Sunrise and sunset times in Roundup, MT
Check out today's and tomorrow's sunrise and sunset times in Roundup, MT, United States, as well as the whole calendar for May 2026.
Today
May 17, 2026 . Current time: 7:58:23 am
First light at 5:01:52 am
Sunrise time: 5:35:59 am
Sunset time: 8:45:11 pm
Last light at 9:19:18 pm
Day length: 15 hours, 9 minutes
12 hours, 46 minutes left for today's sunset in Roundup
Moon rose on May 17 at 04:42 AM
Moon will set on May 17 at 09:43 PMMoon phase: 🌒 Waxing Crescent (1%)Tomorrow
May 18, 2026
First light at 5:00:37 am
Sunrise time: 5:34:53 am
Sunset time: 8:46:22 pm
Last light at 9:20:38 pm
Day length: 15 hours, 11 minutes
Tomorrow will be approximately 2 minutes longer than today in Roundup
Moon will rise on May 18 at 05:37 AM Moon will set on May 18 at 10:52 PMMoon phase: 🌒 Waxing Crescent (9%)
- Roundup, Montana
- Latitude: 46.445244
- Longitude: -108.541801
- Time zone: Mountain Time MDT
Shortest day in Roundup, MT
The shortest day of the year will be in around 7 months, during the winter solstice on December 21, 2026, with a daylight length of 8 hours and 38 minutes.Longest day in Roundup, MT
The longest day of the year will be in 1 month and 2 days, during the summer solstice on June 20, 2026, with a daylight length of 15 hours and 52 minutes.
May 2026 - Roundup, Montana - 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 Roundup.
The day length increases by 1 hour, 9 minutes over the course of May 2026 in Roundup, MT - from 14 hours, 27 minutes on the first day to 15 hours, 36 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 | 5:25:45 am | 5:57:36 am | 8:24:51 pm | 8:56:43 pm | 14h 27m 15s | 14h 27m 15s | 1:11:14 pm | 61.7° | 4:43:50 am | 9:38:37 pm | 3:56:15 am | 10:26:13 pm | 9h 31m 13s | 🌕 (100%) |
| Sat, May 2 | 5:24:04 am | 5:56:04 am | 8:26:10 pm | 8:58:10 pm | 14h 30m 6s | 2m 51s | 1:11:07 pm | 62° | 4:41:54 am | 9:40:20 pm | 3:53:51 am | 10:28:23 pm | 9h 28m 22s | 🌖 (100%) |
| Sun, May 3 | 5:22:25 am | 5:54:32 am | 8:27:30 pm | 8:59:37 pm | 14h 32m 58s | 2m 52s | 1:11:01 pm | 62.3° | 4:40:00 am | 9:42:02 pm | 3:51:27 am | 10:30:35 pm | 9h 25m 33s | 🌖 (98%) |
| Mon, May 4 | 5:20:47 am | 5:53:03 am | 8:28:48 pm | 9:01:04 pm | 14h 35m 45s | 2m 47s | 1:10:55 pm | 62.6° | 4:38:06 am | 9:43:45 pm | 3:49:04 am | 10:32:47 pm | 9h 22m 46s | 🌖 (94%) |
| Tue, May 5 | 5:19:10 am | 5:51:34 am | 8:30:07 pm | 9:02:31 pm | 14h 38m 33s | 2m 48s | 1:10:50 pm | 62.9° | 4:36:13 am | 9:45:27 pm | 3:46:41 am | 10:35:00 pm | 9h 20m 0s | 🌖 (89%) |
