Longest and shortest day in Heshan
In Heshan, China, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 13h 58m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 10h 19m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:35 | 18:41 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:33 | 19:31 | 13h 58m |
| September equinox | Tuesday, 22 September 2026 | 06:18 | 18:27 | 12h 9m |
| December solstice | Monday, 21 December 2026 | 07:18 | 17:38 | 10h 19m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:24 | 17:55 | 10h 31m |
| February | 07:09 | 18:20 | 11h 11m |
| March | 06:41 | 18:38 | 11h 58m |
| April | 06:05 | 18:56 | 12h 50m |
| May | 05:40 | 19:13 | 13h 34m |
| June | 05:32 | 19:29 | 13h 57m |
| July | 05:42 | 19:30 | 13h 48m |
| August | 05:59 | 19:10 | 13h 10m |
| September | 06:15 | 18:36 | 12h 21m |
| October | 06:31 | 18:01 | 11h 30m |
| November | 06:52 | 17:37 | 10h 44m |
| December | 07:15 | 17:35 | 10h 20m |
Why the day gets longer and shorter in Heshan
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Heshan 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 Heshan sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Heshan
When is the longest day in Heshan?
The longest day in Heshan falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 13h 58m of daylight, sunrise at 05:33 and sunset at 19:31.
When is the shortest day in Heshan?
The shortest day in Heshan falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 10h 19m of daylight, sunrise at 07:18 and sunset at 17:38.
How much does day length change through the year in Heshan?
Between the longest and shortest day, Heshan gains and loses about 3h 39m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Heshan's coordinates with SunCalc, not looked up from a table.