Cottonwood Heights, UT: shortest day and earliest sunset
The shortest day in Cottonwood Heights
On Dec 21 the sun rises at 7:48 am and sets at 5:03 pm: 9h 16m of daylight, a moderate winter. The longest day of summer has 15h 05m, so the swing is 5h 49m.
When it gets better in Cottonwood Heights
- Earliest sunset: 5:00 pm on Dec 7, before the shortest day (here is why).
- Latest sunrise (standard time): 7:51 am on Jan 4.
- Back above 10 hours of daylight: Jan 29.
- By Feb 21 the days grow by 2.6 minutes a day.
Waking and coming home in the dark
With a 7:00 am alarm, the sun is not yet up on 142 weekdays a year. Heading home at 5:30 pm, it has already set on 57. 55 weekdays start and end in the dark. The alarm and lamp guide shows how that compares across the country.
At 40.6°N this sits between Sarasota FL (27°N, 1.4%) and Nashua NH (43°N, 9.7%) in a 1990 survey of winter depression by latitude.
What to do about it in Cottonwood Heights
- A sunrise alarm clock is worth getting here: on 96 weekdays the sun is still at least 20 minutes from rising at 7:00 am. Dark mornings run from Sep 7 to Apr 7, so set it up before Sep 7.
- There is some case for a light therapy lamp: 55 weekdays start and end in the dark. If you notice winter low mood, ask a doctor whether one fits you.
- If you head home at 5:30 pm, the sun has already set from Nov 2 to Jan 19: worth checking your bike lights and porch light before Nov 2.
Daylight in Cottonwood Heights, month by month
Sunrise, sunset and day length on the 21st of each month, local clock time. December is the darkest, at 9h 16m.
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| July 2026 | 6:14 am | 8:53 pm | 14h 38m |
| August 2026 | 6:44 am | 8:16 pm | 13h 32m |
| September 2026 | 7:14 am | 7:26 pm | 12h 12m |
| October 2026 | 7:45 am | 6:38 pm | 10h 53m |
| November 2026 | 7:21 am | 5:05 pm | 9h 44m |
| December 2026 | 7:48 am | 5:03 pm | 9h 16m |
| January 2027 | 7:46 am | 5:32 pm | 9h 46m |
| February 2027 | 7:13 am | 6:09 pm | 10h 56m |
| March 2027 | 7:29 am | 7:40 pm | 12h 11m |
| April 2027 | 6:40 am | 8:13 pm | 13h 33m |
| May 2027 | 6:05 am | 8:43 pm | 14h 38m |
| June 2027 | 5:57 am | 9:02 pm | 15h 05m |
Cottonwood Heights against the places around it
On the shortest day, compared with Cottonwood Heights (9h 16m, sunset 5:03 pm):
- Holladay, UT, 3 mi away: 9h 16m of daylight (0 min), sunset 5:03 pm (0 min).
- Sandy, UT, 3 mi away: 9h 16m of daylight (0 min), sunset 5:04 pm (+1 min).
- Midvale, UT, 4 mi away: 9h 16m of daylight (0 min), sunset 5:04 pm (+1 min).
- Murray, UT, 5 mi away: 9h 16m of daylight (0 min), sunset 5:04 pm (+1 min).
- Millcreek, UT, 5 mi away: 9h 15m of daylight (-1 min), sunset 5:03 pm (0 min).