Sunrise and sunset times in Boulder, UT
Check out today's and tomorrow's sunrise and sunset times in Boulder, UT, United States, as well as the whole calendar for May 2026.
Today
May 12, 2026 . Current time: 11:28:35 am
First light at 5:48:29 am
Sunrise time: 6:16:17 am
Sunset time: 8:27:50 pm
Last light at 8:55:38 pm
Day length: 14 hours, 11 minutes
8 hours, 59 minutes left for today's sunset in Boulder
Moon rose on May 12 at 02:39 AM
Moon will set on May 12 at 02:59 PMMoon phase: 🌘 Waning Crescent (22%)Tomorrow
May 13, 2026
First light at 5:47:30 am
Sunrise time: 6:15:23 am
Sunset time: 8:28:43 pm
Last light at 8:56:37 pm
Day length: 14 hours, 13 minutes
Tomorrow will be approximately 2 minutes longer than today in Boulder
Moon will rise on May 13 at 03:05 AM Moon will set on May 13 at 04:08 PMMoon phase: 🌘 Waning Crescent (9%)
- Boulder, Utah
- Latitude: 37.924442
- Longitude: -111.426109
- Time zone: Mountain Time MDT
Shortest day in Boulder, UT
The shortest day of the year will be in 8 months, during the winter solstice on December 21, 2026, with a daylight length of 9 hours and 34 minutes.Longest day in Boulder, UT
The longest day of the year will be in 1 month and 7 days, during the summer solstice on June 20, 2026, with a daylight length of 14 hours and 50 minutes.
May 2026 - Boulder, Utah - Sunrise and sunset calendar
Sunrise and sunset times, civil twilight start and end times as well as solar noon, and day length for every day of May in Boulder.
The day length increases by 49 minutes over the course of May 2026 in Boulder, UT - from 13 hours, 50 minutes on the first day to 14 hours, 39 minutes on the last day.
| Day | Twilight Start | Sunrise | Sunset | Twilight End | Day Length | Day Length Variation | Solar Noon
Time of day when the sun reaches its highest point in the sky.
|
Max Sun Altitude | Nautical Twilight Start | Nautical Twilight End | Astronomical Twilight Start | Astronomical Twilight End | Night Length
Calculated form this day's sunset to the next day's sunrise.
|
Moon phase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fri, May 1 | 6:00:50 am | 6:27:45 am | 8:17:47 pm | 8:44:42 pm | 13h 50m 2s | 13h 50m 2s | 1:22:46 pm | 53.2° | 5:26:30 am | 9:19:02 pm | 4:49:53 am | 9:55:38 pm | 10h 8m 49s | 🌕 (100%) |
| Sat, May 2 | 5:59:36 am | 6:26:36 am | 8:18:43 pm | 8:45:42 pm | 13h 52m 7s | 2m 5s | 1:22:39 pm | 53.5° | 5:25:09 am | 9:20:10 pm | 4:48:20 am | 9:56:58 pm | 10h 6m 45s | 🌖 (100%) |
| Sun, May 3 | 5:58:24 am | 6:25:28 am | 8:19:38 pm | 8:46:43 pm | 13h 54m 10s | 2m 3s | 1:22:33 pm | 53.8° | 5:23:48 am | 9:21:18 pm | 4:46:48 am | 9:58:19 pm | 10h 4m 44s | 🌖 (98%) |
| Mon, May 4 | 5:57:12 am | 6:24:22 am | 8:20:34 pm | 8:47:43 pm | 13h 56m 12s | 2m 2s | 1:22:28 pm | 54.1° | 5:22:29 am | 9:22:26 pm | 4:45:16 am | 9:59:39 pm | 10h 2m 42s | 🌖 (94%) |
