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Current Local Time in Boulder, Colorado, USA

123691245781011
2:08:33 pm MDT

Friday, May 23, 2025

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Country: United States
State: Colorado (CO)
Lat/Long: 40°01'N / 105°16'W
Elevation: 1623 m
Currency: United States Dollar (USD)
Languages: English
Country Code: +1
Location of BoulderLocation

Holiday Note: May 26, Memorial Day. Businesses may be closed. See more

°F

Weather

73 °F

Scattered clouds.
85 / 49 °F

Sat 24.70 / 51 °F
Sun 25.62 / 50 °F

Weather by CustomWeather, © 2025

More weather details

Time Zone

MDT (Mountain Daylight Time)
UTC/GMT -6 hours
Daylight Saving Time started on Sunday, March 9, 2025 at 2:00 am

DST started

Mar 9, 2025
Forward 1 hour
Daylight Saving Time ends on Sunday, November 2, 2025 at 2:00 am

DST ends

Nov 2, 2025
Back 1 hour

Difference

2 hours behind
Columbus

Sunrise

5:39 am
62° Northeast

Sunset

8:17 pm
298° Northwest

Day length

14 hours, 38 minutes
+1m 33s longer

Moon 15.5%

Rise – 3:14 am
Set – 4:27 pm

More Sun & Moon in Boulder
+ Show More Twilight and Moon Phase Information

Solar Noon

Sun in South: 12:57 pm
Altitude: 70.7°

Astronomical
Twilight

3:44 am – 4:28 am
9:28 pm – 10:12 pm

Nautical
Twilight

4:28 am – 5:07 am
8:48 pm – 9:28 pm

Civil
Twilight

5:07 am – 5:39 am
8:17 pm – 8:48 pm

Previous
Moon Phase

Third Quarter
May 20, 2025
5:58 am

Next
Moon Phase

New Moon
May 26, 2025
9:02 pm
Boulder
USA
2:0833pm
Friday, May 23, 2025