Current Local Time in Longmont, Colorado, USA

2:34:09 am MST

Friday, December 19, 2025

Country:	United States
State:	Colorado (CO)
Lat/Long:	40°10'N / 105°06'W
Elevation:	1519 m
Currency:	United States Dollar (USD)
Languages:	English
Country Code:	+1

°F

Weather

49 °F

Clear.
63 / 35 °F

Sat 20.		56 / 34 °F
Sun 21.		54 / 29 °F

More weather details

Time Zone

MST (Mountain Standard Time)
UTC/GMT -7 hours

DST started

Mar 9, 2025
Forward 1 hour

DST ended

Nov 2, 2025
Back 1 hour

Difference

1 hour behind
Chicago

About MST — Mountain Standard Time

Set your location

Sunrise

7:18 am
↑ 121° Southeast

Sunset

4:37 pm
↑ 239° Southwest

Day length

9 hours, 19 minutes
-9s shorter

Moon 0.6%

Rise – 7:21 am
Set – 4:03 pm

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

Solar Noon

Sun in South: 11:57 am
Altitude: 26.4°

Astronomical
Twilight

5:40 am – 6:13 am
5:41 pm – 6:15 pm

Nautical
Twilight

6:13 am – 6:47 am
5:07 pm – 5:41 pm

Civil
Twilight

6:47 am – 7:18 am
4:37 pm – 5:07 pm

Previous
Moon Phase

Third Quarter
December 11, 2025
1:51 pm

Next
Moon Phase

New Moon
December 19, 2025
6:43 pm

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Tools & Converters

Calendar & Holidays

Create the United States calendar

Upcoming Holidays

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Airports

Denver International Airport, DEN
About 31 mi SE of Longmont
LONGMONT UNITED HOSPITAL
About 2 mi NW of Longmont
DENVER ARTCC
About 2 mi NW of Longmont

Other cities near Longmont

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Longmont

USA

2:34 09 am

Friday, December 19, 2025