Sunrise and sunset in Koesan, South Korea

Today’s sunrise, sunset and twilight in Koesan, 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.

  • 17:37sunset today
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Today · worked out at

In Koesan, South Korea on Tuesday, October 27, the Sun rises at 06:47 and sets at 17:37.

Day length 10 h 51 min, 2 min 9 s shorter than yesterday.

Solar noon at 12:12, with the Sun 40° above the horizon.

Times are Koesan time (GMT+9).

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Twilight and golden hour today

TodayMorningEvening
Astronomical twilight05:2019:04
Nautical twilight05:5018:34
Civil twilight06:2018:04
Sunrise and sunset06:4717:37
Golden hour06:47–07:2317:01–17:37

Each twilight begins at the morning time and ends at the evening one.

The year in Koesan

  • Longest day: June 21, 14 h 41 min, from sunrise at 05:09 to sunset at 19:51.
  • Shortest day: December 22, 9 h 38 min, from sunrise at 07:38 to sunset at 17:16.

Sunrise and sunset on the 21st of each month, 2026

DateSunriseSunsetDay length
January 2107:3817:4110 h 03 min
February 2107:1018:1411 h 04 min
March 2106:3118:4112 h 09 min
April 2105:4719:0813 h 21 min
May 2105:1719:3414 h 17 min
June 2105:0919:5114 h 41 min
July 2105:2519:4414 h 19 min
August 2105:5019:1313 h 23 min
September 2106:1518:2712 h 12 min
October 2106:4117:4511 h 04 min
November 2107:1217:1610 h 04 min
December 2107:3717:159 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, 127.8° 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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