July 21, 2026 · Gunsan, South Korea
Sunset in Gunsan today is at 19:48. Day length is 14h 16m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Gunsan's coordinates and updated daily.
Gunsan lies at 36°N. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Gunsan.
The longest day in Gunsan is around 14h 36m (around June 21). The shortest is around 9h 43m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:42 | 07:44 | 9h 58m |
| February | 18:14 | 07:22 | 10h 52m |
| March | 18:40 | 06:46 | 11h 55m |
| April | 19:06 | 06:02 | 13h 5m |
| May | 19:32 | 05:29 | 14h 3m |
| June | 19:52 | 05:17 | 14h 35m |
| July | 19:51 | 05:28 | 14h 23m |
| August | 19:25 | 05:52 | 13h 33m |
| September | 18:43 | 06:16 | 12h 27m |
| October | 17:59 | 06:40 | 11h 20m |
| November | 17:27 | 07:10 | 10h 17m |
| December | 17:21 | 07:37 | 9h 44m |