00 PM |
UTC never changes, so the gap with North American time zones shifts by an hour when they change their clocks.
This uses Mountain Time as in Denver, which changes clocks. Arizona stays on MST (UTC−7) all year. Alberta no longer uses MST at all: since Nov 1, 2026 it stays at UTC−6, so in winter Calgary is an hour ahead of Denver. Yukon, Creston and BC’s Peace River region are at UTC−7 all year.
MST is 7 hours behind UTC in winter, and MDT is 6 hours behind UTC in summer.
9:00 AM UTC is 2:00 AM MST in winter, and 9:00 AM UTC is 3:00 AM MDT in summer.
12:00 PM UTC is 5:00 AM MST in winter, and 12:00 PM UTC is 6:00 AM MDT in summer.
5:00 PM UTC is 10:00 AM MST in winter, and 5:00 PM UTC is 11:00 AM MDT in summer.
MST is often used loosely for Mountain Time all year. Strictly, MST is the winter time and MDT is the summer time, from the second Sunday in March to the first Sunday in November. The converter above shows the right one for the date you pick.
UTC never changes, so the gap with North American time zones shifts by an hour when they change their clocks.
This uses Mountain Time as in Denver, which changes clocks. Arizona stays on MST (UTC−7) all year. Alberta no longer uses MST at all: since Nov 1, 2026 it stays at UTC−6, so in winter Calgary is an hour ahead of Denver. Yukon, Creston and BC’s Peace River region are at UTC−7 all year.