Current Local Time in Boulder, Colorado, USA

9:15:14 am MDT

Saturday, March 21, 2026

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

55 °F

Sunny.
88 / 57 °F

Sun 22.		66 / 44 °F
Mon 23.		73 / 39 °F

More weather details

Time Zone

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

DST started

Mar 8, 2026
Forward 1 hour

DST ends

Nov 1, 2026
Back 1 hour

Difference

2 hours behind
Columbus

About MDT — Mountain Daylight Time

Set your location

Sunrise

7:02 am
↑ 89° East

Sunset

7:14 pm
↑ 271° West

Day length

12 hours, 12 minutes
+2m 39s longer

Moon 8.8%

Rise – 8:08 am
Set – 10:51 pm

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

Solar Noon

Sun in South: 1:08 pm
Altitude: 50.5°

Astronomical
Twilight

5:31 am – 6:04 am
8:13 pm – 8:45 pm

Nautical
Twilight

6:04 am – 6:35 am
7:41 pm – 8:13 pm

Civil
Twilight

6:35 am – 7:02 am
7:14 pm – 7:41 pm

Previous
Moon Phase

New Moon
March 18, 2026
7:23 pm

Next
Moon Phase

First Quarter
March 25, 2026
1:17 pm

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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

9:1514am

Saturday, March 21, 2026