Sunrise and sunset times in Keystone, SD
Check out today's and tomorrow's sunrise and sunset times in Keystone, SD, United States, as well as the whole calendar for August 2026.
Today
August 6, 2026 . Current time: 5:33:25 pm
First light at 5:15:56 am
Sunrise time: 5:46:32 am
Sunset time: 8:12:34 pm
Last light at 8:43:09 pm
Day length: 14 hours, 26 minutes
2 hours, 39 minutes left for today's sunset in Keystone
Moon set on Aug 6 at 2:56 PM
Moon will rise on Aug 6 at 11:49 PMMoon phase: 🌘 Waning Crescent (40%)🌑 New moon: Aug 12 at 11:37 AM · 🌕 Full moon: Aug 27 at 10:19 PMTomorrow
August 7, 2026
First light at 5:17:10 am
Sunrise time: 5:47:39 am
Sunset time: 8:11:12 pm
Last light at 8:41:41 pm
Day length: 14 hours, 23 minutes
Tomorrow will be 2 minutes shorter than today in Keystone
Moon will set on Aug 7 at 4:13 PM Moon will rise on Aug 8 at 12:00 AMMoon phase: 🌘 Waning Crescent (26%)
- Keystone, South Dakota
- Latitude: 43.895542
- Longitude: -103.418243
- Time zone: Mountain Time MDT
Shortest day in Keystone, SD
The shortest day of the year will be in 5 months, during the winter solstice on December 21, 2026, with a daylight length of 8 hours and 57 minutes.Longest day in Keystone, SD
The longest day of the year was 1 month and 16 days ago, during the summer solstice on June 20, 2026, with a daylight length of 15 hours and 31 minutes.
August 2026 - Keystone, South Dakota - 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 August in Keystone.
The day length shortens by 1 hour, 19 minutes over the course of August 2026 in Keystone, SD - from 14 hours, 37 minutes on the first day to 13 hours, 18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sat, Aug 1 | 5:09:50 am | 5:41:01 am | 8:19:00 pm | 8:50:11 pm | 14h 37m 59s | 14h 37m 59s | 1:00:01 pm | 61.8° | 4:28:44 am | 9:31:17 pm | 3:41:57 am | 10:18:04 pm | 9h 23m 6s | 🌖 (93%) |
| Sun, Aug 2 | 5:11:03 am | 5:42:06 am | 8:17:46 pm | 8:48:50 pm | 14h 35m 40s | -2m -19s | 12:59:56 pm | 61.5° | 4:30:10 am | 9:29:42 pm | 3:43:47 am | 10:16:06 pm | 9h 25m 26s | 🌖 (87%) |
| Mon, Aug 3 | 5:12:16 am | 5:43:12 am | 8:16:30 pm | 8:47:27 pm | 14h 33m 18s | -2m -22s | 12:59:51 pm | 61.2° | 4:31:36 am | 9:28:07 pm | 3:45:36 am | 10:14:07 pm | 9h 27m 49s | 🌖 (79%) |
| Tue, Aug 4 | 5:13:29 am | 5:44:19 am | 8:15:13 pm | 8:46:02 pm | 14h 30m 54s | -2m -24s | 12:59:46 pm | 61° | 4:33:02 am | 9:26:29 pm | 3:47:25 am | 10:12:06 pm | 9h 30m 12s | 🌖 (70%) |
| Wed, Aug 5 | 5:14:43 am | 5:45:25 am | 8:13:54 pm | 8:44:37 pm | 14h 28m 29s | -2m -25s | 12:59:40 pm | 60.7° | 4:34:29 am | 9:24:51 pm | 3:49:14 am | 10:10:05 pm | 9h 32m 38s | 🌖 (59%) |
| Thu, Aug 6 | 5:15:56 am | 5:46:32 am | 8:12:34 pm | 8:43:09 pm | 14h 26m 2s | -2m -27s | 12:59:33 pm | 60.4° | 4:35:55 am | 9:23:11 pm | 3:51:03 am | 10:08:03 pm | 9h 35m 5s | 🌗 (48%) |
| Fri, Aug 7 | 5:17:10 am | 5:47:39 am | 8:11:12 pm | 8:41:41 pm | 14h 23m 33s | -2m -29s | 12:59:26 pm | 60.1° | 4:37:22 am | 9:21:30 pm | 3:52:51 am | 10:06:00 pm | 9h 37m 35s | 🌘 (37%) |
