Sunrise and sunset times in Casper, WY
Check out today's and tomorrow's sunrise and sunset times in Casper, WY, United States, as well as the whole calendar for May 2026.
Today
May 13, 2026 . Current time: 9:59:16 am
First light at 5:11:40 am
Sunrise time: 5:42:25 am
Sunset time: 8:20:47 pm
Last light at 8:51:33 pm
Day length: 14 hours, 38 minutes
10 hours, 21 minutes left for today's sunset in Casper
Moon rose on May 13 at 02:41 AM
Moon will set on May 13 at 03:52 PMMoon phase: 🌘 Waning Crescent (14%)Tomorrow
May 14, 2026
First light at 5:10:29 am
Sunrise time: 5:41:21 am
Sunset time: 8:21:51 pm
Last light at 8:52:43 pm
Day length: 14 hours, 40 minutes
Tomorrow will be approximately 2 minutes longer than today in Casper
Moon will rise on May 14 at 03:04 AM Moon will set on May 14 at 05:10 PMMoon phase: 🌘 Waning Crescent (4%)
- Casper, Wyoming
- Latitude: 42.866631
- Longitude: -106.313080
- Time zone: Mountain Time MDT
Shortest day in Casper, WY
The shortest day of the year will be in around 8 months, during the winter solstice on December 21, 2026, with a daylight length of 9 hours and 4 minutes.Longest day in Casper, WY
The longest day of the year will be in 1 month and 6 days, during the summer solstice on June 20, 2026, with a daylight length of 15 hours and 24 minutes.
May 2026 - Casper, Wyoming - 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 Casper.
The day length increases by 59 minutes over the course of May 2026 in Casper, WY - from 14 hours, 10 minutes on the first day to 15 hours, 10 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 | 5:27:45 am | 5:57:12 am | 8:07:25 pm | 8:36:53 pm | 14h 10m 13s | 14h 10m 13s | 1:02:19 pm | 58.1° | 4:49:37 am | 9:15:01 pm | 4:07:44 am | 9:56:54 pm | 9h 48m 26s | 🌕 (100%) |
| Sat, May 2 | 5:26:17 am | 5:55:51 am | 8:08:34 pm | 8:38:07 pm | 14h 12m 43s | 2m 30s | 1:02:12 pm | 58.4° | 4:47:58 am | 9:16:27 pm | 4:05:46 am | 9:58:38 pm | 9h 45m 56s | 🌖 (100%) |
| Sun, May 3 | 5:24:50 am | 5:54:30 am | 8:09:42 pm | 8:39:22 pm | 14h 15m 12s | 2m 29s | 1:02:06 pm | 58.7° | 4:46:20 am | 9:17:53 pm | 4:03:49 am | 10:00:23 pm | 9h 43m 29s | 🌖 (98%) |
| Mon, May 4 | 5:23:25 am | 5:53:11 am | 8:10:50 pm | 8:40:36 pm | 14h 17m 39s | 2m 27s | 1:02:01 pm | 59° | 4:44:43 am | 9:19:18 pm | 4:01:53 am | 10:02:08 pm | 9h 41m 4s | 🌖 (94%) |
| Tue, May 5 | 5:22:01 am | 5:51:54 am | 8:11:57 pm | 8:41:50 pm | 14h 20m 3s | 2m 24s | 1:01:56 pm | 59.3° | 4:43:07 am | 9:20:44 pm | 3:59:58 am | 10:03:53 pm | 9h 38m 41s | 🌖 (89%) |
