Seosan
Sunrise and sunset in Seosan
Today’s sunrise, sunset and twilight in Seosan, in local time. At 36.8° N, the day lasts from 9 h 38 min at the winter solstice to 14 h 41 min at the summer solstice.
Today · worked out at
Thursday, October 22: sunrise at 06:47, sunset at 17:49.
Day length 11 h 01 min, 2 min 12 s shorter than yesterday.
Solar noon at 12:18, with the Sun 42° above the horizon.
Times are Seosan time (GMT+9).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 05:21 | 19:15 |
| Nautical twilight | 05:51 | 18:45 |
| Civil twilight | 06:21 | 18:15 |
| Sunrise and sunset | 06:47 | 17:49 |
| Golden hour | 06:47–07:23 | 17:13–17:49 |
Each twilight begins at the morning time and ends at the evening one.
The year in Seosan
- Longest day: June 21, 14 h 41 min, from sunrise at 05:15 to sunset at 19:56.
- Shortest day: December 22, 9 h 38 min, from sunrise at 07:43 to sunset at 17:21.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 07:43 | 17:47 | 10 h 04 min |
| February 21 | 07:15 | 18:20 | 11 h 04 min |
| March 21 | 06:37 | 18:46 | 12 h 09 min |
| April 21 | 05:52 | 19:13 | 13 h 21 min |
| May 21 | 05:22 | 19:39 | 14 h 17 min |
| June 21 | 05:15 | 19:56 | 14 h 41 min |
| July 21 | 05:30 | 19:49 | 14 h 19 min |
| August 21 | 05:55 | 19:18 | 13 h 22 min |
| September 21 | 06:20 | 18:33 | 12 h 12 min |
| October 21 | 06:46 | 17:50 | 11 h 04 min |
| November 21 | 07:17 | 17:21 | 10 h 04 min |
| December 21 | 07:42 | 17:21 | 9 h 38 min |
Good to know
- Sunrise and sunset are when the top of the Sun meets a level horizon, allowing for the usual bending of light by the air. Hills, buildings and height shift what you see by a few minutes.
- Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
- Worked out when the page loads from NOAA’s solar equations, for 36.8° N, 126.5° E, and accurate to about a minute.
How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets
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