| Sat, Aug 8 | 5:18:25 am | 5:48:47 am | 8:09:49 pm | 8:40:11 pm | 14h 21m 2s | -2m -31s | 12:59:18 pm | 59.9° | 4:38:48 am | 9:19:47 pm | 3:54:39 am | 10:03:56 pm | 9h 40m 5s | 🌘 (26%) |
| Sun, Aug 9 | 5:19:39 am | 5:49:54 am | 8:08:24 pm | 8:38:40 pm | 14h 18m 30s | -2m -32s | 12:59:09 pm | 59.6° | 4:40:15 am | 9:18:04 pm | 3:56:27 am | 10:01:51 pm | 9h 42m 38s | 🌘 (17%) |
| Mon, Aug 10 | 5:20:53 am | 5:51:02 am | 8:06:58 pm | 8:37:07 pm | 14h 15m 56s | -2m -34s | 12:59:00 pm | 59.3° | 4:41:41 am | 9:16:19 pm | 3:58:14 am | 9:59:46 pm | 9h 45m 12s | 🌘 (9%) |
| Tue, Aug 11 | 5:22:08 am | 5:52:10 am | 8:05:31 pm | 8:35:33 pm | 14h 13m 21s | -2m -35s | 12:58:51 pm | 59° | 4:43:07 am | 9:14:34 pm | 4:00:01 am | 9:57:40 pm | 9h 47m 47s | 🌘 (3%) |
| Wed, Aug 12 | 5:23:22 am | 5:53:18 am | 8:04:03 pm | 8:33:59 pm | 14h 10m 45s | -2m -36s | 12:58:40 pm | 58.7° | 4:44:34 am | 9:12:47 pm | 4:01:47 am | 9:55:34 pm | 9h 50m 23s | 🌑 (0%) |
| Thu, Aug 13 | 5:24:36 am | 5:54:26 am | 8:02:33 pm | 8:32:23 pm | 14h 8m 7s | -2m -38s | 12:58:30 pm | 58.4° | 4:46:00 am | 9:11:00 pm | 4:03:32 am | 9:53:27 pm | 9h 53m 1s | 🌑 (0%) |
| Fri, Aug 14 | 5:25:51 am | 5:55:34 am | 8:01:03 pm | 8:30:46 pm | 14h 5m 29s | -2m -38s | 12:58:18 pm | 58.1° | 4:47:25 am | 9:09:11 pm | 4:05:17 am | 9:51:19 pm | 9h 55m 39s | 🌒 (3%) |
| Sat, Aug 15 | 5:27:05 am | 5:56:42 am | 7:59:31 pm | 8:29:08 pm | 14h 2m 49s | -2m -40s | 12:58:06 pm | 57.8° | 4:48:51 am | 9:07:22 pm | 4:07:01 am | 9:49:12 pm | 9h 58m 19s | 🌒 (8%) |
| Sun, Aug 16 | 5:28:20 am | 5:57:50 am | 7:57:58 pm | 8:27:29 pm | 14h 0m 8s | -2m -41s | 12:57:54 pm | 57.4° | 4:50:16 am | 9:05:32 pm | 4:08:45 am | 9:47:03 pm | 10h 1m 1s | 🌒 (15%) |
| Mon, Aug 17 | 5:29:34 am | 5:58:59 am | 7:56:24 pm | 8:25:48 pm | 13h 57m 25s | -2m -43s | 12:57:41 pm | 57.1° | 4:51:42 am | 9:03:41 pm | 4:10:28 am | 9:44:54 pm | 10h 3m 43s | 🌒 (23%) |
| Tue, Aug 18 | 5:30:48 am | 6:00:07 am | 7:54:49 pm | 8:24:07 pm | 13h 54m 42s | -2m -43s | 12:57:28 pm | 56.8° | 4:53:06 am | 9:01:49 pm | 4:12:10 am | 9:42:45 pm | 10h 6m 26s | 🌒 (32%) |
| Wed, Aug 19 | 5:32:02 am | 6:01:15 am | 7:53:13 pm | 8:22:26 pm | 13h 51m 58s | -2m -44s | 12:57:14 pm | 56.5° | 4:54:31 am | 8:59:57 pm | 4:13:52 am | 9:40:36 pm | 10h 9m 11s | 🌒 (42%) |
| Thu, Aug 20 | 5:33:16 am | 6:02:24 am | 7:51:36 pm | 8:20:43 pm | 13h 49m 12s | -2m -46s | 12:57:00 pm | 56.1° | 4:55:55 am | 8:58:04 pm | 4:15:33 am | 9:38:26 pm | 10h 11m 56s | 🌓 (51%) |
| Fri, Aug 21 | 5:34:30 am | 6:03:32 am | 7:49:58 pm | 8:18:59 pm | 13h 46m 26s | -2m -46s | 12:56:45 pm | 55.8° | 4:57:19 am | 8:56:10 pm | 4:17:13 am | 9:36:17 pm | 10h 14m 42s | 🌔 (61%) |
| Sat, Aug 22 | 5:35:44 am | 6:04:40 am | 7:48:19 pm | 8:17:15 pm | 13h 43m 39s | -2m -47s | 12:56:29 pm | 55.5° | 4:58:43 am | 8:54:16 pm | 4:18:52 am | 9:34:07 pm | 10h 17m 30s | 🌔 (70%) |
