Current Local Time in Boulder, Colorado, USA

7:01:11 am MDT

Tuesday, May 6, 2025

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

°F

Weather

48 °F

Cloudy.
49 / 43 °F

Wed 7.		60 / 42 °F
Thu 8.		68 / 39 °F

More weather details

Time Zone

MDT (Mountain Daylight Time)
UTC/GMT -6 hours

DST started

Mar 9, 2025
Forward 1 hour

DST ends

Nov 2, 2025
Back 1 hour

Difference

2 hours behind
Columbus

About MDT — Mountain Daylight Time

Set your location

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

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Tools & Converters

Calendar & Holidays

Create the United States calendar

Upcoming Holidays

More Holidays in the United States

Airports

Denver International Airport, DEN
About 33 mi ESE of Boulder
Colorado Springs Airport, COS
About 89 mi SSE of Boulder

Other cities near Boulder

Fullscreen Exit

Boulder

USA

7:0111am

Tuesday, May 6, 2025