Longest and shortest day in Daejeon
In Daejeon, South Korea, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 39m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 9h 41m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:34 | 18:41 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:12 | 19:51 | 14h 39m |
| September equinox | Tuesday, 22 September 2026 | 06:17 | 18:28 | 12h 10m |
| December solstice | Monday, 21 December 2026 | 07:37 | 17:18 | 9h 41m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:41 | 17:38 | 9h 57m |
| February | 07:18 | 18:10 | 10h 52m |
| March | 06:42 | 18:37 | 11h 55m |
| April | 05:57 | 19:03 | 13h 6m |
| May | 05:24 | 19:29 | 14h 5m |
| June | 05:12 | 19:49 | 14h 37m |
| July | 05:24 | 19:48 | 14h 24m |
| August | 05:47 | 19:21 | 13h 34m |
| September | 06:12 | 18:38 | 12h 26m |
| October | 06:37 | 17:54 | 11h 18m |
| November | 07:07 | 17:22 | 10h 15m |
| December | 07:34 | 17:16 | 9h 42m |
Why the day gets longer and shorter in Daejeon
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Daejeon 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 Daejeon sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Daejeon
When is the longest day in Daejeon?
The longest day in Daejeon falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 39m of daylight, sunrise at 05:12 and sunset at 19:51.
When is the shortest day in Daejeon?
The shortest day in Daejeon falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 9h 41m of daylight, sunrise at 07:37 and sunset at 17:18.
How much does day length change through the year in Daejeon?
Between the longest and shortest day, Daejeon gains and loses about 4h 58m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Daejeon's coordinates with SunCalc, not looked up from a table.