Boulder — Local Time

07:00:02
Friday, July 24, 2026
MDT(Mountain Daylight Time)UTC-6
Sunrise
06:02
Sunset
20:48
Day Length
14h 46m
Solar Noon
13:25
Sun is highest in the sky
Civil Dawn: 05:29 · Civil Dusk: 21:21
06:0220:48
Golden hour · Morning
06:02 – 06:43
Golden hour · Evening
20:07 – 20:48
-2min vs yesterday

Daylight Saving Time

MST → MDTMar 8, 2026Clocks spring forward 1 hour
MDT → MSTNov 1, 2026Clocks fall back 1 hour
Next change: Nov 1, 2026 (in 100d)

🌔Moon Phase

Waxing Gibbous
Illumination: 74%
Moonrise: 15:33 · Moonset: 03:57
Full Moon · 5d

Time Difference

New York
09:00+2h
London
14:00+7h
Paris
15:00+8h
Athens
16:00+9h
Moscow
16:00+9h
Dubai
17:00+10h
Mumbai
18:30+11h 30m
Beijing
21:00+14h
Tokyo
22:00+15h
Sydney
23:00+16h

Distance Calculator

Calculate the air distance from Boulder to any city worldwide

Boulder, United States
42° 45' N, 109° 43' W

Upcoming Holidays

Mon, Sep 7Labor Day
45d
Mon, Oct 12Columbus Day
80d
Wed, Nov 11Veterans Day
110d
Thu, Nov 26Thanksgiving Day
125d
Fri, Dec 25Christmas Day
154d
View All Holidays →

Nearby Cities

Pinedale17.7 km
MDT
Marbleton38.3 km
MDT
Big Piney39.7 km
MDT

Frequently Asked Questions

What time is it in Boulder?

The current local time in Boulder, United States is displayed above in real-time. Boulder uses the MDT timezone (UTC-6).

Does Boulder observe daylight saving time?

Yes, Boulder observes daylight saving time. Clocks spring forward in March 2026 and fall back in November 2026.

When does the sun rise and set in Boulder?

Today in Boulder, sunrise is at 06:02 and sunset is at 20:48. The total day length is 14h 46m.

What is the UTC offset for Boulder?

Boulder is in the MDT timezone with a UTC offset of UTC-6. The IANA timezone identifier is America/Denver.