Boulder — Local Time

19:52:50

Thursday, June 4, 2026

MDT (Mountain Daylight Time) UTC-6

Sunrise

05:41

Sunset

20:52

Day Length

15h 10m

Solar Noon

13:17

Sun is highest in the sky

Civil Dawn: 05:07 · Civil Dusk: 21:27

Golden hour · Morning

05:41 AM – 06:24 AM

Golden hour · Evening

08:10 PM – 08:52 PM

+1min vs yesterday

Daylight Saving Time

MST → MDT Mar 8, 2026 Clocks spring forward 1 hour

MDT → MST Nov 1, 2026 Clocks fall back 1 hour

Next change: Nov 1, 2026 (in 150d)

🌖 Moon Phase

Waning Gibbous

Illumination: 78%

Moonrise: 23:31 · Moonset: 11:55

Last Quarter · 3d

Time Difference

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From

Boulder, United States

42° 45' N, 109° 43' W

Upcoming Holidays

Fri, Jun 19 Juneteenth

14d

Sat, Jul 4 Independence Day

29d

Mon, Sep 7 Labor Day

94d

Mon, Oct 12 Columbus Day

129d

Wed, Nov 11 Veterans Day

159d

View All Holidays →

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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 05:41 and sunset is at 20:52. The total day length is 15h 10m.

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.