Daylight
7:07 am – 4:35 pm
9 hours, 28 minutes
| Current Time: | Dec 5, 2025 at 10:49:18 am |
|---|---|
| Sun Direction: | ↑ 164° South |
| Sun Altitude: | 25.9° |
| Sun Distance: | 91.599 million mi |
| Next Solstice: | Dec 21, 2025 8:03 am (Winter) |
| Sunrise Today: | 7:07 am↑ 119° Southeast |
| Sunset Today: | 4:35 pm↑ 241° Southwest |
2025 Sun Graph for Boulder
May 2025 — Sun in Boulder
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| 2025 | Sunrise/Sunset | Daylength | Astronomical Twilight | Nautical Twilight | Civil Twilight | Solar Noon | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May | Sunrise | Sunset | Length | Diff. | Start | End | Start | End | Start | End | Time | Mil. mi |
| 1 | 6:00 am ↑ (69°) | 7:56 pm ↑ (291°) | 13:55:35 | +2:15 | 4:17 am | 9:40 pm | 4:55 am | 9:01 pm | 5:31 am | 8:25 pm | 12:58 pm (65.3°) | 93.672 |
| 2 | 5:59 am ↑ (69°) | 7:57 pm ↑ (291°) | 13:57:50 | +2:14 | 4:15 am | 9:41 pm | 4:54 am | 9:02 pm | 5:29 am | 8:26 pm | 12:57 pm (65.6°) | 93.695 |
| 3 | 5:58 am ↑ (68°) | 7:58 pm ↑ (292°) | 14:00:02 | +2:12 | 4:13 am | 9:43 pm | 4:52 am | 9:04 pm | 5:28 am | 8:27 pm | 12:57 pm (65.9°) | 93.717 |
| 4 | 5:57 am ↑ (68°) | 7:59 pm ↑ (292°) | 14:02:14 | +2:11 | 4:11 am | 9:44 pm | 4:51 am | 9:05 pm | 5:27 am | 8:28 pm | 12:57 pm (66.2°) | 93.739 |
| 5 | 5:55 am ↑ (68°) | 8:00 pm ↑ (293°) | 14:04:24 | +2:09 | 4:10 am | 9:46 pm | 4:49 am | 9:06 pm | 5:26 am | 8:30 pm | 12:57 pm (66.5°) | 93.762 |
| 6 | 5:54 am ↑ (67°) | 8:01 pm ↑ (293°) | 14:06:32 | +2:08 | 4:08 am | 9:47 pm | 4:48 am | 9:07 pm | 5:24 am | 8:31 pm | 12:57 pm (66.8°) | 93.783 |
| 7 | 5:53 am ↑ (67°) | 8:02 pm ↑ (293°) | 14:08:39 | +2:06 | 4:07 am | 9:49 pm | 4:46 am | 9:09 pm | 5:23 am | 8:32 pm | 12:57 pm (67.0°) | 93.805 |
| 8 | 5:52 am ↑ (66°) | 8:03 pm ↑ (294°) | 14:10:44 | +2:05 | 4:05 am | 9:50 pm | 4:45 am | 9:10 pm | 5:22 am | 8:33 pm | 12:57 pm (67.3°) | 93.826 |
| 9 | 5:51 am ↑ (66°) | 8:04 pm ↑ (294°) | 14:12:47 | +2:03 | 4:03 am | 9:52 pm | 4:44 am | 9:11 pm | 5:21 am | 8:34 pm | 12:57 pm (67.6°) | 93.848 |
| 10 | 5:50 am ↑ (66°) | 8:05 pm ↑ (294°) | 14:14:49 | +2:01 | 4:02 am | 9:53 pm | 4:42 am | 9:12 pm | 5:20 am | 8:35 pm | 12:57 pm (67.8°) | 93.869 |
| 11 | 5:49 am ↑ (65°) | 8:06 pm ↑ (295°) | 14:16:49 | +1:59 | 4:00 am | 9:55 pm | 4:41 am | 9:14 pm | 5:19 am | 8:36 pm | 12:57 pm (68.1°) | 93.890 |
| 12 | 5:48 am ↑ (65°) | 8:07 pm ↑ (295°) | 14:18:47 | +1:57 | 3:59 am | 9:56 pm | 4:40 am | 9:15 pm | 5:17 am | 8:37 pm | 12:57 pm (68.3°) | 93.911 |
| 13 | 5:47 am ↑ (65°) | 8:08 pm ↑ (295°) | 14:20:43 | +1:56 | 3:57 am | 9:58 pm | 4:39 am | 9:16 pm | 5:16 am | 8:38 pm | 12:57 pm (68.6°) | 93.931 |
| 14 | 5:46 am ↑ (64°) | 8:09 pm ↑ (296°) | 14:22:37 | +1:54 | 3:56 am | 9:59 pm | 4:37 am | 9:17 pm | 5:15 am | 8:39 pm | 12:57 pm (68.8°) | 93.952 |
