Daylight
6:09 am – 7:49 pm
13 hours, 39 minutes
| Current Time: | Apr 24, 2025 at 3:49:04 am |
|---|---|
| Sun Direction: | 46.04° NE↑ |
| Sun Altitude: | -23.93° |
| Sun Distance: | 93.494 million mi |
| Next Solstice: | Jun 20, 2025 8:42 pm (Summer) |
| Sunrise Today: | 6:09 am↑ 72° East |
| Sunset Today: | 7:49 pm↑ 288° West |
2019 Sun Graph for Boulder
September 2019 — Sun in Boulder
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| 2019 | Sunrise/Sunset | Daylength | Astronomical Twilight | Nautical Twilight | Civil Twilight | Solar Noon | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep | Sunrise | Sunset | Length | Diff. | Start | End | Start | End | Start | End | Time | Mil. mi |
| 1 | 6:28 am ↑ (78°) | 7:32 pm ↑ (281°) | 13:04:03 | −2:31 | 4:53 am | 9:07 pm | 5:27 am | 8:33 pm | 6:00 am | 8:00 pm | 1:01 pm (58.2°) | 93.816 |
| 2 | 6:29 am ↑ (79°) | 7:31 pm ↑ (281°) | 13:01:31 | −2:31 | 4:54 am | 9:06 pm | 5:28 am | 8:31 pm | 6:01 am | 7:58 pm | 1:00 pm (57.8°) | 93.794 |
| 3 | 6:30 am ↑ (79°) | 7:29 pm ↑ (280°) | 12:58:59 | −2:32 | 4:55 am | 9:04 pm | 5:29 am | 8:30 pm | 6:02 am | 7:57 pm | 1:00 pm (57.4°) | 93.771 |
| 4 | 6:31 am ↑ (80°) | 7:27 pm ↑ (280°) | 12:56:26 | −2:32 | 4:56 am | 9:02 pm | 5:30 am | 8:28 pm | 6:03 am | 7:55 pm | 1:00 pm (57.1°) | 93.747 |
| 5 | 6:32 am ↑ (80°) | 7:26 pm ↑ (279°) | 12:53:53 | −2:32 | 4:58 am | 9:00 pm | 5:32 am | 8:26 pm | 6:04 am | 7:53 pm | 12:59 pm (56.7°) | 93.724 |
| 6 | 6:33 am ↑ (81°) | 7:24 pm ↑ (279°) | 12:51:20 | −2:33 | 4:59 am | 8:58 pm | 5:33 am | 8:24 pm | 6:05 am | 7:52 pm | 12:59 pm (56.3°) | 93.700 |
| 7 | 6:34 am ↑ (81°) | 7:23 pm ↑ (278°) | 12:48:46 | −2:33 | 5:00 am | 8:56 pm | 5:34 am | 8:23 pm | 6:06 am | 7:50 pm | 12:59 pm (56.0°) | 93.676 |
| 8 | 6:35 am ↑ (82°) | 7:21 pm ↑ (278°) | 12:46:12 | −2:33 | 5:01 am | 8:54 pm | 5:35 am | 8:21 pm | 6:07 am | 7:48 pm | 12:58 pm (55.6°) | 93.652 |
| 9 | 6:36 am ↑ (82°) | 7:19 pm ↑ (277°) | 12:43:38 | −2:34 | 5:02 am | 8:52 pm | 5:36 am | 8:19 pm | 6:08 am | 7:47 pm | 12:58 pm (55.2°) | 93.628 |
| 10 | 6:37 am ↑ (83°) | 7:18 pm ↑ (277°) | 12:41:04 | −2:34 | 5:04 am | 8:51 pm | 5:37 am | 8:17 pm | 6:09 am | 7:45 pm | 12:58 pm (54.8°) | 93.603 |
| 11 | 6:38 am ↑ (83°) | 7:16 pm ↑ (276°) | 12:38:29 | −2:34 | 5:05 am | 8:49 pm | 5:38 am | 8:16 pm | 6:10 am | 7:43 pm | 12:57 pm (54.4°) | 93.579 |
| 12 | 6:39 am ↑ (84°) | 7:14 pm ↑ (276°) | 12:35:54 | −2:35 | 5:06 am | 8:47 pm | 5:39 am | 8:14 pm | 6:11 am | 7:42 pm | 12:57 pm (54.1°) | 93.554 |
| 13 | 6:39 am ↑ (84°) | 7:13 pm ↑ (275°) | 12:33:18 | −2:35 | 5:07 am | 8:45 pm | 5:40 am | 8:12 pm | 6:12 am | 7:40 pm | 12:56 pm (53.7°) | 93.529 |
| 14 | 6:40 am ↑ (85°) | 7:11 pm ↑ (275°) | 12:30:43 | −2:35 | 5:08 am | 8:43 pm | 5:41 am | 8:10 pm | 6:13 am | 7:38 pm | 12:56 pm (53.3°) | 93.504 |
