Sunrise and sunset in Changsu, South Korea
Sunrise, sunset and twilight for Changsu today, in local time. At 35.6° N, days run from 9 h 45 min at the winter solstice to 14 h 34 min at the summer solstice.
- 17:40sunset today
Today · worked out at
The Sun is up from 06:46 to 17:40 in Changsu, South Korea on Tuesday, October 27.
Day length 10 h 54 min, 2 min 3 s shorter than yesterday.
Solar noon at 12:13, with the Sun 42° above the horizon.
Times are Changsu time (GMT+9).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 05:20 | 19:06 |
| Nautical twilight | 05:50 | 18:36 |
| Civil twilight | 06:20 | 18:06 |
| Sunrise and sunset | 06:46 | 17:40 |
| Golden hour | 06:46–07:22 | 17:05–17:40 |
Each twilight begins at the morning time and ends at the evening one.
The year in Changsu
- Longest day: June 21, 14 h 34 min, from sunrise at 05:14 to sunset at 19:48.
- Shortest day: December 22, 9 h 45 min, from sunrise at 07:36 to sunset at 17:20.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 07:36 | 17:45 | 10 h 09 min |
| February 21 | 07:10 | 18:17 | 11 h 07 min |
| March 21 | 06:32 | 18:42 | 12 h 09 min |
| April 21 | 05:50 | 19:07 | 13 h 18 min |
| May 21 | 05:21 | 19:32 | 14 h 11 min |
| June 21 | 05:14 | 19:48 | 14 h 34 min |
| July 21 | 05:29 | 19:42 | 14 h 13 min |
| August 21 | 05:53 | 19:12 | 13 h 19 min |
| September 21 | 06:16 | 18:28 | 12 h 12 min |
| October 21 | 06:41 | 17:47 | 11 h 06 min |
| November 21 | 07:11 | 17:19 | 10 h 09 min |
| December 21 | 07:35 | 17:20 | 9 h 45 min |
Good to know
- Sunrise and sunset mark the moment the Sun’s upper edge touches a level horizon, with the air’s usual bending of light allowed for. Hills, buildings and altitude move 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 35.6° N, 127.5° 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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