Fort Collins
Sunrise and sunset in Fort Collins
Today’s sunrise, sunset and twilight in Fort Collins, in local time. At 40.6° N, the day lasts from 9 h 16 min at the winter solstice to 15 h 05 min at the summer solstice.
Today · worked out at
Wednesday, October 21: sunrise at 07:18, sunset at 18:11.
Day length 10 h 53 min, 2 min 32 s shorter than yesterday.
Solar noon at 12:44, with the Sun 39° above the horizon.
Times are Fort Collins time (MDT).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 05:46 | 19:42 |
| Nautical twilight | 06:18 | 19:10 |
| Civil twilight | 06:50 | 18:38 |
| Sunrise and sunset | 07:18 | 18:11 |
| Golden hour | 07:18–07:55 | 17:33–18:11 |
Each twilight begins at the morning time and ends at the evening one.
The year in Fort Collins
- Longest day: June 21, 15 h 05 min, from sunrise at 05:29 to sunset at 20:34.
- Shortest day: December 21, 9 h 16 min, from sunrise at 07:20 to sunset at 16:36.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 07:18 | 17:05 | 9 h 46 min |
| February 21 | 06:45 | 17:42 | 10 h 57 min |
| March 21 | 07:01 | 19:13 | 12 h 12 min |
| April 21 | 06:12 | 19:46 | 13 h 33 min |
| May 21 | 05:38 | 20:16 | 14 h 38 min |
| June 21 | 05:29 | 20:34 | 15 h 05 min |
| July 21 | 05:47 | 20:25 | 14 h 38 min |
| August 21 | 06:16 | 19:49 | 13 h 32 min |
| September 21 | 06:47 | 18:58 | 12 h 12 min |
| October 21 | 07:18 | 18:11 | 10 h 53 min |
| November 21 | 06:53 | 16:38 | 9 h 44 min |
| December 21 | 07:20 | 16:36 | 9 h 16 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 40.6° N, 105.1° 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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