Check the current local time in Boulder, Colorado, United States of America, including timezone, daylight saving time information and time difference details.
America/Denver
Online clock — Boulder
Use the time converter to plan calls, meetings, and working hours between your location and Boulder, United States of America. Time calculations use the America/Denver time zone and automatically adjust for daylight saving time when applicable.
Day length: 14 h 45 m 10 s
Phase: New moon
Daylight Saving Time
DST starts
Date and time
Clock change
09:00 10:00 (+1 hour forward)
DST ends
Date and time
Clock change
08:00 07:00 (−1 hour back)
40.0150, -105.2706
Boulder is one of the cities in United States of America, located in North America. The population of Boulder is 106,803 people, which is approximately ~0.03% of the total population of United States of America.
| City ▲ | Time |
|---|---|
| Austin America/Chicago (—) | — |
| Brooklyn America/New_York (—) | — |
| Charlotte America/New_York (—) | — |
| Chicago America/Chicago (—) | — |
| Columbus America/New_York (—) | — |
| Dallas America/Chicago (—) | — |
| Fort Worth America/Chicago (—) | — |
| Houston America/Chicago (—) | — |
| Indianapolis America/Indiana/Indianapolis (—) | — |
| Jacksonville America/New_York (—) | — |
| Los Angeles America/Los_Angeles (—) | — |
| Manhattan America/New_York (—) | — |
| New York America/New_York (—) | — |
| Philadelphia America/New_York (—) | — |
| Phoenix America/Phoenix (—) | — |
| Queens County America/New_York (—) | — |
| San Antonio America/Chicago (—) | — |
| San Diego America/Los_Angeles (—) | — |
| San Jose America/Los_Angeles (—) | — |
| The Bronx America/New_York (—) | — |
| City ▲ | Time |
|---|---|
| Bowie America/New_York (—) | — |
| Brookline America/New_York (—) | — |
| Dothan America/Chicago (—) | — |
| El Cajon America/Los_Angeles (—) | — |
| Erie America/New_York (—) | — |
| Flagstaff America/Phoenix (—) | — |
| Fremont America/Los_Angeles (—) | — |
| Hartford America/New_York (—) | — |
| Lakewood America/Los_Angeles (—) | — |
| Little Rock America/Chicago (—) | — |
| Macon America/New_York (—) | — |
| Mesa America/Phoenix (—) | — |
| Nashville America/Chicago (—) | — |
| North Las Vegas America/Los_Angeles (—) | — |
| Oakland America/Los_Angeles (—) | — |
| Ontario America/Los_Angeles (—) | — |
| Pomona America/Los_Angeles (—) | — |
| Troy America/Detroit (—) | — |
| Waterloo America/Chicago (—) | — |
| West Allis America/Chicago (—) | — |
The current local time in Boulder is —.
Boulder uses the timezone America/Denver.
Daylight saving time in Boulder starts on March 8, 2026.
Daylight saving time in Boulder ends on November 1, 2026.
Boulder is also known as: Boulder, 볼더, Болдер, Боулдер, Боулдър, בולדר, بولدر, بولدر، کلرادو, بولڈر، کولوراڈو, बाउल्डर, बोल्डर, โบลเดอร์, ボルダー, 波德.
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