Longest and shortest day in Sanmenxia
In Sanmenxia, China, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 30m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 9h 49m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:39 | 18:46 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:22 | 19:51 | 14h 30m |
| September equinox | Tuesday, 22 September 2026 | 06:22 | 18:32 | 12h 10m |
| December solstice | Monday, 21 December 2026 | 07:38 | 17:27 | 9h 49m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:42 | 17:46 | 10h 4m |
| February | 07:21 | 18:17 | 10h 56m |
| March | 06:46 | 18:42 | 11h 56m |
| April | 06:04 | 19:06 | 13h 3m |
| May | 05:32 | 19:30 | 13h 58m |
| June | 05:21 | 19:50 | 14h 29m |
| July | 05:32 | 19:49 | 14h 16m |
| August | 05:55 | 19:23 | 13h 28m |
| September | 06:17 | 18:42 | 12h 25m |
| October | 06:40 | 18:01 | 11h 20m |
| November | 07:08 | 17:30 | 10h 22m |
| December | 07:34 | 17:25 | 9h 50m |
Why the day gets longer and shorter in Sanmenxia
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Sanmenxia 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 Sanmenxia sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Sanmenxia
When is the longest day in Sanmenxia?
The longest day in Sanmenxia falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 30m of daylight, sunrise at 05:22 and sunset at 19:51.
When is the shortest day in Sanmenxia?
The shortest day in Sanmenxia falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 9h 49m of daylight, sunrise at 07:38 and sunset at 17:27.
How much does day length change through the year in Sanmenxia?
Between the longest and shortest day, Sanmenxia gains and loses about 4h 41m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Sanmenxia's coordinates with SunCalc, not looked up from a table.