Longest and shortest day in Changzhou
In Changzhou, China, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 14m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 10h 4m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:04 | 18:11 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 04:55 | 19:08 | 14h 14m |
| September equinox | Tuesday, 22 September 2026 | 05:48 | 17:57 | 12h 9m |
| December solstice | Monday, 21 December 2026 | 06:55 | 17:00 | 10h 4m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:00 | 17:18 | 10h 18m |
| February | 06:42 | 17:46 | 11h 4m |
| March | 06:11 | 18:07 | 11h 57m |
| April | 05:32 | 18:28 | 12h 56m |
| May | 05:03 | 18:49 | 13h 46m |
| June | 04:54 | 19:07 | 14h 13m |
| July | 05:05 | 19:06 | 14h 2m |
| August | 05:24 | 18:44 | 13h 19m |
| September | 05:43 | 18:06 | 12h 23m |
| October | 06:03 | 17:28 | 11h 25m |
| November | 06:28 | 17:01 | 10h 33m |
| December | 06:52 | 16:57 | 10h 5m |
Why the day gets longer and shorter in Changzhou
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Changzhou 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 Changzhou sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Changzhou
When is the longest day in Changzhou?
The longest day in Changzhou falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 14m of daylight, sunrise at 04:55 and sunset at 19:08.
When is the shortest day in Changzhou?
The shortest day in Changzhou falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 10h 4m of daylight, sunrise at 06:55 and sunset at 17:00.
How much does day length change through the year in Changzhou?
Between the longest and shortest day, Changzhou gains and loses about 4h 10m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Changzhou's coordinates with SunCalc, not looked up from a table.