Longest and shortest day in Rui'an
In Rui'an, China, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 13h 54m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 10h 23m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:01 | 18:08 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:02 | 18:56 | 13h 54m |
| September equinox | Tuesday, 22 September 2026 | 05:45 | 17:54 | 12h 9m |
| December solstice | Monday, 21 December 2026 | 06:43 | 17:06 | 10h 23m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 06:49 | 17:23 | 10h 34m |
| February | 06:35 | 17:48 | 11h 13m |
| March | 06:07 | 18:05 | 11h 58m |
| April | 05:33 | 18:22 | 12h 49m |
| May | 05:08 | 18:39 | 13h 31m |
| June | 05:01 | 18:54 | 13h 53m |
| July | 05:11 | 18:55 | 13h 44m |
| August | 05:27 | 18:35 | 13h 8m |
| September | 05:42 | 18:02 | 12h 20m |
| October | 05:57 | 17:28 | 11h 31m |
| November | 06:18 | 17:05 | 10h 47m |
| December | 06:40 | 17:04 | 10h 24m |
Why the day gets longer and shorter in Rui'an
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Rui'an 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 Rui'an sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Rui'an
When is the longest day in Rui'an?
The longest day in Rui'an falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 13h 54m of daylight, sunrise at 05:02 and sunset at 18:56.
When is the shortest day in Rui'an?
The shortest day in Rui'an falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 10h 23m of daylight, sunrise at 06:43 and sunset at 17:06.
How much does day length change through the year in Rui'an?
Between the longest and shortest day, Rui'an gains and loses about 3h 31m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Rui'an's coordinates with SunCalc, not looked up from a table.