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

Moon: 3.0%

Waxing Crescent

Current Time: Apr 27, 2017 at 3:11:38 pm


Sunrise Today: 6:05 am 71° East
Sunset Today: 7:52 pm 289° West


Moonrise Today: 7:17 am 72° East
Moonset Today: 9:28 pm 290° Northwest


Daylight Hours: 13 hours, 46 minutes (+2m 20s)

Location of BoulderLocation

Today's Sun Position in Boulder

The Sun's altitude in Boulder today. The horizontal line signifies the horizon, the vertical lines show the times of sunrise and sunset. Altitude and heading are displayed in a separate box. The graph defaults to current time. Hover over it to select a different time. How to use this

Sun's current position over Earth

3:11 pm

Altitude

51.1°

Heading

238° SW

Position

Daylight

Day length

13h 46m 16s

Change since

Yesterday: +2m 20s

Winter: +4h 26m

Summer: -1h 14m

Night, Twilight, and Daylight Times in Boulder Today

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Day, night, and twilight times in Boulder today. Black is nighttime, light blue is daytime. The darker blue shadings represent the twilight phases during dawn (left) and dusk (right). Hover over the graph for more information. How to use this

Night12:00 am – 4:24 am
Astro. Twilight4:24 am – 5:01 am
Nautical Twilight5:01 am – 5:36 am
Civil Twilight5:36 am – 6:05 am
Daylight6:05 am – 7:52 pm
Civil Twilight7:52 pm – 8:21 pm
Nautical Twilight8:21 pm – 8:56 pm
Astro. Twilight8:56 pm – 9:34 pm
Night9:34 pm – 11:59 pm

Sun in Boulder - Next 7 Days

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2017Sunrise/SunsetDaylengthSolar Noon
AprSunriseSunsetLengthDifferenceTimeMil. mi
Apr 276:05 am7:52 pm13:46:16+2:2012:58 pm (64.1°)93.581
Apr 286:04 am7:53 pm13:48:35+2:1912:58 pm (64.4°)93.605
Apr 296:03 am7:54 pm13:50:53+2:1812:58 pm (64.7°)93.629
Apr 306:01 am7:55 pm13:53:10+2:1612:58 pm (65.0°)93.652
May 16:00 am7:56 pm13:55:26+2:1512:58 pm (65.3°)93.675
May 25:59 am7:57 pm13:57:40+2:1412:57 pm (65.6°)93.698
May 35:58 am7:58 pm13:59:53+2:1212:57 pm (65.9°)93.720
* All times are local time for Boulder. Time is adjusted for DST when applicable. Dates are based on the Gregorian calendar.

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Equinoxes & Solstices 2017

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2017DateTime
March EquinoxMar 204:29 am
June SolsticeJun 2010:24 pm
September EquinoxSep 222:02 pm
December SolsticeDec 219:28 am
* All times are local Boulder time.

Sun Articles

Today's Moon in Boulder

The Moon's path in Boulder today. The horizontal line signifies the horizon, the vertical lines show times and headings of moonrise and moonset. The graph defaults to current time. Hover over it to select a different time. How to use this

Year 2017 Moon Phases

3:11 pm

Altitude

61.8°

Heading

207° SW

Position

Waxing Crescent

Percent illuminated

3.0%

Moon in Boulder - Next 7 days

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2017Moonrise/MoonsetMeridian Passing
AprMoonriseMoonsetMoonriseTimeDistance (mi)Illumination
Apr 277:17 am9:28 pm-2:19 pm(64.1°)223,2912.9%
Apr 288:04 am10:39 pm-3:19 pm(67.0°)224,0598.5%
Apr 298:57 am11:44 pm-4:19 pm(68.6°)225,85516.8%
Apr 309:55 am--5:19 pm(68.7°)228,43026.9%
May 1-12:43 am10:56 am6:17 pm(67.5°)231,49138.0%
May 2-1:34 am12:00 pm7:12 pm(65.2°)234,75349.4%
May 3-2:18 am1:04 pm8:04 pm(62.1°)237,98360.5%
* All times are local time for Boulder. Time is adjusted for DST when applicable. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

See full month's Moon

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Moon Articles

Planets Visible in the Sky in Boulder This Coming Night

 Planetrise/Planetset, Thu, Apr 27, 2017
PlanetRiseSetMeridianComment
MercuryThu 5:38 amThu 6:46 pmThu 12:13 pmExtremely difficult to see
VenusThu 4:25 amThu 4:41 pmThu 10:33 amGreat visibility
MarsThu 7:25 amThu 10:07 pmThu 2:46 pmSlightly difficult to see
JupiterThu 5:50 pmFri 5:21 amThu 11:35 pmPerfect visibility
SaturnThu 11:40 pmFri 9:06 amFri 4:23 amPerfect visibility
UranusThu 5:38 amThu 6:45 pmThu 12:11 pmExtremely difficult to see
NeptuneThu 4:01 amThu 3:16 pmThu 9:38 amVery difficult to see
* All times are local time for Boulder.

More about the planets visible in the night sky in Boulder