Current Time in Boulder, CO
Boulder is a city in Colorado, home to about 108,000 people. It runs on Mountain Time, observing daylight saving time along with most of the country.
Time zone
Mountain Time
Daylight saving
Active now
Sunrise / Sunset
6:38 AM / 7:15 PM
Population
108,000
Boulder vs. other US and world cities
| Location | Current time | UTC offset | Difference |
|---|---|---|---|
| Eastern Time | 4:01 PM EDT | UTC-4 | 2 hours ahead |
| Central Time | 3:01 PM CDT | UTC-5 | 1 hour ahead |
| Pacific Time | 1:01 PM PDT | UTC-7 | 1 hour behind |
| Alaska Time | 12:01 PM AKDT | UTC-8 | 2 hours behind |
| Hawaii-Aleutian Time | 10:01 AM HST | UTC-10 | 4 hours behind |
| Atlantic Time | 4:01 PM AST | UTC-4 | 2 hours ahead |
| Samoa Time | 9:01 AM GMT-11 | UTC-11 | 5 hours behind |
| Chamorro Time | 6:01 AM GMT+10 | UTC+10 | 16 hours ahead |
| London, UK | 9:01 PM GMT+1 | UTC+1 | 7 hours ahead |
| Paris, France | 10:01 PM GMT+2 | UTC+2 | 8 hours ahead |
| Dubai, UAE | 12:01 AM GMT+4 | UTC+4 | 10 hours ahead |
Other cities on Mountain Time
Cities near Boulder
Frequently asked questions
What time zone is Boulder in?
Boulder is in the Mountain Time zone.
Does Boulder observe daylight saving time?
Yes, Boulder observes daylight saving time, springing forward each March and falling back each November.
What time does the sun rise and set in Boulder today?
Today, sunrise in Boulder is around 6:38 AM and sunset is around 7:15 PM local time.
When do clocks next change in Boulder?
Clocks next fall back on November 1, 2026.