Home   Sun & Moon   USA   Boulder

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

Moon: 2.9%

Waxing Crescent

Current Time: Feb 27, 2017 at 8:16:44 pm


Sunrise Today: 6:36 am 100° East
Sunset Today: 5:51 pm 260° West


Moonrise Today: 7:19 am 96° East
Moonset Today: 7:17 pm 266° West


Daylight Hours: 11 hours, 14 minutes (+2m 34s)

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

8:16 pm

Altitude

-28.5°

Heading

285° W

Phase

Night

Day length

11h 14m 12s

Change since

Yesterday: +2m 34s

Winter: +1h 54m

Summer: -3h 46m

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

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 – 5:06 am
Astro. Twilight5:06 am – 5:38 am
Nautical Twilight5:38 am – 6:09 am
Civil Twilight6:09 am – 6:36 am
Daylight6:36 am – 5:51 pm
Civil Twilight5:51 pm – 6:18 pm
Nautical Twilight6:18 pm – 6:49 pm
Astro. Twilight6:49 pm – 7:21 pm
Night7:21 pm – 11:59 pm

Sun in Boulder - Next 7 Days

Scroll right to see more
2017Sunrise/SunsetDaylengthSolar Noon
FebSunriseSunsetLengthDifferenceTimeMil. mi
Feb 276:36 am5:51 pm11:14:12+2:3512:13 pm (42.0°)92.078
Feb 286:35 am5:52 pm11:16:47+2:3512:13 pm (42.3°)92.100
Mar 16:33 am5:53 pm11:19:23+2:3512:13 pm (42.7°)92.122
Mar 26:32 am5:54 pm11:21:59+2:3612:13 pm (43.1°)92.145
Mar 36:30 am5:55 pm11:24:36+2:3612:12 pm (43.5°)92.167
Mar 46:29 am5:56 pm11:27:13+2:3612:12 pm (43.9°)92.190
Mar 56:27 am5:57 pm11:29:50+2:3712:12 pm (44.3°)92.213
* All times are local time for Boulder. Dates are based on the Gregorian calendar.

See full month's Sun

Equinoxes & Solstices 2017

Scroll right to see more
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

8:16 pm

Altitude

-11.7°

Heading

276° W

Phase

Waxing Crescent

Percent illuminated

2.9%

Moon in Boulder - Next 7 days

Scroll right to see more
2017Moonrise/MoonsetMeridian Passing
FebMoonriseMoonsetMoonriseTimeDistance (mi)Illumination
Feb 277:19 am7:17 pm-1:14 pm(45.6°)232,3871.9%
Feb 287:54 am8:24 pm-2:05 pm(50.3°)230,7846.4%
Mar 18:29 am9:33 pm-2:57 pm(55.0°)229,78413.4%
Mar 29:06 am10:41 pm-3:50 pm(59.4°)229,35422.6%
Mar 39:46 am11:49 pm-4:44 pm(63.2°)229,41833.3%
Mar 410:29 am--5:40 pm(66.2°)229,88844.9%
Mar 5-12:56 am11:18 am6:37 pm(67.9°)230,68456.8%
* All times are local time for Boulder. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

See full month's Moon

Advertising

Moon Articles

Planets Visible in the Sky in Boulder This Coming Night

 Planetrise/Planetset, Mon, Feb 27, 2017
PlanetRiseSetMeridianComment
MercuryTue 6:32 amTue 5:21 pmTue 11:56 amDifficult to see
VenusMon 7:28 amMon 8:45 pmMon 2:06 pmFairly good visibility
MarsMon 8:20 amMon 9:26 pmMon 2:53 pmAverage visiblity
JupiterMon 9:15 pmTue 8:29 amTue 2:52 amPerfect visibility
SaturnTue 2:29 amTue 11:55 amTue 7:12 amAverage visiblity
UranusMon 8:22 amMon 9:21 pmMon 2:51 pmDifficult to see
NeptuneTue 6:44 amTue 5:54 pmTue 12:19 pmVery close to Sun, not visible
* All times are local time for Boulder.

More about the planets visible in the night sky in Boulder