Sunrise and sunset times in Thornton, CO
Check out today's and tomorrow's sunrise and sunset times in Thornton, CO, United States, as well as the whole calendar for May 2025.
Today
May 20, 2025 . Current time: 10:38:21 am
First light at 5:09:05 am
Sunrise time: 5:38:39 am
Sunset time: 8:14:17 pm
Last light at 8:43:50 pm
Day length: 14 hours, 35 minutes
9 hours, 35 minutes left for today's sunset in Thornton
Tomorrow
May 21, 2025
First light at 5:08:15 am
Sunrise time: 5:37:54 am
Sunset time: 8:15:10 pm
Last light at 8:44:48 pm
Day length: 14 hours, 37 minutes
Tomorrow will be approximately 2 minutes longer than today in Thornton

- Thornton, Colorado
- Latitude: 39.868042
- Longitude: -104.971924
- Time zone: Mountain Time MDT
Shortest day in Thornton, CO
The shortest day of the year will be in 7 months, during the winter solstice on December 21, 2025, with a daylight length of 9 hours and 23 minutes.Longest day in Thornton, CO
The longest day of the year will be in 30 days, during the summer solstice on June 20, 2025, with a daylight length of 15 hours and 3 minutes.May 2025 - Thornton, Colorado - 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 Thornton.
The day length increases by 53 minutes over the course of May 2025 in Thornton, CO - from 13 hours, 58 minutes on the first day to 14 hours, 51 minutes on the last day.
Day | Twilight Start | Sunrise | Sunset | Twilight End | Day Length | Day Length Variation | Solar Noon
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Max Sun Altitude | Nautical Twilight Start | Nautical Twilight End | Astronomical Twilight Start | Astronomical Twilight End | Night Length
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Moon phase |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thu, May 1 | 5:30:01 am | 5:57:52 am | 7:55:58 pm | 8:23:49 pm | 13h 58m 6s | 13h 58m 6s | 12:56:55 pm | 55.2° | 4:54:19 am | 8:59:32 pm | 4:15:50 am | 9:38:00 pm | 10h 0m 41s | 🌒 (17%) |
Fri, May 2 | 5:28:43 am | 5:56:39 am | 7:56:59 pm | 8:24:55 pm | 14h 0m 20s | 2m 14s | 12:56:49 pm | 55.5° | 4:52:51 am | 9:00:46 pm | 4:14:09 am | 9:39:29 pm | 9h 58m 28s | 🌒 (26%) |
Sat, May 3 | 5:27:25 am | 5:55:27 am | 7:57:59 pm | 8:26:00 pm | 14h 2m 32s | 2m 12s | 12:56:43 pm | 55.8° | 4:51:25 am | 9:02:01 pm | 4:12:28 am | 9:40:58 pm | 9h 56m 17s | 🌒 (36%) |
Sun, May 4 | 5:26:09 am | 5:54:16 am | 7:58:59 pm | 8:27:06 pm | 14h 4m 43s | 2m 11s | 12:56:37 pm | 56.1° | 4:50:00 am | 9:03:15 pm | 4:10:48 am | 9:42:26 pm | 9h 54m 7s | 🌓 (46%) |
Mon, May 5 | 5:24:54 am | 5:53:06 am | 7:59:59 pm | 8:28:11 pm | 14h 6m 53s | 2m 10s | 12:56:33 pm | 56.4° | 4:48:35 am | 9:04:30 pm | 4:09:10 am | 9:43:55 pm | 9h 51m 59s | 🌔 (57%) |
