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Current Local Time in Boulder, Colorado, USA

123691245781011
7:01:11 am MDT

Tuesday, May 6, 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
°F

Weather

48 °F

Cloudy.
49 / 43 °F

Wed 7.60 / 42 °F
Thu 8.68 / 39 °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

5:54 am
67° East

Sunset

8:01 pm
293° Northwest

Day length

14 hours, 7 minutes
+2m 8s longer

Moon 69.4%

Set – 3:15 am
Rise – 2:33 pm

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

Solar Noon

Sun in South: 12:57 pm
Altitude: 66.8°

Astronomical
Twilight

4:08 am – 4:48 am
9:07 pm – 9:47 pm

Nautical
Twilight

4:48 am – 5:24 am
8:31 pm – 9:07 pm

Civil
Twilight

5:24 am – 5:54 am
8:01 pm – 8:31 pm

Previous
Moon Phase

First Quarter
May 4, 2025
7:51 am

Next
Moon Phase

Full Moon
May 12, 2025
10:55 am
Boulder
USA
7:0111am
Tuesday, May 6, 2025