Tongzhou
Sunrise and sunset in Tongzhou
Today’s sunrise, sunset and twilight in Tongzhou, in local time. At 39.9° N, the day lasts from 9 h 20 min at the winter solstice to 15 h 00 min at the summer solstice.
Today · worked out at
Thursday, October 22: sunrise at 06:30, sunset at 17:24.
Day length 10 h 54 min, 2 min 28 s shorter than yesterday.
Solar noon at 11:57, with the Sun 39° above the horizon.
Times are Tongzhou time (GMT+8).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 05:00 | 18:54 |
| Nautical twilight | 05:31 | 18:23 |
| Civil twilight | 06:03 | 17:51 |
| Sunrise and sunset | 06:30 | 17:24 |
| Golden hour | 06:30–07:07 | 16:47–17:24 |
Each twilight begins at the morning time and ends at the evening one.
The year in Tongzhou
- Longest day: June 21, 15 h 00 min, from sunrise at 04:44 to sunset at 19:45.
- Shortest day: December 22, 9 h 20 min, from sunrise at 07:31 to sunset at 16:51.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 07:30 | 17:19 | 9 h 49 min |
| February 21 | 06:58 | 17:55 | 10 h 57 min |
| March 21 | 06:15 | 18:25 | 12 h 10 min |
| April 21 | 05:27 | 18:57 | 13 h 30 min |
| May 21 | 04:53 | 19:26 | 14 h 33 min |
| June 21 | 04:44 | 19:45 | 15 h 00 min |
| July 21 | 05:01 | 19:37 | 14 h 35 min |
| August 21 | 05:30 | 19:02 | 13 h 32 min |
| September 21 | 05:59 | 18:12 | 12 h 13 min |
| October 21 | 06:29 | 17:25 | 10 h 56 min |
| November 21 | 07:04 | 16:53 | 9 h 49 min |
| December 21 | 07:31 | 16:51 | 9 h 20 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 39.9° N, 116.7° 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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