July 21, 2026 · Dadonghai, China
Sunset in Dadonghai today is at 19:21. Day length is 13h 4m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Dadonghai's coordinates and updated daily.
Dadonghai lies at 18°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Dadonghai.
The longest day in Dadonghai is around 13h 13m (around June 21). The shortest is around 11h 2m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 18:26 | 07:17 | 11h 9m |
| February | 18:43 | 07:11 | 11h 33m |
| March | 18:52 | 06:51 | 12h 1m |
| April | 18:59 | 06:26 | 12h 33m |
| May | 19:09 | 06:10 | 12h 59m |
| June | 19:20 | 06:07 | 13h 13m |
| July | 19:22 | 06:15 | 13h 8m |
| August | 19:10 | 06:25 | 12h 45m |
| September | 18:46 | 06:31 | 12h 15m |
| October | 18:21 | 06:36 | 11h 45m |
| November | 18:06 | 06:49 | 11h 17m |
| December | 18:09 | 07:06 | 11h 3m |