Colorado Time Now
Time Zone
Mountain Time
Quick Answer
Colorado uses Mountain Time — MST (UTC-7) or MDT (UTC-6) during DST.
All Colorado cities including Denver, Boulder, and Aspen share the same time.
What Time Zone Is Colorado In?
Colorado is in the Mountain Time Zone, using the IANA timezone America/Denver. During standard time (November–March), Colorado follows MST (Mountain Standard Time) at UTC-7. During daylight saving time (March–November), it shifts to MDT (Mountain Daylight Time) at UTC-6.
Colorado Time Differences
| Location | Standard | Daylight |
|---|---|---|
| New York (ET) | +2h | +2h |
| Chicago (CT) | +1h | +1h |
| Los Angeles (PT) | −1h | −1h |
| London (GMT/BST) | +7h | +7h |
| India (IST) | +12h 30m | +11h 30m |
Positive = ahead of Colorado. Differences stable for US zones since all switch DST together.
Colorado Time for Travel and Events
Colorado is a major destination for skiing (Aspen, Vail, Breckenridge), outdoor adventures, and tech conferences in Denver and Boulder. When planning flights, ski trips, or business meetings, always confirm whether Colorado is currently on MST or MDT, as the UTC offset changes seasonally.