Tue, May 6 | 5:23:41 am | 5:51:58 am | 8:00:58 pm | 8:29:16 pm | 14h 9m 0s | 2m 7s | 12:56:28 pm | 56.6° | 4:47:12 am | 9:05:44 pm | 4:07:32 am | 9:45:25 pm | 9h 49m 53s | 🌔 (66%) |
Wed, May 7 | 5:22:28 am | 5:50:51 am | 8:01:58 pm | 8:30:21 pm | 14h 11m 7s | 2m 7s | 12:56:25 pm | 56.9° | 4:45:51 am | 9:06:58 pm | 4:05:55 am | 9:46:54 pm | 9h 47m 48s | 🌔 (75%) |
Thu, May 8 | 5:21:18 am | 5:49:46 am | 8:02:57 pm | 8:31:25 pm | 14h 13m 11s | 2m 4s | 12:56:21 pm | 57.2° | 4:44:30 am | 9:08:12 pm | 4:04:20 am | 9:48:23 pm | 9h 45m 45s | 🌔 (83%) |
Fri, May 9 | 5:20:08 am | 5:48:42 am | 8:03:56 pm | 8:32:29 pm | 14h 15m 14s | 2m 3s | 12:56:19 pm | 57.4° | 4:43:11 am | 9:09:26 pm | 4:02:46 am | 9:49:52 pm | 9h 43m 43s | 🌔 (90%) |
Sat, May 10 | 5:19:00 am | 5:47:39 am | 8:04:54 pm | 8:33:34 pm | 14h 17m 15s | 2m 1s | 12:56:17 pm | 57.7° | 4:41:54 am | 9:10:40 pm | 4:01:13 am | 9:51:21 pm | 9h 41m 44s | 🌔 (95%) |
Sun, May 11 | 5:17:53 am | 5:46:38 am | 8:05:52 pm | 8:34:37 pm | 14h 19m 14s | 1m 59s | 12:56:15 pm | 58° | 4:40:38 am | 9:11:53 pm | 3:59:41 am | 9:52:49 pm | 9h 39m 47s | 🌔 (98%) |
Mon, May 12 | 5:16:48 am | 5:45:39 am | 8:06:50 pm | 8:35:41 pm | 14h 21m 11s | 1m 57s | 12:56:14 pm | 58.2° | 4:39:23 am | 9:13:06 pm | 3:58:11 am | 9:54:18 pm | 9h 37m 50s | 🌕 (100%) |
Tue, May 13 | 5:15:45 am | 5:44:40 am | 8:07:48 pm | 8:36:44 pm | 14h 23m 8s | 1m 57s | 12:56:14 pm | 58.5° | 4:38:10 am | 9:14:19 pm | 3:56:42 am | 9:55:46 pm | 9h 35m 56s | 🌖 (100%) |
Wed, May 14 | 5:14:43 am | 5:43:44 am | 8:08:45 pm | 8:37:46 pm | 14h 25m 1s | 1m 53s | 12:56:14 pm | 58.7° | 4:36:58 am | 9:15:31 pm | 3:55:15 am | 9:57:14 pm | 9h 34m 4s | 🌖 (98%) |
Thu, May 15 | 5:13:42 am | 5:42:49 am | 8:09:42 pm | 8:38:48 pm | 14h 26m 53s | 1m 52s | 12:56:15 pm | 58.9° | 4:35:48 am | 9:16:42 pm | 3:53:50 am | 9:58:41 pm | 9h 32m 14s | 🌖 (94%) |
Fri, May 16 | 5:12:43 am | 5:41:56 am | 8:10:38 pm | 8:39:50 pm | 14h 28m 42s | 1m 49s | 12:56:17 pm | 59.2° | 4:34:40 am | 9:17:53 pm | 3:52:26 am | 10:00:08 pm | 9h 30m 26s | 🌖 (89%) |
Sat, May 17 | 5:11:46 am | 5:41:04 am | 8:11:33 pm | 8:40:51 pm | 14h 30m 29s | 1m 47s | 12:56:19 pm | 59.4° | 4:33:33 am | 9:19:04 pm | 3:51:03 am | 10:01:34 pm | 9h 28m 41s | 🌖 (81%) |
Sun, May 18 | 5:10:51 am | 5:40:14 am | 8:12:28 pm | 8:41:51 pm | 14h 32m 14s | 1m 45s | 12:56:21 pm | 59.6° | 4:32:28 am | 9:20:14 pm | 3:49:43 am | 10:03:00 pm | 9h 26m 58s | 🌖 (73%) |
Mon, May 19 | 5:09:57 am | 5:39:26 am | 8:13:23 pm | 8:42:51 pm | 14h 33m 57s | 1m 43s | 12:56:24 pm | 59.8° | 4:31:25 am | 9:21:23 pm | 3:48:24 am | 10:04:24 pm | 9h 25m 16s | 🌖 (63%) |
