MDT — Mountain Daylight Time
Mountain Daylight Time UTC−6
UTC−06:00MDT stands for Mountain Daylight Time, UTC−6, 6 hours behind UTC. It is used in summer in North America, from the second Sunday in March at 02:00 to the first Sunday in November at 02:00; the rest of the year they use MST (UTC−7).
From November 2026 Alberta and the Northwest Territories stay on UTC−6 all year.
Countries and territories: United States and Canada.
Zones: America/Denver, America/Edmonton, America/Boise.
MDT compared with other cities
How far a clock on MDT (UTC−6) is ahead of or behind eight major cities over the next 12 months (ranges come from the cities’ own daylight saving time). Every country and territory on this offset is listed under UTC−6.
| City | MDT is |
|---|---|
| New York | 1 h to 2 h behind |
| Los Angeles | 1 h to 2 h ahead |
| London | 6 h to 7 h behind |
| Paris | 7 h to 8 h behind |
| Dubai | 10 h behind all year |
| Delhi | 11 h 30 min behind all year |
| Tokyo | 15 h behind all year |
| Sydney | 16 h to 17 h behind |