Current Local Time in Boulder, Colorado, USA

17 h 37 m 23 MST

samedi 28 février 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

Astronomy Note: 3 mar, Total Lunar Eclipse is visible in Boulder. See eclipse info for Boulder

°C

Weather

16 °C

Partly sunny.
18 / 2 °C

dim 1.		18 / 2 °C
lun 2.		21 / 3 °C

More weather details

Time Zone

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

DST starts

8 mar 2026
Forward 1 hour

DST ends

1 nov 2026
Back 1 hour

Difference

2 hours behind
New York

About MST — Mountain Standard Time

Set your location

Sunrise

06 h 35
↑ 100° East

Sunset

17 h 51
↑ 261° West

Day length

11 hours, 16 minutes
+2m 35s longer

Moon 92.9%

Set – 05 h 10
Rise – 14 h 56

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

Solar Noon

Sun in South: 12 h 13
Altitude: 42,3°

Astronomical
Twilight

05 h 05 – 05 h 37
18 h 50 – 19 h 21

Nautical
Twilight

05 h 37 – 06 h 08
18 h 19 – 18 h 50

Civil
Twilight

06 h 08 – 06 h 35
17 h 51 – 18 h 19

Previous
Moon Phase

First Quarter
24 février 2026
05 h 27

Next
Moon Phase

Full Moon
3 mars 2026
04 h 37

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Tools & Converters

Calendar & Holidays

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Upcoming Holidays

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Airports

Denver International Airport, DEN
About 54 km ESE of Boulder
Colorado Springs Airport, COS
About 143 km SSE of Boulder

Other cities near Boulder

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Boulder

USA

17:3723

samedi 28 février 2026