Current time in Colorado
Mountain Time UTC−7 · one zone statewide
Colorado's time zone
Colorado lies entirely within Mountain Time: MST (UTC−7) in winter and MDT (UTC−6) from mid-March to early November. There is no split anywhere in the state — Grand Junction, Denver, and the eastern plains all agree.
Denver is the zone's reference city; the IANA identifier America/Denver covers Mountain Time for most of the country. Heading east, the zone reaches slightly past the state border — Kansas's four westernmost border counties also keep Mountain Time, so on I-70 the clock doesn't change until beyond Goodland, Kansas.
| Standard time | MST, UTC−7 |
|---|---|
| Daylight time | MDT, UTC−6 |
| IANA zone | America/Denver |
| vs New York | +2 h |
| vs Chicago | +1 h |
| vs Los Angeles | −1 h |
Time in Colorado cities
Live clocks, sunrise, sunset, and DST details on each city page.
Frequently asked questions
Is all of Colorado in the same time zone?
Yes — the whole state is on Mountain Time, with no internal boundary.
What's the time difference between Colorado and New York?
Colorado is 2 hours behind New York all year. Noon in Denver is 2:00 PM in New York. Full chart: MST to EST.
Does Colorado observe daylight saving time?
Yes — forward the second Sunday of March, back the first Sunday of November, at 2:00 AM local. Exact dates: DST page.