Helong
Sunrise and sunset in Helong
Today’s sunrise, sunset and twilight in Helong, in local time. At 42.5° N, the day lasts from 9 h 03 min at the winter solstice to 15 h 18 min at the summer solstice.
Today · worked out at
Thursday, October 22: sunrise at 05:44, sunset at 16:31.
Day length 10 h 47 min, 2 min 43 s shorter than yesterday.
Solar noon at 11:08, with the Sun 36° above the horizon.
Times are Helong time (GMT+8).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 04:10 | 18:05 |
| Nautical twilight | 04:43 | 17:33 |
| Civil twilight | 05:16 | 17:00 |
| Sunrise and sunset | 05:44 | 16:31 |
| Golden hour | 05:44–06:23 | 15:52–16:31 |
Each twilight begins at the morning time and ends at the evening one.
The year in Helong
- Longest day: June 21, 15 h 18 min, from sunrise at 03:46 to sunset at 19:04.
- Shortest day: December 22, 9 h 03 min, from sunrise at 06:50 to sunset at 15:54.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 06:47 | 16:22 | 9 h 35 min |
| February 21 | 06:12 | 17:03 | 10 h 50 min |
| March 21 | 05:26 | 17:36 | 12 h 10 min |
| April 21 | 04:34 | 18:12 | 13 h 38 min |
| May 21 | 03:56 | 18:44 | 14 h 48 min |
| June 21 | 03:46 | 19:04 | 15 h 18 min |
| July 21 | 04:04 | 18:55 | 14 h 51 min |
| August 21 | 04:36 | 18:17 | 13 h 40 min |
| September 21 | 05:09 | 17:23 | 12 h 14 min |
| October 21 | 05:43 | 16:33 | 10 h 50 min |
| November 21 | 06:22 | 15:57 | 9 h 35 min |
| December 21 | 06:50 | 15:53 | 9 h 03 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 42.5° N, 129° 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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