| Wed, May 6 | 5:17:35 am | 5:50:07 am | 8:31:25 pm | 9:03:57 pm | 14h 41m 18s | 2m 45s | 1:10:46 pm | 63.1° | 4:34:22 am | 9:47:10 pm | 3:44:18 am | 10:37:14 pm | 9h 17m 17s | 🌖 (82%) |
| Thu, May 7 | 5:16:01 am | 5:48:42 am | 8:32:43 pm | 9:05:23 pm | 14h 44m 1s | 2m 43s | 1:10:42 pm | 63.4° | 4:32:32 am | 9:48:52 pm | 3:41:56 am | 10:39:28 pm | 9h 14m 35s | 🌖 (75%) |
| Fri, May 8 | 5:14:29 am | 5:47:18 am | 8:34:00 pm | 9:06:49 pm | 14h 46m 42s | 2m 41s | 1:10:39 pm | 63.7° | 4:30:43 am | 9:50:35 pm | 3:39:34 am | 10:41:43 pm | 9h 11m 56s | 🌖 (66%) |
| Sat, May 9 | 5:12:58 am | 5:45:56 am | 8:35:17 pm | 9:08:14 pm | 14h 49m 21s | 2m 39s | 1:10:36 pm | 64° | 4:28:55 am | 9:52:17 pm | 3:37:13 am | 10:43:59 pm | 9h 9m 18s | 🌖 (56%) |
| Sun, May 10 | 5:11:29 am | 5:44:35 am | 8:36:33 pm | 9:09:39 pm | 14h 51m 58s | 2m 37s | 1:10:34 pm | 64.2° | 4:27:09 am | 9:53:59 pm | 3:34:53 am | 10:46:15 pm | 9h 6m 43s | 🌗 (46%) |
| Mon, May 11 | 5:10:01 am | 5:43:16 am | 8:37:49 pm | 9:11:04 pm | 14h 54m 33s | 2m 35s | 1:10:32 pm | 64.5° | 4:25:25 am | 9:55:40 pm | 3:32:33 am | 10:48:32 pm | 9h 4m 10s | 🌘 (36%) |
| Tue, May 12 | 5:08:35 am | 5:41:59 am | 8:39:04 pm | 9:12:28 pm | 14h 57m 5s | 2m 32s | 1:10:31 pm | 64.7° | 4:23:42 am | 9:57:21 pm | 3:30:14 am | 10:50:49 pm | 9h 1m 39s | 🌘 (26%) |
| Wed, May 13 | 5:07:11 am | 5:40:43 am | 8:40:19 pm | 9:13:51 pm | 14h 59m 36s | 2m 31s | 1:10:31 pm | 65° | 4:22:00 am | 9:59:02 pm | 3:27:56 am | 10:53:06 pm | 8h 59m 10s | 🌘 (17%) |
| Thu, May 14 | 5:05:48 am | 5:39:29 am | 8:41:33 pm | 9:15:14 pm | 15h 2m 4s | 2m 28s | 1:10:31 pm | 65.2° | 4:20:20 am | 10:00:42 pm | 3:25:39 am | 10:55:23 pm | 8h 56m 44s | 🌘 (9%) |
| Fri, May 15 | 5:04:28 am | 5:38:17 am | 8:42:46 pm | 9:16:36 pm | 15h 4m 29s | 2m 25s | 1:10:32 pm | 65.5° | 4:18:42 am | 10:02:22 pm | 3:23:23 am | 10:57:41 pm | 8h 54m 21s | 🌘 (4%) |
| Sat, May 16 | 5:03:09 am | 5:37:07 am | 8:43:59 pm | 9:17:57 pm | 15h 6m 52s | 2m 23s | 1:10:33 pm | 65.7° | 4:17:06 am | 10:04:00 pm | 3:21:08 am | 10:59:59 pm | 8h 52m 0s | 🌘 (1%) |
| Sun, May 17 | 5:01:52 am | 5:35:59 am | 8:45:11 pm | 9:19:18 pm | 15h 9m 12s | 2m 20s | 1:10:35 pm | 65.9° | 4:15:31 am | 10:05:39 pm | 3:18:54 am | 11:02:16 pm | 8h 49m 42s | 🌑 (0%) |
| Mon, May 18 | 5:00:37 am | 5:34:53 am | 8:46:22 pm | 9:20:38 pm | 15h 11m 29s | 2m 17s | 1:10:37 pm | 66.1° | 4:13:59 am | 10:07:16 pm | 3:16:41 am | 11:04:34 pm | 8h 47m 26s | 🌒 (3%) |
| Tue, May 19 | 4:59:24 am | 5:33:48 am | 8:47:32 pm | 9:21:57 pm | 15h 13m 44s | 2m 15s | 1:10:40 pm | 66.3° | 4:12:28 am | 10:08:52 pm | 3:14:29 am | 11:06:51 pm | 8h 45m 14s | 🌒 (9%) |