Tue, May 20 | 5:09:05 am | 5:38:39 am | 8:14:17 pm | 8:43:50 pm | 14h 35m 38s | 1m 41s | 12:56:28 pm | 60° | 4:30:24 am | 9:22:31 pm | 3:47:07 am | 10:05:48 pm | 9h 23m 37s | 🌗 (53%) |
Wed, May 21 | 5:08:15 am | 5:37:54 am | 8:15:10 pm | 8:44:48 pm | 14h 37m 16s | 1m 38s | 12:56:32 pm | 60.2° | 4:29:25 am | 9:23:39 pm | 3:45:52 am | 10:07:12 pm | 9h 22m 1s | 🌘 (42%) |
Thu, May 22 | 5:07:27 am | 5:37:11 am | 8:16:02 pm | 8:45:46 pm | 14h 38m 51s | 1m 35s | 12:56:37 pm | 60.4° | 4:28:28 am | 9:24:45 pm | 3:44:39 am | 10:08:34 pm | 9h 20m 28s | 🌘 (31%) |
Fri, May 23 | 5:06:41 am | 5:36:30 am | 8:16:54 pm | 8:46:43 pm | 14h 40m 24s | 1m 33s | 12:56:42 pm | 60.6° | 4:27:32 am | 9:25:51 pm | 3:43:29 am | 10:09:55 pm | 9h 18m 56s | 🌘 (21%) |
Sat, May 24 | 5:05:56 am | 5:35:50 am | 8:17:45 pm | 8:47:39 pm | 14h 41m 55s | 1m 31s | 12:56:47 pm | 60.8° | 4:26:39 am | 9:26:56 pm | 3:42:20 am | 10:11:15 pm | 9h 17m 27s | 🌘 (12%) |
Sun, May 25 | 5:05:14 am | 5:35:12 am | 8:18:35 pm | 8:48:34 pm | 14h 43m 23s | 1m 28s | 12:56:54 pm | 61° | 4:25:48 am | 9:27:59 pm | 3:41:14 am | 10:12:33 pm | 9h 16m 1s | 🌘 (5%) |
Mon, May 26 | 5:04:33 am | 5:34:36 am | 8:19:24 pm | 8:49:28 pm | 14h 44m 48s | 1m 25s | 12:57:00 pm | 61.1° | 4:24:58 am | 9:29:02 pm | 3:40:10 am | 10:13:51 pm | 9h 14m 38s | 🌘 (1%) |
Tue, May 27 | 5:03:54 am | 5:34:02 am | 8:20:12 pm | 8:50:20 pm | 14h 46m 10s | 1m 22s | 12:57:07 pm | 61.3° | 4:24:11 am | 9:30:03 pm | 3:39:08 am | 10:15:07 pm | 9h 13m 18s | 🌑 (0%) |
Wed, May 28 | 5:03:18 am | 5:33:30 am | 8:21:00 pm | 8:51:12 pm | 14h 47m 30s | 1m 20s | 12:57:15 pm | 61.5° | 4:23:27 am | 9:31:03 pm | 3:38:09 am | 10:16:21 pm | 9h 12m 0s | 🌒 (2%) |
Thu, May 29 | 5:02:43 am | 5:33:00 am | 8:21:46 pm | 8:52:03 pm | 14h 48m 46s | 1m 16s | 12:57:23 pm | 61.6° | 4:22:44 am | 9:32:02 pm | 3:37:12 am | 10:17:34 pm | 9h 10m 45s | 🌒 (6%) |
Fri, May 30 | 5:02:10 am | 5:32:31 am | 8:22:32 pm | 8:52:53 pm | 14h 50m 1s | 1m 15s | 12:57:31 pm | 61.8° | 4:22:03 am | 9:32:59 pm | 3:36:18 am | 10:18:45 pm | 9h 9m 33s | 🌒 (13%) |
Sat, May 31 | 5:01:39 am | 5:32:05 am | 8:23:16 pm | 8:53:41 pm | 14h 51m 11s | 1m 10s | 12:57:40 pm | 61.9° | 4:21:25 am | 9:33:55 pm | 3:35:26 am | 10:19:54 pm | 9h 8m 24s | 🌒 (22%) |
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Sunrise and Sunset photos in Thornton, CO
Enjoy this beautiful gallery of images of the sunset and sunrise at Thornton, CO. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Thornton, CO - 2025
The followin graph shows sunrise and sunset times in Thornton, CO for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Thornton, CO.