Summit Sunrise and Sunset Calendar 2025
In 2025, the longest day in Summit is June 20, 2025 with 14 hours, 15 minutes of daylight, and the shortest is December 21, 2025 with 10 hours, 3 minutes, a difference of 4 hours, 12 minutes.
- Daylight
- Civil twilight
- Night
Earliest sunriseJune 3, 2025
Latest sunriseJanuary 3, 2025
Earliest sunsetDecember 1, 2025
Latest sunsetJune 26, 2025
Month by month, 2025
Times on the 1st and 15th of each month
| Month | Sunrise 1st | Sunset 1st | Sunrise 15th | Sunset 15th | Average day | Change |
|---|---|---|---|---|---|---|
| January | 10h 20m | +0h 33m | ||||
| February | 11h 04m | +0h 48m | ||||
| March | 12h 01m | +0h 59m | ||||
| April | 13h 00m | +0h 53m | ||||
| May | 13h 49m | +0h 39m | ||||
| June | 14h 13m | +0h 06m | ||||
| July | 14h 00m | −0h 30m | ||||
| August | 13h 17m | −0h 51m | ||||
| September | 12h 20m | −0h 56m | ||||
| October | 11h 22m | −0h 56m | ||||
| November | 10h 31m | −0h 40m | ||||
| December | 10h 05m | −0h 07m |
Solstices and equinoxes in Summit
| March equinox | March 20, 2025 | 12h 09m daylight |
|---|---|---|
| June solstice | June 20, 2025 | 14h 15m daylight |
| September equinox | September 22, 2025 | 12h 08m daylight |
| December solstice | December 21, 2025 | 10h 03m daylight |
North of the equator the June solstice brings the longest day and December the shortest.
Clock changes in 2025
Summit keeps the same clock time all year (MST, UTC−7).
Summit daylight questions for 2025
When is the longest day of 2025 in Summit?
June 20, 2025, with 14 hours, 15 minutes of daylight.
When is the shortest day of 2025 in Summit?
December 21, 2025, with 10 hours, 3 minutes of daylight.
When is the earliest sunrise and latest sunset in Summit in 2025?
The earliest sunrise is on June 3, 2025 at 5:18 AM and the latest sunset on June 26, 2025 at 7:34 PM, local time.