Longest and shortest day in Karaj
In Karaj, Iran, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 36m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 9h 44m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:10 | 18:17 | 12h 8m |
| June solstice | Sunday, 21 June 2026 | 04:50 | 19:25 | 14h 36m |
| September equinox | Tuesday, 22 September 2026 | 05:53 | 18:03 | 12h 10m |
| December solstice | Monday, 21 December 2026 | 07:12 | 16:55 | 9h 44m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:15 | 17:15 | 10h 0m |
| February | 06:53 | 17:47 | 10h 54m |
| March | 06:17 | 18:13 | 11h 56m |
| April | 05:33 | 18:39 | 13h 5m |
| May | 05:01 | 19:04 | 14h 3m |
| June | 04:49 | 19:23 | 14h 35m |
| July | 05:01 | 19:22 | 14h 21m |
| August | 05:24 | 18:56 | 13h 31m |
| September | 05:48 | 18:13 | 12h 25m |
| October | 06:12 | 17:30 | 11h 18m |
| November | 06:41 | 16:58 | 10h 17m |
| December | 07:08 | 16:53 | 9h 45m |
Why the day gets longer and shorter in Karaj
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Karaj 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 Karaj sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Karaj
When is the longest day in Karaj?
The longest day in Karaj falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 36m of daylight, sunrise at 04:50 and sunset at 19:25.
When is the shortest day in Karaj?
The shortest day in Karaj falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 9h 44m of daylight, sunrise at 07:12 and sunset at 16:55.
How much does day length change through the year in Karaj?
Between the longest and shortest day, Karaj gains and loses about 4h 52m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Karaj's coordinates with SunCalc, not looked up from a table.