| Tue, May 5 | 5:56:02 am | 6:23:16 am | 8:21:29 pm | 8:48:43 pm | 13h 58m 13s | 2m 1s | 1:22:23 pm | 54.4° | 5:21:11 am | 9:23:34 pm | 4:43:46 am | 10:00:59 pm | 10h 0m 44s | 🌖 (89%) |
| Wed, May 6 | 5:54:54 am | 6:22:13 am | 8:22:24 pm | 8:49:43 pm | 14h 0m 11s | 1m 58s | 1:22:18 pm | 54.6° | 5:19:54 am | 9:24:42 pm | 4:42:17 am | 10:02:20 pm | 9h 58m 46s | 🌖 (82%) |
| Thu, May 7 | 5:53:46 am | 6:21:10 am | 8:23:19 pm | 8:50:43 pm | 14h 2m 9s | 1m 58s | 1:22:14 pm | 54.9° | 5:18:38 am | 9:25:50 pm | 4:40:48 am | 10:03:40 pm | 9h 56m 50s | 🌖 (75%) |
| Fri, May 8 | 5:52:40 am | 6:20:09 am | 8:24:14 pm | 8:51:42 pm | 14h 4m 5s | 1m 56s | 1:22:11 pm | 55.2° | 5:17:24 am | 9:26:58 pm | 4:39:21 am | 10:05:01 pm | 9h 54m 55s | 🌖 (66%) |
| Sat, May 9 | 5:51:35 am | 6:19:09 am | 8:25:08 pm | 8:52:42 pm | 14h 5m 59s | 1m 54s | 1:22:08 pm | 55.4° | 5:16:11 am | 9:28:06 pm | 4:37:56 am | 10:06:21 pm | 9h 53m 2s | 🌖 (56%) |
| Sun, May 10 | 5:50:32 am | 6:18:10 am | 8:26:02 pm | 8:53:41 pm | 14h 7m 52s | 1m 53s | 1:22:06 pm | 55.7° | 5:14:59 am | 9:29:14 pm | 4:36:31 am | 10:07:41 pm | 9h 51m 11s | 🌗 (46%) |
| Mon, May 11 | 5:49:30 am | 6:17:13 am | 8:26:56 pm | 8:54:40 pm | 14h 9m 43s | 1m 51s | 1:22:05 pm | 56° | 5:13:49 am | 9:30:21 pm | 4:35:08 am | 10:09:01 pm | 9h 49m 21s | 🌘 (36%) |
| Tue, May 12 | 5:48:29 am | 6:16:17 am | 8:27:50 pm | 8:55:38 pm | 14h 11m 33s | 1m 50s | 1:22:04 pm | 56.2° | 5:12:40 am | 9:31:28 pm | 4:33:46 am | 10:10:21 pm | 9h 47m 33s | 🌘 (26%) |
| Wed, May 13 | 5:47:30 am | 6:15:23 am | 8:28:43 pm | 8:56:37 pm | 14h 13m 20s | 1m 47s | 1:22:03 pm | 56.5° | 5:11:32 am | 9:32:34 pm | 4:32:26 am | 10:11:41 pm | 9h 45m 47s | 🌘 (17%) |
| Thu, May 14 | 5:46:32 am | 6:14:30 am | 8:29:36 pm | 8:57:35 pm | 14h 15m 6s | 1m 46s | 1:22:03 pm | 56.7° | 5:10:26 am | 9:33:41 pm | 4:31:07 am | 10:13:00 pm | 9h 44m 3s | 🌘 (9%) |
| Fri, May 15 | 5:45:36 am | 6:13:39 am | 8:30:29 pm | 8:58:32 pm | 14h 16m 50s | 1m 44s | 1:22:04 pm | 56.9° | 5:09:22 am | 9:34:46 pm | 4:29:49 am | 10:14:19 pm | 9h 42m 20s | 🌘 (4%) |
| Sat, May 16 | 5:44:42 am | 6:12:49 am | 8:31:21 pm | 8:59:29 pm | 14h 18m 32s | 1m 42s | 1:22:05 pm | 57.2° | 5:08:19 am | 9:35:52 pm | 4:28:34 am | 10:15:37 pm | 9h 40m 40s | 🌘 (1%) |
| Sun, May 17 | 5:43:49 am | 6:12:01 am | 8:32:13 pm | 9:00:26 pm | 14h 20m 12s | 1m 40s | 1:22:07 pm | 57.4° | 5:07:18 am | 9:36:56 pm | 4:27:20 am | 10:16:55 pm | 9h 39m 2s | 🌑 (0%) |
| Mon, May 18 | 5:42:57 am | 6:11:15 am | 8:33:04 pm | 9:01:22 pm | 14h 21m 49s | 1m 37s | 1:22:10 pm | 57.6° | 5:06:18 am | 9:38:01 pm | 4:26:07 am | 10:18:12 pm | 9h 37m 26s | 🌒 (3%) |
