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Boulder, Colorado, USA — Sunrise, Sunset, and Daylength, December 2019

Daylight

6:46 am – 5:43 pm
10 hours, 57 minutes

Current Time: Feb 21, 2019 at 9:18:33 am

Sun Direction: 131° Southeast

Sun Altitude: 25.1°

Sun Distance: 91.929 million mi


Next Equinox: Mar 20, 2019 3:58 pm (Vernal)

Sunrise Today: 6:46 am 103° East

Sunset Today: 5:43 pm 257° West

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2019 Sun Graph for Boulder

December 2019 — Sun in Boulder

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2019Sunrise/SunsetDaylengthAstronomical TwilightNautical TwilightCivil TwilightSolar Noon
DecSunriseSunsetLengthDifferenceStartEndStartEndStartEndTimeMil. mi
17:03 am (118°)4:36 pm (242°)9:32:47−1:165:27 am6:12 pm5:59 am5:39 pm6:33 am5:06 pm11:50 am (28.2°)91.659
27:04 am (118°)4:36 pm (241°)9:31:34−1:135:28 am6:12 pm6:00 am5:39 pm6:34 am5:06 pm11:50 am (28.0°)91.644
37:05 am (119°)4:35 pm (241°)9:30:24−1:105:29 am6:12 pm6:01 am5:39 pm6:35 am5:06 pm11:50 am (27.9°)91.629
47:06 am (119°)4:35 pm (241°)9:29:17−1:065:29 am6:12 pm6:02 am5:39 pm6:36 am5:05 pm11:51 am (27.7°)91.614
57:07 am (119°)4:35 pm (241°)9:28:14−1:035:30 am6:12 pm6:03 am5:39 pm6:37 am5:05 pm11:51 am (27.6°)91.600
67:08 am (119°)4:35 pm (241°)9:27:14−0:595:31 am6:12 pm6:04 am5:39 pm6:38 am5:05 pm11:52 am (27.5°)91.586
77:09 am (119°)4:35 pm (241°)9:26:17−0:565:32 am6:12 pm6:05 am5:39 pm6:39 am5:05 pm11:52 am (27.4°)91.573
87:10 am (119°)4:35 pm (240°)9:25:24−0:525:33 am6:12 pm6:05 am5:39 pm6:39 am5:05 pm11:52 am (27.3°)91.560
97:11 am (120°)4:35 pm (240°)9:24:35−0:495:33 am6:12 pm6:06 am5:39 pm6:40 am5:05 pm11:53 am (27.2°)91.548
107:11 am (120°)4:35 pm (240°)9:23:49−0:455:34 am6:12 pm6:07 am5:40 pm6:41 am5:06 pm11:53 am (27.1°)91.536
117:12 am (120°)4:35 pm (240°)9:23:07−0:425:35 am6:13 pm6:08 am5:40 pm6:42 am5:06 pm11:54 am (27.0°)91.525
127:13 am (120°)4:35 pm (240°)9:22:29−0:385:36 am6:13 pm6:09 am5:40 pm6:43 am5:06 pm11:54 am (26.9°)91.515
137:14 am (120°)4:36 pm (240°)9:21:54−0:345:36 am6:13 pm6:09 am5:40 pm6:43 am5:06 pm11:55 am (26.9°)91.505
147:14 am (120°)4:36 pm (240°)9:21:24−0:305:37 am6:13 pm6:10 am5:40 pm6:44 am5:06 pm11:55 am (26.8°)91.495
157:15 am (120°)4:36 pm (240°)9:20:57−0:265:38 am6:14 pm6:11 am5:41 pm6:45 am5:07 pm11:56 am (26.7°)91.486
167:16 am (120°)4:36 pm (240°)9:20:34−0:235:38 am6:14 pm6:11 am5:41 pm6:45 am5:07 pm11:56 am (26.7°)91.478
177:17 am (120°)4:37 pm (240°)9:20:15−0:195:39 am6:14 pm6:12 am5:41 pm6:46 am5:07 pm11:57 am (26.7°)91.470
187:17 am (120°)4:37 pm (240°)9:19:59−0:155:39 am6:15 pm6:12 am5:42 pm6:47 am5:08 pm11:57 am (26.6°)91.463
197:18 am (120°)4:38 pm (240°)9:19:48−0:115:40 am6:15 pm6:13 am5:42 pm6:47 am5:08 pm11:58 am (26.6°)91.456
207:18 am (120°)4:38 pm (240°)9:19:40−0:075:41 am6:16 pm6:14 am5:43 pm6:48 am5:09 pm11:58 am (26.6°)91.449
217:19 am (120°)4:38 pm (240°)9:19:37−0:035:41 am6:16 pm6:14 am5:43 pm6:48 am5:09 pm11:59 am (26.6°)91.443
227:19 am (120°)4:39 pm (240°)9:19:37< 1s5:42 am6:17 pm6:15 am5:44 pm6:49 am5:10 pm11:59 am (26.6°)91.438
237:20 am (120°)4:39 pm (240°)9:19:42+0:045:42 am6:17 pm6:15 am5:44 pm6:49 am5:10 pm12:00 pm (26.6°)91.433
247:20 am (120°)4:40 pm (240°)9:19:50+0:085:43 am6:18 pm6:16 am5:45 pm6:50 am5:11 pm12:00 pm (26.6°)91.428
257:21 am (120°)4:41 pm (240°)9:20:03+0:125:43 am6:18 pm6:16 am5:45 pm6:50 am5:11 pm12:01 pm (26.6°)91.423
267:21 am (120°)4:41 pm (240°)9:20:19+0:165:43 am6:19 pm6:16 am5:46 pm6:50 am5:12 pm12:01 pm (26.7°)91.419
277:21 am (120°)4:42 pm (240°)9:20:39+0:205:44 am6:20 pm6:17 am5:47 pm6:51 am5:13 pm12:02 pm (26.7°)91.415
287:22 am (120°)4:43 pm (240°)9:21:03+0:245:44 am6:20 pm6:17 am5:47 pm6:51 am5:13 pm12:02 pm (26.8°)91.411
297:22 am (120°)4:43 pm (240°)9:21:31+0:275:44 am6:21 pm6:17 am5:48 pm6:51 am5:14 pm12:03 pm (26.8°)91.408
307:22 am (120°)4:44 pm (240°)9:22:03+0:315:45 am6:22 pm6:18 am5:49 pm6:52 am5:15 pm12:03 pm (26.9°)91.406
317:22 am (120°)4:45 pm (240°)9:22:38+0:355:45 am6:22 pm6:18 am5:49 pm6:52 am5:15 pm12:04 pm (26.9°)91.403
* All times are local time for Boulder. They take into account refraction. Dates are based on the Gregorian calendar.

December Solstice (Winter Solstice) is on Saturday, December 21, 2019 at 9:19 pm in Boulder. In terms of daylight, this day is 5 hours, 41 minutes shorter than on June Solstice. In most locations north of Equator, the shortest day of the year is around this date.

Earliest sunset is on December 7 or December 8.

Why is the earliest sunset not on Winter Solstice?

Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec

Sun and Moon times today for Boulder
Moonrise and moonset times for Boulder in December
Phases of the Moon for Boulder

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What is solar noon?
Directions based on true north