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

Moon: 21.1%

Waxing Crescent

Current Time: May 29, 2017 at 11:19:26 am


Sunrise Today: 5:35 am 60° Northeast
Sunset Today: 8:21 pm 300° Northwest


Moonrise Today: 9:46 am 67° East


Daylight Hours: 14 hours, 46 minutes (+1m 17s)

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

11:19 am

Altitude

62.1°

Heading

124° SE

Position

Daylight

Day length

14h 46m 22s

Change since

Yesterday: +1m 17s

Winter: +5h 26m

Summer: -14m 36s

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 – 3:37 am
Astro. Twilight3:37 am – 4:23 am
Nautical Twilight4:23 am – 5:03 am
Civil Twilight5:03 am – 5:35 am
Daylight5:35 am – 8:21 pm
Civil Twilight8:21 pm – 8:53 pm
Nautical Twilight8:53 pm – 9:34 pm
Astro. Twilight9:34 pm – 10:20 pm
Night10:20 pm – 11:59 pm

Sun in Boulder - Next 7 Days

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2017Sunrise/SunsetDaylengthSolar Noon
MaySunriseSunsetLengthDifferenceTimeMil. mi
May 295:35 am8:21 pm14:46:22+1:1712:58 pm (71.7°)94.227
May 305:35 am8:22 pm14:47:37+1:1412:58 pm (71.9°)94.241
May 315:34 am8:23 pm14:48:48+1:1112:58 pm (72.0°)94.255
Jun 15:34 am8:24 pm14:49:56+1:0812:58 pm (72.1°)94.269
Jun 25:33 am8:24 pm14:51:01+1:0512:59 pm (72.3°)94.282
Jun 35:33 am8:25 pm14:52:03+1:0112:59 pm (72.4°)94.295
Jun 45:33 am8:26 pm14:53:02+0:5812:59 pm (72.5°)94.307
* 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

11:19 am

Altitude

15.6°

Heading

81° E

Position

Waxing Crescent

Percent illuminated

21.1%

Moon in Boulder - Next 7 days

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2017Moonrise/MoonsetMeridian Passing
MayMoonriseMoonsetMoonriseTimeDistance (mi)Illumination
May 299:46 am--5:03 pm(66.5°)229,91823.4%
May 30-12:15 am10:52 am5:58 pm(63.5°)233,68133.9%
May 31-12:57 am11:57 am6:49 pm(59.9°)237,50644.9%
Jun 1-1:33 am1:00 pm7:37 pm(55.8°)241,12955.7%
Jun 2-2:06 am2:01 pm8:23 pm(51.5°)244,35966.0%
Jun 3-2:37 am3:00 pm9:07 pm(47.2°)247,08075.2%
Jun 4-3:06 am3:58 pm9:50 pm(43.1°)249,23983.3%
* 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.

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Moon Articles

Planets Visible in the Sky in Boulder This Coming Night

 Planetrise/Planetset, Mon, May 29, 2017
PlanetRiseSetMeridianComment
MercuryMon 4:37 amMon 6:22 pmMon 11:29 amDifficult to see
VenusMon 3:32 amMon 4:25 pmMon 9:58 amGreat visibility
MarsMon 6:41 amMon 9:45 pmMon 2:13 pmDifficult to see
JupiterMon 3:32 pmTue 3:09 amMon 9:21 pmPerfect visibility
SaturnMon 9:27 pmTue 6:53 amTue 2:10 amPerfect visibility
UranusMon 3:36 amMon 4:47 pmMon 10:12 amDifficult to see
NeptuneMon 1:56 amMon 1:13 pmMon 7:35 amVery difficult to see
* All times are local time for Boulder.

More about the planets visible in the night sky in Boulder