| Tue, May 19 | 5:42:08 am | 6:10:30 am | 8:33:55 pm | 9:02:17 pm | 14h 23m 25s | 1m 36s | 1:22:13 pm | 57.8° | 5:05:21 am | 9:39:04 pm | 4:24:57 am | 10:19:29 pm | 9h 35m 52s | 🌒 (9%) |
| Wed, May 20 | 5:41:20 am | 6:09:47 am | 8:34:45 pm | 9:03:12 pm | 14h 24m 58s | 1m 33s | 1:22:16 pm | 58° | 5:04:25 am | 9:40:07 pm | 4:23:48 am | 10:20:44 pm | 9h 34m 20s | 🌒 (17%) |
| Thu, May 21 | 5:40:33 am | 6:09:05 am | 8:35:35 pm | 9:04:07 pm | 14h 26m 30s | 1m 32s | 1:22:20 pm | 58.2° | 5:03:30 am | 9:41:10 pm | 4:22:41 am | 10:21:59 pm | 9h 32m 50s | 🌒 (26%) |
| Fri, May 22 | 5:39:49 am | 6:08:25 am | 8:36:24 pm | 9:05:00 pm | 14h 27m 59s | 1m 29s | 1:22:25 pm | 58.4° | 5:02:38 am | 9:42:11 pm | 4:21:36 am | 10:23:13 pm | 9h 31m 23s | 🌒 (37%) |
| Sat, May 23 | 5:39:06 am | 6:07:47 am | 8:37:13 pm | 9:05:53 pm | 14h 29m 26s | 1m 27s | 1:22:30 pm | 58.6° | 5:01:48 am | 9:43:12 pm | 4:20:33 am | 10:24:27 pm | 9h 29m 57s | 🌓 (48%) |
| Sun, May 24 | 5:38:25 am | 6:07:10 am | 8:38:00 pm | 9:06:45 pm | 14h 30m 50s | 1m 24s | 1:22:35 pm | 58.8° | 5:00:59 am | 9:44:11 pm | 4:19:32 am | 10:25:39 pm | 9h 28m 35s | 🌔 (58%) |
| Mon, May 25 | 5:37:46 am | 6:06:35 am | 8:38:47 pm | 9:07:37 pm | 14h 32m 12s | 1m 22s | 1:22:41 pm | 59° | 5:00:12 am | 9:45:10 pm | 4:18:33 am | 10:26:50 pm | 9h 27m 15s | 🌔 (68%) |
| Tue, May 26 | 5:37:09 am | 6:06:02 am | 8:39:33 pm | 9:08:27 pm | 14h 33m 31s | 1m 19s | 1:22:48 pm | 59.2° | 4:59:28 am | 9:46:08 pm | 4:17:36 am | 10:27:59 pm | 9h 25m 58s | 🌔 (77%) |
| Wed, May 27 | 5:36:33 am | 6:05:31 am | 8:40:19 pm | 9:09:17 pm | 14h 34m 48s | 1m 17s | 1:22:55 pm | 59.3° | 4:58:45 am | 9:47:05 pm | 4:16:42 am | 10:29:08 pm | 9h 24m 42s | 🌔 (85%) |
| Thu, May 28 | 5:36:00 am | 6:05:01 am | 8:41:04 pm | 9:10:05 pm | 14h 36m 3s | 1m 15s | 1:23:02 pm | 59.5° | 4:58:04 am | 9:48:00 pm | 4:15:50 am | 10:30:15 pm | 9h 23m 29s | 🌔 (91%) |
| Fri, May 29 | 5:35:28 am | 6:04:33 am | 8:41:47 pm | 9:10:53 pm | 14h 37m 14s | 1m 11s | 1:23:10 pm | 59.6° | 4:57:26 am | 9:48:55 pm | 4:15:00 am | 10:31:21 pm | 9h 22m 20s | 🌔 (96%) |
| Sat, May 30 | 5:34:58 am | 6:04:07 am | 8:42:30 pm | 9:11:39 pm | 14h 38m 23s | 1m 9s | 1:23:19 pm | 59.8° | 4:56:49 am | 9:49:48 pm | 4:14:12 am | 10:32:25 pm | 9h 21m 13s | 🌔 (99%) |
| Sun, May 31 | 5:34:30 am | 6:03:43 am | 8:43:12 pm | 9:12:25 pm | 14h 39m 29s | 1m 6s | 1:23:27 pm | 59.9° | 4:56:15 am | 9:50:40 pm | 4:13:27 am | 10:33:28 pm | 9h 20m 9s | 🌕 (100%) |
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Sunrise and Sunset photos in Boulder, UT
Enjoy this beautiful gallery of images of the sunset and sunrise at Boulder, UT. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Boulder, UT - 2026
The followin graph shows sunrise and sunset times in Boulder, UT for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Boulder, UT.