| 15 | 6:41 am ↑ (85°) | 7:09 pm ↑ (274°) | 12:28:07 | −2:35 | 5:09 am | 8:41 pm | 5:42 am | 8:09 pm | 6:14 am | 7:37 pm | 12:56 pm (52.9°) | 93.480 |
| 16 | 6:42 am ↑ (86°) | 7:08 pm ↑ (274°) | 12:25:31 | −2:35 | 5:10 am | 8:39 pm | 5:43 am | 8:07 pm | 6:15 am | 7:35 pm | 12:55 pm (52.5°) | 93.455 |
| 17 | 6:43 am ↑ (86°) | 7:06 pm ↑ (273°) | 12:22:55 | −2:36 | 5:12 am | 8:38 pm | 5:44 am | 8:05 pm | 6:16 am | 7:33 pm | 12:55 pm (52.1°) | 93.430 |
| 18 | 6:44 am ↑ (87°) | 7:05 pm ↑ (273°) | 12:20:19 | −2:36 | 5:13 am | 8:36 pm | 5:45 am | 8:03 pm | 6:17 am | 7:32 pm | 12:55 pm (51.8°) | 93.405 |
| 19 | 6:45 am ↑ (87°) | 7:03 pm ↑ (272°) | 12:17:43 | −2:36 | 5:14 am | 8:34 pm | 5:46 am | 8:02 pm | 6:18 am | 7:30 pm | 12:54 pm (51.4°) | 93.380 |
| 20 | 6:46 am ↑ (88°) | 7:01 pm ↑ (272°) | 12:15:06 | −2:36 | 5:15 am | 8:32 pm | 5:47 am | 8:00 pm | 6:19 am | 7:28 pm | 12:54 pm (51.0°) | 93.355 |
| 21 | 6:47 am ↑ (88°) | 7:00 pm ↑ (271°) | 12:12:30 | −2:36 | 5:16 am | 8:30 pm | 5:48 am | 7:58 pm | 6:20 am | 7:27 pm | 12:54 pm (50.6°) | 93.329 |
| 22 | 6:48 am ↑ (89°) | 6:58 pm ↑ (271°) | 12:09:53 | −2:36 | 5:17 am | 8:29 pm | 5:49 am | 7:56 pm | 6:21 am | 7:25 pm | 12:53 pm (50.2°) | 93.304 |
| 23 | 6:49 am ↑ (89°) | 6:56 pm ↑ (270°) | 12:07:16 | −2:36 | 5:18 am | 8:27 pm | 5:50 am | 7:55 pm | 6:22 am | 7:23 pm | 12:53 pm (49.8°) | 93.279 |
| 24 | 6:50 am ↑ (90°) | 6:55 pm ↑ (270°) | 12:04:40 | −2:36 | 5:19 am | 8:25 pm | 5:51 am | 7:53 pm | 6:23 am | 7:22 pm | 12:53 pm (49.4°) | 93.253 |
| 25 | 6:51 am ↑ (90°) | 6:53 pm ↑ (269°) | 12:02:03 | −2:36 | 5:20 am | 8:23 pm | 5:52 am | 7:51 pm | 6:24 am | 7:20 pm | 12:52 pm (49.0°) | 93.227 |
| 26 | 6:52 am ↑ (91°) | 6:51 pm ↑ (269°) | 11:59:26 | −2:36 | 5:21 am | 8:22 pm | 5:53 am | 7:50 pm | 6:25 am | 7:18 pm | 12:52 pm (48.7°) | 93.201 |
| 27 | 6:53 am ↑ (91°) | 6:50 pm ↑ (268°) | 11:56:50 | −2:36 | 5:22 am | 8:20 pm | 5:54 am | 7:48 pm | 6:26 am | 7:17 pm | 12:52 pm (48.3°) | 93.175 |
| 28 | 6:54 am ↑ (92°) | 6:48 pm ↑ (268°) | 11:54:13 | −2:36 | 5:23 am | 8:18 pm | 5:55 am | 7:46 pm | 6:27 am | 7:15 pm | 12:51 pm (47.9°) | 93.149 |
| 29 | 6:55 am ↑ (92°) | 6:46 pm ↑ (267°) | 11:51:36 | −2:36 | 5:24 am | 8:16 pm | 5:56 am | 7:45 pm | 6:28 am | 7:13 pm | 12:51 pm (47.5°) | 93.122 |
| 30 | 6:56 am ↑ (93°) | 6:45 pm ↑ (267°) | 11:49:00 | −2:36 | 5:25 am | 8:15 pm | 5:57 am | 7:43 pm | 6:29 am | 7:12 pm | 12:51 pm (47.1°) | 93.095 |
| * 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. | ||||||||||||
The September equinox (autumnal equinox) in Boulder is at 1:50 am on Monday, September 23, 2019.
Why is the day and night not exactly 12 hours on equinox?
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