Longest and shortest day in Jacksonville
In Jacksonville, United States, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 6m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 10h 11m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 07:30 | 19:38 | 12h 8m |
| June solstice | Sunday, 21 June 2026 | 06:25 | 20:31 | 14h 6m |
| September equinox | Tuesday, 22 September 2026 | 07:15 | 19:23 | 12h 8m |
| December solstice | Monday, 21 December 2026 | 07:19 | 17:30 | 10h 11m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:23 | 17:48 | 10h 24m |
| February | 07:06 | 18:14 | 11h 8m |
| March | 07:36 | 19:34 | 11h 58m |
| April | 06:59 | 19:54 | 12h 54m |
| May | 06:32 | 20:13 | 13h 41m |
| June | 06:24 | 20:30 | 14h 6m |
| July | 06:35 | 20:29 | 13h 55m |
| August | 06:53 | 20:08 | 13h 14m |
| September | 07:11 | 19:31 | 12h 21m |
| October | 07:28 | 18:55 | 11h 27m |
| November | 06:52 | 17:29 | 10h 37m |
| December | 07:15 | 17:27 | 10h 12m |
Why the day gets longer and shorter in Jacksonville
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Jacksonville leans toward the Sun for part of the year and away for the rest. When it leans toward the Sun the days lengthen and the Sun climbs higher; half a year later the opposite happens. The size of the swing depends on how far Jacksonville sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Jacksonville
When is the longest day in Jacksonville?
The longest day in Jacksonville falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 6m of daylight, sunrise at 06:25 and sunset at 20:31.
When is the shortest day in Jacksonville?
The shortest day in Jacksonville falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 10h 11m of daylight, sunrise at 07:19 and sunset at 17:30.
How much does day length change through the year in Jacksonville?
Between the longest and shortest day, Jacksonville gains and loses about 3h 55m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Jacksonville's coordinates with SunCalc, not looked up from a table.