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

Moon: 66.7%

Waning Gibbous

Current Time: May 24, 2019 at 3:58:04 pm


Sunrise Today: 5:38 am 62° Northeast
Sunset Today: 8:17 pm 299° Northwest


Moonrise Today: 12:44 am 117° Southeast
Moonset Today: 10:42 am 244° Southwest


Daylight Hours: 14 hours, 38 minutes (+1m 32s)

Location of BoulderLocation

Today's Sun Position in Boulder

Time:3:58 pm
Altitude:47.3°
Direction:257° W
Phase:Daylight

Day length today: 14h 38m 45s (May 24, 2019)

1 minute, 32 seconds longer than yesterday (May 23, 2019)

5 hours, 19 minutes longer than winter solstice (Dec 21, 2018)

22 minutes, 14 seconds shorter than summer solstice (Jun 21, 2018)

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 – 3:43 am
Astro. Twilight3:43 am – 4:28 am
Nautical Twilight4:28 am – 5:07 am
Civil Twilight5:07 am – 5:38 am
Daylight5:38 am – 8:17 pm
Civil Twilight8:17 pm – 8:49 pm
Nautical Twilight8:49 pm – 9:28 pm
Astro. Twilight9:28 pm – 10:13 pm
Night10:13 pm – 11:59 pm

Sun in Boulder - Next 7 Days

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2019Sunrise/SunsetDaylengthSolar Noon
MaySunriseSunsetLengthDifferenceTimeMil. mi
May 245:38 am8:17 pm14:38:45+1:3212:57 pm (70.8°)94.136
May 255:38 am8:18 pm14:40:15+1:2912:58 pm (71.0°)94.153
May 265:37 am8:19 pm14:41:42+1:2612:58 pm (71.2°)94.170
May 275:36 am8:20 pm14:43:06+1:2412:58 pm (71.3°)94.187
May 285:36 am8:20 pm14:44:27+1:2112:58 pm (71.5°)94.204
May 295:35 am8:21 pm14:45:46+1:1812:58 pm (71.6°)94.220
May 305:35 am8:22 pm14:47:02+1:1512:58 pm (71.8°)94.235
* All times are local time for Boulder. Time is adjusted for DST when applicable. They take into account refraction. Dates are based on the Gregorian calendar.

See full month's Sun


Today's Moon in Boulder

Year 2019 Moon Phases

Moon in Boulder - Next 7 days

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2019Moonrise/MoonsetMeridian Passing
MayMoonriseMoonsetMoonriseTimeDistance (mi)Illumination
May 2412:44 am10:42 am-5:41 am(29.5°)249,44870.5%
May 251:21 am11:40 am-6:28 am(32.2°)250,68961.1%
May 261:53 am12:37 pm-7:12 am(35.6°)251,11951.5%
May 272:22 am1:35 pm-7:55 am(39.7°)250,70441.7%
May 282:50 am2:33 pm-8:38 am(44.1°)249,47332.2%
May 293:16 am3:32 pm-9:20 am(48.9°)247,52423.3%
May 303:42 am4:33 pm-10:03 am(53.7°)245,01015.2%
* All times are local time for Boulder. Time is adjusted for DST when applicable. 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, Fri, May 24, 2019
PlanetRiseSetMeridianComment
MercuryFri 5:48 amFri 8:40 pmFri 1:14 pmDifficult to see
VenusFri 4:39 amFri 6:21 pmFri 11:30 amSlightly difficult to see
MarsFri 7:44 amFri 10:50 pmFri 3:17 pmAverage visibility
JupiterFri 9:32 pmSat 6:54 amSat 2:13 amPerfect visibility
SaturnFri 11:31 pmSat 9:01 amSat 4:16 amPerfect visibility
UranusFri 4:16 amFri 5:46 pmFri 11:01 amVery difficult to see
NeptuneSat 2:25 amSat 1:52 pmSat 8:08 amVery difficult to see
* All times are local time for Boulder.

More about the planets visible in the night sky in Boulder