Longest and shortest day in Zhoukou
In Zhoukou, China, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 23m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 9h 55m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:25 | 18:32 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:11 | 19:34 | 14h 23m |
| September equinox | Tuesday, 22 September 2026 | 06:09 | 18:18 | 12h 10m |
| December solstice | Monday, 21 December 2026 | 07:21 | 17:16 | 9h 55m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:26 | 17:35 | 10h 10m |
| February | 07:06 | 18:05 | 10h 59m |
| March | 06:32 | 18:28 | 11h 56m |
| April | 05:51 | 18:51 | 13h 0m |
| May | 05:21 | 19:14 | 13h 53m |
| June | 05:10 | 19:33 | 14h 22m |
| July | 05:21 | 19:32 | 14h 11m |
| August | 05:43 | 19:08 | 13h 25m |
| September | 06:04 | 18:28 | 12h 24m |
| October | 06:25 | 17:48 | 11h 22m |
| November | 06:52 | 17:18 | 10h 26m |
| December | 07:18 | 17:14 | 9h 56m |
Why the day gets longer and shorter in Zhoukou
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Zhoukou 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 Zhoukou sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Zhoukou
When is the longest day in Zhoukou?
The longest day in Zhoukou falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 23m of daylight, sunrise at 05:11 and sunset at 19:34.
When is the shortest day in Zhoukou?
The shortest day in Zhoukou falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 9h 55m of daylight, sunrise at 07:21 and sunset at 17:16.
How much does day length change through the year in Zhoukou?
Between the longest and shortest day, Zhoukou gains and loses about 4h 28m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Zhoukou's coordinates with SunCalc, not looked up from a table.