| Sun, Aug 23 | 5:36:58 am | 6:05:49 am | 7:46:39 pm | 8:15:30 pm | 13h 40m 50s | -2m -49s | 12:56:14 pm | 55.1° | 5:00:06 am | 8:52:21 pm | 4:20:31 am | 9:31:57 pm | 10h 20m 18s | 🌔 (78%) |
| Mon, Aug 24 | 5:38:11 am | 6:06:57 am | 7:44:58 pm | 8:13:44 pm | 13h 38m 1s | -2m -49s | 12:55:58 pm | 54.8° | 5:01:29 am | 8:50:26 pm | 4:22:09 am | 9:29:46 pm | 10h 23m 7s | 🌔 (85%) |
| Tue, Aug 25 | 5:39:24 am | 6:08:05 am | 7:43:17 pm | 8:11:58 pm | 13h 35m 12s | -2m -49s | 12:55:41 pm | 54.4° | 5:02:51 am | 8:48:31 pm | 4:23:46 am | 9:27:36 pm | 10h 25m 56s | 🌔 (92%) |
| Wed, Aug 26 | 5:40:37 am | 6:09:13 am | 7:41:35 pm | 8:10:11 pm | 13h 32m 22s | -2m -50s | 12:55:24 pm | 54.1° | 5:04:14 am | 8:46:35 pm | 4:25:23 am | 9:25:26 pm | 10h 28m 47s | 🌔 (96%) |
| Thu, Aug 27 | 5:41:50 am | 6:10:22 am | 7:39:52 pm | 8:08:23 pm | 13h 29m 30s | -2m -52s | 12:55:07 pm | 53.7° | 5:05:35 am | 8:44:38 pm | 4:26:58 am | 9:23:15 pm | 10h 31m 38s | 🌔 (99%) |
| Fri, Aug 28 | 5:43:03 am | 6:11:30 am | 7:38:08 pm | 8:06:35 pm | 13h 26m 38s | -2m -52s | 12:54:49 pm | 53.4° | 5:06:57 am | 8:42:41 pm | 4:28:33 am | 9:21:05 pm | 10h 34m 30s | 🌕 (100%) |
| Sat, Aug 29 | 5:44:16 am | 6:12:38 am | 7:36:24 pm | 8:04:46 pm | 13h 23m 46s | -2m -52s | 12:54:31 pm | 53° | 5:08:18 am | 8:40:44 pm | 4:30:07 am | 9:18:54 pm | 10h 37m 22s | 🌖 (99%) |
| Sun, Aug 30 | 5:45:28 am | 6:13:46 am | 7:34:39 pm | 8:02:57 pm | 13h 20m 53s | -2m -53s | 12:54:12 pm | 52.7° | 5:09:38 am | 8:38:47 pm | 4:31:41 am | 9:16:44 pm | 10h 40m 15s | 🌖 (95%) |
| Mon, Aug 31 | 5:46:41 am | 6:14:54 am | 7:32:54 pm | 8:01:07 pm | 13h 18m 0s | -2m -53s | 12:53:54 pm | 52.3° | 5:10:58 am | 8:36:49 pm | 4:33:13 am | 9:14:34 pm | 10h 43m 8s | 🌖 (90%) |
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Sunrise and Sunset photos in Keystone, SD
Enjoy this beautiful gallery of images of the sunset and sunrise at Keystone, SD. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Keystone, SD - 2026
The following graph shows sunrise and sunset times in Keystone, SD for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Keystone, SD.
Daylight Dawn & dusk (civil twilight) Night Solar noon · Vertical steps in the curves = DST clock change
Earliest and latest sunrise and sunset in Keystone, SD
In Keystone, SD, the earliest sunrise of 2026 is on June 14 at 5:08 am, while the latest sunrise is on October 31 at 7:27 am. The earliest sunset is on December 9 at 4:17 pm, and the latest sunset is on June 26 at 8:42 pm.
Keystone, SD gets 6h 34m more daylight on the longest day than on the shortest one (15h 31m versus 8h 57m). Averaged over the whole year, a day lasts 12h 16m.
Places near Keystone, SD
These nearby towns and cities have almost the same sunrise and sunset times as Keystone, SD — the difference is only seconds to a couple of minutes. Select any place to see its own sun calendar:
Hill City 13 kmCuster State Park 18 kmHermosa 19 kmCuster 20 kmRapid City 25 kmFairburn 29 kmSummerset 33 kmNemo 34 km