Changshu
Sunrise and sunset in Changshu
Today’s sunrise, sunset and twilight in Changshu, in local time. At 31.6° N, the day lasts from 10 h 05 min at the winter solstice to 14 h 13 min at the summer solstice.
Today · worked out at
Thursday, October 22: sunrise at 06:04, sunset at 17:17.
Day length 11 h 13 min, 1 min 48 s shorter than yesterday.
Solar noon at 11:41, with the Sun 47° above the horizon.
Times are Changshu time (GMT+8).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 04:43 | 18:39 |
| Nautical twilight | 05:11 | 18:10 |
| Civil twilight | 05:40 | 17:42 |
| Sunrise and sunset | 06:04 | 17:17 |
| Golden hour | 06:04–06:38 | 16:44–17:17 |
Each twilight begins at the morning time and ends at the evening one.
The year in Changshu
- Longest day: June 21, 14 h 13 min, from sunrise at 04:52 to sunset at 19:05.
- Shortest day: December 22, 10 h 05 min, from sunrise at 06:52 to sunset at 16:57.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 06:55 | 17:21 | 10 h 25 min |
| February 21 | 06:33 | 17:48 | 11 h 15 min |
| March 21 | 06:00 | 18:08 | 12 h 09 min |
| April 21 | 05:22 | 18:29 | 13 h 07 min |
| May 21 | 04:57 | 18:50 | 13 h 53 min |
| June 21 | 04:52 | 19:05 | 14 h 13 min |
| July 21 | 05:05 | 19:00 | 13 h 55 min |
| August 21 | 05:25 | 18:34 | 13 h 09 min |
| September 21 | 05:44 | 17:55 | 12 h 11 min |
| October 21 | 06:04 | 17:18 | 11 h 15 min |
| November 21 | 06:29 | 16:55 | 10 h 26 min |
| December 21 | 06:52 | 16:57 | 10 h 05 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 31.6° N, 120.7° 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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