| Wed, May 6 | 5:20:38 am | 5:50:38 am | 8:13:05 pm | 8:43:04 pm | 14h 22m 27s | 2m 24s | 1:01:51 pm | 59.6° | 4:41:33 am | 9:22:10 pm | 3:58:04 am | 10:05:39 pm | 9h 36m 18s | 🌖 (82%) |
| Thu, May 7 | 5:19:17 am | 5:49:23 am | 8:14:12 pm | 8:44:18 pm | 14h 24m 49s | 2m 22s | 1:01:47 pm | 59.8° | 4:39:59 am | 9:23:35 pm | 3:56:10 am | 10:07:24 pm | 9h 33m 57s | 🌖 (75%) |
| Fri, May 8 | 5:17:57 am | 5:48:09 am | 8:15:19 pm | 8:45:31 pm | 14h 27m 10s | 2m 21s | 1:01:44 pm | 60.1° | 4:38:27 am | 9:25:01 pm | 3:54:18 am | 10:09:10 pm | 9h 31m 38s | 🌖 (66%) |
| Sat, May 9 | 5:16:38 am | 5:46:57 am | 8:16:25 pm | 8:46:44 pm | 14h 29m 28s | 2m 18s | 1:01:41 pm | 60.4° | 4:36:57 am | 9:26:26 pm | 3:52:27 am | 10:10:56 pm | 9h 29m 22s | 🌖 (56%) |
| Sun, May 10 | 5:15:21 am | 5:45:47 am | 8:17:31 pm | 8:47:57 pm | 14h 31m 44s | 2m 16s | 1:01:39 pm | 60.6° | 4:35:28 am | 9:27:50 pm | 3:50:37 am | 10:12:42 pm | 9h 27m 7s | 🌗 (46%) |
| Mon, May 11 | 5:14:06 am | 5:44:38 am | 8:18:37 pm | 8:49:09 pm | 14h 33m 59s | 2m 15s | 1:01:38 pm | 60.9° | 4:34:00 am | 9:29:15 pm | 3:48:48 am | 10:14:27 pm | 9h 24m 54s | 🌘 (36%) |
| Tue, May 12 | 5:12:52 am | 5:43:31 am | 8:19:42 pm | 8:50:21 pm | 14h 36m 11s | 2m 12s | 1:01:37 pm | 61.2° | 4:32:34 am | 9:30:39 pm | 3:47:00 am | 10:16:13 pm | 9h 22m 43s | 🌘 (26%) |
| Wed, May 13 | 5:11:40 am | 5:42:25 am | 8:20:47 pm | 8:51:33 pm | 14h 38m 22s | 2m 11s | 1:01:36 pm | 61.4° | 4:31:10 am | 9:32:03 pm | 3:45:14 am | 10:17:58 pm | 9h 20m 34s | 🌘 (17%) |
| Thu, May 14 | 5:10:29 am | 5:41:21 am | 8:21:51 pm | 8:52:43 pm | 14h 40m 30s | 2m 8s | 1:01:36 pm | 61.6° | 4:29:47 am | 9:33:26 pm | 3:43:29 am | 10:19:44 pm | 9h 18m 28s | 🌘 (9%) |
| Fri, May 15 | 5:09:20 am | 5:40:19 am | 8:22:55 pm | 8:53:54 pm | 14h 42m 36s | 2m 6s | 1:01:37 pm | 61.9° | 4:28:26 am | 9:34:48 pm | 3:41:46 am | 10:21:28 pm | 9h 16m 23s | 🌘 (4%) |
| Sat, May 16 | 5:08:13 am | 5:39:18 am | 8:23:58 pm | 8:55:04 pm | 14h 44m 40s | 2m 4s | 1:01:38 pm | 62.1° | 4:27:06 am | 9:36:10 pm | 3:40:04 am | 10:23:13 pm | 9h 14m 22s | 🌘 (1%) |
| Sun, May 17 | 5:07:08 am | 5:38:20 am | 8:25:00 pm | 8:56:13 pm | 14h 46m 40s | 2m 0s | 1:01:40 pm | 62.3° | 4:25:49 am | 9:37:31 pm | 3:38:24 am | 10:24:56 pm | 9h 12m 23s | 🌑 (0%) |
| Mon, May 18 | 5:06:04 am | 5:37:23 am | 8:26:02 pm | 8:57:21 pm | 14h 48m 39s | 1m 59s | 1:01:42 pm | 62.5° | 4:24:33 am | 9:38:52 pm | 3:36:45 am | 10:26:39 pm | 9h 10m 25s | 🌒 (3%) |
| Tue, May 19 | 5:05:02 am | 5:36:27 am | 8:27:03 pm | 8:58:29 pm | 14h 50m 36s | 1m 57s | 1:01:45 pm | 62.8° | 4:23:19 am | 9:40:12 pm | 3:35:09 am | 10:28:22 pm | 9h 8m 31s | 🌒 (9%) |
