July 21, 2026 · Guankou, China
Sunset in Guankou today is at 19:23. Day length is 13h 41m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Guankou's coordinates and updated daily.
Guankou lies at 28°N. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
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 Guankou.
The longest day in Guankou is around 13h 56m (around June 21). The shortest is around 10h 21m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:51 | 07:19 | 10h 32m |
| February | 18:16 | 07:05 | 11h 12m |
| March | 18:34 | 06:37 | 11h 58m |
| April | 18:51 | 06:02 | 12h 49m |
| May | 19:09 | 05:37 | 13h 32m |
| June | 19:24 | 05:29 | 13h 55m |
| July | 19:25 | 05:39 | 13h 46m |
| August | 19:06 | 05:56 | 13h 10m |
| September | 18:33 | 06:11 | 12h 21m |
| October | 17:58 | 06:26 | 11h 32m |
| November | 17:34 | 06:48 | 10h 46m |
| December | 17:32 | 07:10 | 10h 22m |