Local time · Boulder
What time is it in Boulder, Colorado?
2:48:55AM
- Time zone
- MST
- America/Denver
- UTC offset
- −7:00
- Standard is −7:00
- Daylight saving
- Not in force
- Starts Sun, Mar 14
- Population
- 106,803
- City proper
Around the world
About this clock
Daylight saving in Boulder
Boulder is currently on standard time. The next change is Sunday, March 14, 2027, when 2:00 am becomes 3:00 am local time.
Boulder sits at 40.02°N, 105.25°W. For sunrise and sunset there — which do depend on exactly where it is, unlike the clock — see sunrise and sunset in Boulder.
Clock time against sun time
The clock says the same thing everywhere in Mountain Standard Time, but the sun does not. Over Boulder it is highest at 11:45 am today — 15 minutes before clock noon.
At 105.3°W, Boulder sits almost exactly on Mountain Standard Time’s 105° meridian, so on standard time the clock and the sun agree to within a few minutes.
Daylight in Boulder today
- Sunrise
- 6:44 am
- Sunset
- 4:46 pm
- Day length
- 10 hours 2 minutes
- Longest day
- 15 hours 1 minute
Today runs 10 hours 2 minutes in Boulder, and the day is getting shorter by 2 minutes a day. Across the year it swings 5 hours 42 minutes, from 15 hours 1 minute at the June solstice down to 9 hours 19 minutes in December.
At 40.0°N that puts Boulder between Kailua at 2 hours 22 minutes and Fairbanks at 18 hours 9 minutes.