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Boulder, CO, USA — Sunrise, Sunset, and Moon Times for Today

Moon: 79.0%
Waxing Gibbous
Current Time: Jan 31, 2023 at 11:06:29 am
Sunrise Today: 7:10 am 112° Southeast
Sunset Today: 5:18 pm 248° West
Moonrise Today: 12:47 pm 55° Northeast
Moonset Today: 3:37 am 304° Northwest
Daylight Hours: 10 hours, 8 minutes (+2m 5s)
Location of BoulderLocation

Today's Sun Position in Boulder

Time:11:06 am
Altitude:30.6°
Direction:161° S
Phase:Daylight

Day length today: 10h 8m 16s (Jan 31, 2023)

2 minutes, 5 seconds longer than yesterday (Jan 30, 2023)

48 minutes, 40 seconds longer than winter solstice (Dec 21, 2022)

4 hours, 52 minutes shorter than summer solstice (Jun 21, 2022)

Night, Twilight, and Daylight Times in Boulder Today

12 am
2 am
4 am
6 am
8 am
10 am
12 pm
2 pm
4 pm
6 pm
8 pm
10 pm
Night12:00 am – 5:37 am
Astro. Twilight5:37 am – 6:09 am
Nautical Twilight6:09 am – 6:41 am
Civil Twilight6:41 am – 7:10 am
Daylight7:10 am – 5:18 pm
Civil Twilight5:18 pm – 5:47 pm
Nautical Twilight5:47 pm – 6:20 pm
Astro. Twilight6:20 pm – 6:51 pm
Night6:51 pm – 11:59 pm

Sun in Boulder - Next 7 Days

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2023Sunrise/SunsetDaylengthSolar Noon
JanSunriseSunsetLengthDiff.TimeMil. mi
Jan 317:10 am5:18 pm10:08:16+2:0512:14 pm (32.7°)91.582
Feb 17:09 am5:20 pm10:10:24+2:0712:14 pm (33.0°)91.594
Feb 27:08 am5:21 pm10:12:33+2:0912:14 pm (33.3°)91.607
Feb 37:07 am5:22 pm10:14:44+2:1112:14 pm (33.6°)91.620
Feb 47:06 am5:23 pm10:16:57+2:1212:14 pm (33.9°)91.634
Feb 57:05 am5:24 pm10:19:11+2:1412:15 pm (34.2°)91.648
Feb 67:04 am5:26 pm10:21:27+2:1512:15 pm (34.5°)91.663
* All times are local time for Boulder. They take into account refraction. Dates are based on the Gregorian calendar.

See full month's Sun


Today's Moon in Boulder

Year 2023 Moon Phases

Moon in Boulder - Next 7 days

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2023Moonrise/MoonsetMeridian Passing
JanMoonriseMoonsetMoonriseTimeDistance (mi)Illumination
Jan 31-3:37 am12:47 pm8:39 pm(76.4°)250,05982.0%
Feb 1-4:37 am1:32 pm9:31 pm(77.3°)251,46088.9%
Feb 2-5:30 am2:23 pm10:22 pm(76.8°)252,27794.2%
Feb 3-6:17 am3:20 pm11:12 pm(75.0°)252,57097.8%
Feb 4-6:56 am4:21 pmMoon does not pass the meridian on this day.
Feb 5-7:29 am5:23 pm12:00 am(72.0°)252,39699.6%
Feb 6-7:57 am6:25 pm12:45 am(67.9°)251,80199.6%
* All times are local time for Boulder. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

See full month's Moon

Planets Visible in the Sky in Boulder This Coming Night

 Planetrise/Planetset, Tue, Jan 31, 2023
PlanetRiseSetMeridianComment
MercuryTue 5:44 amTue 3:15 pmTue 10:30 amSlightly difficult to see
VenusTue 8:24 amTue 7:17 pmTue 1:50 pmFairly good visibility
MarsTue 12:16 pmWed 3:23 amTue 7:49 pmPerfect visibility
JupiterTue 9:35 amTue 9:48 pmTue 3:41 pmFairly good visibility
SaturnTue 7:58 amTue 6:25 pmTue 1:12 pmDifficult to see
UranusTue 11:09 amWed 1:05 amTue 6:07 pmDifficult to see
NeptuneTue 9:06 amTue 8:45 pmTue 2:55 pmVery difficult to see
* All times are local time for Boulder.

More about the planets visible in the night sky in Boulder