| Wed, May 20 | 5:04:02 am | 5:35:34 am | 8:28:04 pm | 8:59:35 pm | 14h 52m 30s | 1m 54s | 1:01:49 pm | 63° | 4:22:07 am | 9:41:31 pm | 3:33:34 am | 10:30:03 pm | 9h 6m 38s | 🌒 (17%) |
| Thu, May 21 | 5:03:04 am | 5:34:42 am | 8:29:03 pm | 9:00:41 pm | 14h 54m 21s | 1m 51s | 1:01:53 pm | 63.2° | 4:20:57 am | 9:42:49 pm | 3:32:02 am | 10:31:44 pm | 9h 4m 50s | 🌒 (26%) |
| Fri, May 22 | 5:02:08 am | 5:33:53 am | 8:30:02 pm | 9:01:46 pm | 14h 56m 9s | 1m 48s | 1:01:57 pm | 63.4° | 4:19:49 am | 9:44:05 pm | 3:30:31 am | 10:33:24 pm | 9h 3m 3s | 🌒 (37%) |
| Sat, May 23 | 5:01:14 am | 5:33:05 am | 8:31:00 pm | 9:02:50 pm | 14h 57m 55s | 1m 46s | 1:02:02 pm | 63.6° | 4:18:44 am | 9:45:21 pm | 3:29:02 am | 10:35:02 pm | 9h 1m 19s | 🌓 (48%) |
| Sun, May 24 | 5:00:23 am | 5:32:19 am | 8:31:57 pm | 9:03:53 pm | 14h 59m 38s | 1m 43s | 1:02:08 pm | 63.7° | 4:17:40 am | 9:46:36 pm | 3:27:36 am | 10:36:40 pm | 8h 59m 38s | 🌔 (58%) |
| Mon, May 25 | 4:59:33 am | 5:31:35 am | 8:32:53 pm | 9:04:55 pm | 15h 1m 18s | 1m 40s | 1:02:14 pm | 63.9° | 4:16:39 am | 9:47:49 pm | 3:26:13 am | 10:38:16 pm | 8h 58m 0s | 🌔 (68%) |
| Tue, May 26 | 4:58:45 am | 5:30:53 am | 8:33:48 pm | 9:05:56 pm | 15h 2m 55s | 1m 37s | 1:02:21 pm | 64.1° | 4:15:40 am | 9:49:01 pm | 3:24:51 am | 10:39:50 pm | 8h 56m 26s | 🌔 (77%) |
| Wed, May 27 | 4:57:59 am | 5:30:14 am | 8:34:42 pm | 9:06:56 pm | 15h 4m 28s | 1m 33s | 1:02:28 pm | 64.3° | 4:14:43 am | 9:50:12 pm | 3:23:32 am | 10:41:23 pm | 8h 54m 54s | 🌔 (85%) |
| Thu, May 28 | 4:57:16 am | 5:29:36 am | 8:35:34 pm | 9:07:54 pm | 15h 5m 58s | 1m 30s | 1:02:35 pm | 64.4° | 4:13:49 am | 9:51:21 pm | 3:22:16 am | 10:42:54 pm | 8h 53m 26s | 🌔 (91%) |
| Fri, May 29 | 4:56:35 am | 5:29:00 am | 8:36:26 pm | 9:08:51 pm | 15h 7m 26s | 1m 28s | 1:02:43 pm | 64.6° | 4:12:57 am | 9:52:29 pm | 3:21:03 am | 10:44:23 pm | 8h 52m 0s | 🌔 (96%) |
| Sat, May 30 | 4:55:56 am | 5:28:26 am | 8:37:16 pm | 9:09:47 pm | 15h 8m 50s | 1m 24s | 1:02:51 pm | 64.7° | 4:12:08 am | 9:53:35 pm | 3:19:52 am | 10:45:51 pm | 8h 50m 39s | 🌔 (99%) |
| Sun, May 31 | 4:55:19 am | 5:27:55 am | 8:38:06 pm | 9:10:42 pm | 15h 10m 11s | 1m 21s | 1:03:00 pm | 64.9° | 4:11:21 am | 9:54:39 pm | 3:18:45 am | 10:47:16 pm | 8h 49m 19s | 🌕 (100%) |
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Sunrise and Sunset photos in Casper, WY
Enjoy this beautiful gallery of images of the sunset and sunrise at Casper, WY. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Casper, WY - 2026
The followin graph shows sunrise and sunset times in Casper, WY for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Casper, WY.