| Wed, May 20 | 4:58:13 am | 5:32:46 am | 8:48:41 pm | 9:23:14 pm | 15h 15m 55s | 2m 11s | 1:10:44 pm | 66.5° | 4:11:00 am | 10:10:28 pm | 3:12:19 am | 11:09:08 pm | 8h 43m 5s | 🌒 (17%) |
| Thu, May 21 | 4:57:04 am | 5:31:46 am | 8:49:50 pm | 9:24:31 pm | 15h 18m 4s | 2m 9s | 1:10:48 pm | 66.8° | 4:09:34 am | 10:12:02 pm | 3:10:11 am | 11:11:25 pm | 8h 40m 57s | 🌒 (26%) |
| Fri, May 22 | 4:55:58 am | 5:30:47 am | 8:50:57 pm | 9:25:47 pm | 15h 20m 10s | 2m 6s | 1:10:52 pm | 66.9° | 4:08:10 am | 10:13:35 pm | 3:08:04 am | 11:13:41 pm | 8h 38m 54s | 🌒 (37%) |
| Sat, May 23 | 4:54:53 am | 5:29:51 am | 8:52:03 pm | 9:27:01 pm | 15h 22m 12s | 2m 2s | 1:10:57 pm | 67.1° | 4:06:48 am | 10:15:07 pm | 3:05:59 am | 11:15:56 pm | 8h 36m 54s | 🌓 (48%) |
| Sun, May 24 | 4:53:51 am | 5:28:57 am | 8:53:08 pm | 9:28:15 pm | 15h 24m 11s | 1m 59s | 1:11:03 pm | 67.3° | 4:05:29 am | 10:16:37 pm | 3:03:56 am | 11:18:10 pm | 8h 34m 58s | 🌔 (58%) |
| Mon, May 25 | 4:52:51 am | 5:28:06 am | 8:54:12 pm | 9:29:27 pm | 15h 26m 6s | 1m 55s | 1:11:09 pm | 67.5° | 4:04:12 am | 10:18:06 pm | 3:01:55 am | 11:20:23 pm | 8h 33m 4s | 🌔 (68%) |
| Tue, May 26 | 4:51:54 am | 5:27:16 am | 8:55:15 pm | 9:30:37 pm | 15h 27m 59s | 1m 53s | 1:11:16 pm | 67.7° | 4:02:57 am | 10:19:34 pm | 2:59:56 am | 11:22:35 pm | 8h 31m 14s | 🌔 (77%) |
| Wed, May 27 | 4:50:59 am | 5:26:29 am | 8:56:17 pm | 9:31:46 pm | 15h 29m 48s | 1m 49s | 1:11:23 pm | 67.8° | 4:01:46 am | 10:20:59 pm | 2:58:00 am | 11:24:46 pm | 8h 29m 26s | 🌔 (85%) |
| Thu, May 28 | 4:50:06 am | 5:25:43 am | 8:57:17 pm | 9:32:54 pm | 15h 31m 34s | 1m 46s | 1:11:30 pm | 68° | 4:00:37 am | 10:22:23 pm | 2:56:06 am | 11:26:55 pm | 8h 27m 44s | 🌔 (91%) |
| Fri, May 29 | 4:49:16 am | 5:25:01 am | 8:58:15 pm | 9:34:00 pm | 15h 33m 14s | 1m 40s | 1:11:38 pm | 68.2° | 3:59:30 am | 10:23:46 pm | 2:54:14 am | 11:29:02 pm | 8h 26m 5s | 🌔 (96%) |
| Sat, May 30 | 4:48:28 am | 5:24:20 am | 8:59:13 pm | 9:35:05 pm | 15h 34m 53s | 1m 39s | 1:11:46 pm | 68.3° | 3:58:27 am | 10:25:06 pm | 2:52:26 am | 11:31:07 pm | 8h 24m 29s | 🌔 (99%) |
| Sun, May 31 | 4:47:43 am | 5:23:42 am | 9:00:08 pm | 9:36:08 pm | 15h 36m 26s | 1m 33s | 1:11:55 pm | 68.4° | 3:57:27 am | 10:26:24 pm | 2:50:41 am | 11:33:10 pm | 8h 22m 58s | 🌕 (100%) |
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Sunrise and Sunset photos in Roundup, MT
Enjoy this beautiful gallery of images of the sunset and sunrise at Roundup, MT. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Roundup, MT - 2026
The followin graph shows sunrise and sunset times in Roundup, MT for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Roundup, MT.