Current Local Time in Boulder
Boulder, United States (MDT)
Saturday, May 9, 2026
Boulder follows Mountain Time (MT). The city observes Daylight Saving Time, switching between MST (UTC−7) and MDT (UTC−6).
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Business hours: 9 AM – 5 PM · Overlap calculated on open
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⏰Time Zone Facts
America/DenverData: IANA Time Zone Database
☀️Climate
Semi-arid.
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📍About Boulder Time Zone
Boulder is in the America/Denver time zone (UTC-6). Boulder observes Daylight Saving Time.
Boulder Time Difference at a Glance
Quick Facts: Boulder Time
- Time Zone: America/Denver (UTC-6)
- Daylight Saving: Observed
- Country: United States
- Coordinates: 40.02, -105.27
- Calling Code: +1 303
🌐Time Difference from Boulder
| City | Now | Diff | Overlap |
|---|---|---|---|
| 🌙New York | 5:51 AM | +2h | |
| 🌅London | 10:51 AM | +7h | |
| 🌆Tokyo | 6:51 PM | +15h | |
| 🌅Paris | 11:51 AM | +8h | |
| ☀️Dubai | 1:51 PM | +10h | |
| 🌆Singapore | 5:51 PM | +14h | |
| 🌆Hong Kong | 5:51 PM | +14h | |
| 🌆Shanghai | 5:51 PM | +14h |
❓Frequently Asked Questions
Boulder is in the MST/MDT time zone (UTC-6). The current local time is displayed at the top of this page and updates in real-time. Boulder is located in United States.
Boulder is in the MST/MDT time zone, which is UTC-6. The IANA time zone identifier is America/Denver.
Yes, Boulder observes Daylight Saving Time (DST) from March to November. During DST, clocks move forward by 1 hour. Check the Time Zone Facts section above for the exact date of the next DST change.
Boulder is 7 hours behind London. When it's 12:00 PM (noon) in London, it's 5:00 AM in Boulder. Note that this difference may vary by 1 hour when either location observes Daylight Saving Time.
Boulder is 2 hours behind New York (Eastern Time). When it's 9:00 AM in New York, it's 7:00 AM in Boulder. This difference may change during Daylight Saving Time transitions.
The best time to call Boulder is during business hours: 9:00 AM to 6:00 PM local time (MST/MDT). For international calls, use our Time Converter above to find overlapping business hours between Boulder and your location.
Standard business hours in Boulder are Monday to Friday, 9:00 AM to 6:00 PM MST/MDT. Banks typically operate 9:00 AM to 5:00 PM. Shops may have extended hours, often until 8:00 PM or later in commercial areas.
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