Longest and shortest day in Phnom Penh
In Phnom Penh, Cambodia, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 12h 48m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 11h 27m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:04 | 18:11 | 12h 6m |
| June solstice | Sunday, 21 June 2026 | 05:37 | 18:26 | 12h 48m |
| September equinox | Tuesday, 22 September 2026 | 05:49 | 17:56 | 12h 7m |
| December solstice | Monday, 21 December 2026 | 06:14 | 17:41 | 11h 27m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 06:23 | 17:55 | 11h 31m |
| February | 06:21 | 18:07 | 11h 46m |
| March | 06:07 | 18:10 | 12h 3m |
| April | 05:49 | 18:11 | 12h 23m |
| May | 05:37 | 18:16 | 12h 39m |
| June | 05:36 | 18:24 | 12h 48m |
| July | 05:44 | 18:28 | 12h 44m |
| August | 05:49 | 18:19 | 12h 30m |
| September | 05:49 | 18:01 | 12h 12m |
| October | 05:49 | 17:42 | 11h 53m |
| November | 05:56 | 17:32 | 11h 36m |
| December | 06:11 | 17:38 | 11h 27m |
Why the day gets longer and shorter in Phnom Penh
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Phnom Penh 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 Phnom Penh sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Phnom Penh
When is the longest day in Phnom Penh?
The longest day in Phnom Penh falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 12h 48m of daylight, sunrise at 05:37 and sunset at 18:26.
When is the shortest day in Phnom Penh?
The shortest day in Phnom Penh falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 11h 27m of daylight, sunrise at 06:14 and sunset at 17:41.
How much does day length change through the year in Phnom Penh?
Between the longest and shortest day, Phnom Penh gains and loses about 1h 21m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Phnom Penh's coordinates with SunCalc, not looked up from a table.