Bismarck
Sunrise and sunset in Bismarck
Today’s sunrise, sunset and twilight in Bismarck, in local time. At 46.8° N, the day lasts from 8 h 32 min at the winter solstice to 15 h 52 min at the summer solstice.
Today · worked out at
Thursday, October 22: sunrise at 08:11, sunset at 18:43.
Day length 10 h 32 min, 3 min 10 s shorter than yesterday.
Solar noon at 13:27, with the Sun 32° above the horizon.
Times are Bismarck time (CDT).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 06:29 | 20:24 |
| Nautical twilight | 07:04 | 19:49 |
| Civil twilight | 07:40 | 19:14 |
| Sunrise and sunset | 08:11 | 18:43 |
| Golden hour | 08:11–08:53 | 18:00–18:43 |
Each twilight begins at the morning time and ends at the evening one.
The year in Bismarck
- Longest day: June 21, 15 h 52 min, from sunrise at 05:48 to sunset at 21:41.
- Shortest day: December 21, 8 h 32 min, from sunrise at 08:25 to sunset at 16:57.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 08:19 | 17:30 | 9 h 11 min |
| February 21 | 07:36 | 18:17 | 10 h 40 min |
| March 21 | 07:43 | 19:57 | 12 h 14 min |
| April 21 | 06:44 | 20:39 | 13 h 55 min |
| May 21 | 06:01 | 21:18 | 15 h 17 min |
| June 21 | 05:48 | 21:41 | 15 h 52 min |
| July 21 | 06:10 | 21:28 | 15 h 18 min |
| August 21 | 06:48 | 20:42 | 13 h 54 min |
| September 21 | 07:28 | 19:42 | 12 h 14 min |
| October 21 | 08:09 | 18:45 | 10 h 35 min |
| November 21 | 07:54 | 17:03 | 9 h 08 min |
| December 21 | 08:25 | 16:57 | 8 h 32 min |
Good to know
- Sunrise and sunset are when the top of the Sun meets a level horizon, allowing for the usual bending of light by the air. Hills, buildings and height shift what you see by a few minutes.
- Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
- Worked out when the page loads from NOAA’s solar equations, for 46.8° N, 100.8° W, and accurate to about a minute.
How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets
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