Rock Springs
Sunrise and sunset in Rock Springs
Today’s sunrise, sunset and twilight in Rock Springs, in local time. At 41.6° N, the day lasts from 9 h 10 min at the winter solstice to 15 h 12 min at the summer solstice.
Today · worked out at
Wednesday, October 21: sunrise at 07:35, sunset at 18:26.
Day length 10 h 50 min, 2 min 38 s shorter than yesterday.
Solar noon at 13:01, with the Sun 38° above the horizon.
Times are Rock Springs time (MDT).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 06:03 | 19:58 |
| Nautical twilight | 06:35 | 19:26 |
| Civil twilight | 07:07 | 18:54 |
| Sunrise and sunset | 07:35 | 18:26 |
| Golden hour | 07:35–08:14 | 17:48–18:26 |
Each twilight begins at the morning time and ends at the evening one.
Fajr, Dhuhr, Asr, Maghrib and Isha: Prayer times in Rock Springs
The year in Rock Springs
- Longest day: June 21, 15 h 12 min, from sunrise at 05:42 to sunset at 20:54.
- Shortest day: December 21, 9 h 10 min, from sunrise at 07:40 to sunset at 16:49.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 07:37 | 17:19 | 9 h 41 min |
| February 21 | 07:03 | 17:57 | 10 h 55 min |
| March 21 | 07:18 | 19:30 | 12 h 12 min |
| April 21 | 06:27 | 20:04 | 13 h 37 min |
| May 21 | 05:51 | 20:35 | 14 h 44 min |
| June 21 | 05:42 | 20:54 | 15 h 12 min |
| July 21 | 06:01 | 20:44 | 14 h 44 min |
| August 21 | 06:31 | 20:07 | 13 h 35 min |
| September 21 | 07:03 | 19:15 | 12 h 12 min |
| October 21 | 07:35 | 18:26 | 10 h 50 min |
| November 21 | 07:13 | 16:52 | 9 h 39 min |
| December 21 | 07:40 | 16:49 | 9 h 10 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 41.6° N, 109.2° 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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