| 15 | 5:45 am ↑ (64°) | 8:09 pm ↑ (296°) | 14:24:29 | +1:51 | 3:54 am | 10:01 pm | 4:36 am | 9:18 pm | 5:14 am | 8:40 pm | 12:57 pm (69.1°) | 93.972 |
| 16 | 5:44 am ↑ (64°) | 8:10 pm ↑ (296°) | 14:26:19 | +1:49 | 3:53 am | 10:02 pm | 4:35 am | 9:20 pm | 5:13 am | 8:41 pm | 12:57 pm (69.3°) | 93.992 |
| 17 | 5:43 am ↑ (63°) | 8:11 pm ↑ (297°) | 14:28:07 | +1:47 | 3:51 am | 10:04 pm | 4:34 am | 9:21 pm | 5:12 am | 8:42 pm | 12:57 pm (69.5°) | 94.012 |
| 18 | 5:42 am ↑ (63°) | 8:12 pm ↑ (297°) | 14:29:52 | +1:45 | 3:50 am | 10:05 pm | 4:33 am | 9:22 pm | 5:11 am | 8:43 pm | 12:57 pm (69.7°) | 94.032 |
| 19 | 5:42 am ↑ (63°) | 8:13 pm ↑ (297°) | 14:31:36 | +1:43 | 3:49 am | 10:06 pm | 4:32 am | 9:23 pm | 5:10 am | 8:44 pm | 12:57 pm (69.9°) | 94.051 |
| 20 | 5:41 am ↑ (63°) | 8:14 pm ↑ (298°) | 14:33:17 | +1:40 | 3:47 am | 10:08 pm | 4:31 am | 9:24 pm | 5:10 am | 8:45 pm | 12:57 pm (70.1°) | 94.070 |
| 21 | 5:40 am ↑ (62°) | 8:15 pm ↑ (298°) | 14:34:55 | +1:38 | 3:46 am | 10:09 pm | 4:30 am | 9:25 pm | 5:09 am | 8:46 pm | 12:57 pm (70.3°) | 94.089 |
| 22 | 5:39 am ↑ (62°) | 8:16 pm ↑ (298°) | 14:36:31 | +1:36 | 3:45 am | 10:11 pm | 4:29 am | 9:26 pm | 5:08 am | 8:47 pm | 12:57 pm (70.5°) | 94.107 |
| 23 | 5:39 am ↑ (62°) | 8:17 pm ↑ (298°) | 14:38:05 | +1:33 | 3:44 am | 10:12 pm | 4:28 am | 9:28 pm | 5:07 am | 8:48 pm | 12:57 pm (70.7°) | 94.125 |
| 24 | 5:38 am ↑ (61°) | 8:17 pm ↑ (299°) | 14:39:36 | +1:30 | 3:43 am | 10:13 pm | 4:27 am | 9:29 pm | 5:06 am | 8:49 pm | 12:57 pm (70.9°) | 94.142 |
| 25 | 5:37 am ↑ (61°) | 8:18 pm ↑ (299°) | 14:41:04 | +1:28 | 3:41 am | 10:15 pm | 4:26 am | 9:30 pm | 5:06 am | 8:50 pm | 12:58 pm (71.1°) | 94.159 |
| 26 | 5:37 am ↑ (61°) | 8:19 pm ↑ (299°) | 14:42:30 | +1:25 | 3:40 am | 10:16 pm | 4:25 am | 9:31 pm | 5:05 am | 8:51 pm | 12:58 pm (71.3°) | 94.176 |
| 27 | 5:36 am ↑ (61°) | 8:20 pm ↑ (299°) | 14:43:52 | +1:22 | 3:39 am | 10:17 pm | 4:24 am | 9:32 pm | 5:04 am | 8:52 pm | 12:58 pm (71.4°) | 94.192 |
| 28 | 5:36 am ↑ (61°) | 8:21 pm ↑ (300°) | 14:45:12 | +1:19 | 3:38 am | 10:18 pm | 4:24 am | 9:33 pm | 5:04 am | 8:53 pm | 12:58 pm (71.6°) | 94.208 |
| 29 | 5:35 am ↑ (60°) | 8:22 pm ↑ (300°) | 14:46:29 | +1:17 | 3:37 am | 10:20 pm | 4:23 am | 9:34 pm | 5:03 am | 8:54 pm | 12:58 pm (71.7°) | 94.223 |
| 30 | 5:35 am ↑ (60°) | 8:22 pm ↑ (300°) | 14:47:43 | +1:14 | 3:36 am | 10:21 pm | 4:22 am | 9:35 pm | 5:03 am | 8:54 pm | 12:58 pm (71.9°) | 94.237 |
| 31 | 5:34 am ↑ (60°) | 8:23 pm ↑ (300°) | 14:48:55 | +1:11 | 3:35 am | 10:22 pm | 4:22 am | 9:36 pm | 5:02 am | 8:55 pm | 12:58 pm (72.0°) | 94.251 |
| * 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. | ||||||||||||
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