July 21, 2026 · Datong, China
Sunset in Datong today is at 19:52. Day length is 14h 37m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Datong's coordinates and updated daily.
Datong lies at 40°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 Datong.
The longest day in Datong is around 15h 1m (around June 21). The shortest is around 9h 19m (around December 21). Days are currently getting shorter — losing about 2 minutes per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:25 | 07:48 | 9h 37m |
| February | 18:02 | 07:22 | 10h 41m |
| March | 18:33 | 06:40 | 11h 53m |
| April | 19:05 | 05:50 | 13h 14m |
| May | 19:35 | 05:13 | 14h 23m |
| June | 19:58 | 04:58 | 15h 0m |
| July | 19:56 | 05:10 | 14h 46m |
| August | 19:26 | 05:39 | 13h 48m |
| September | 18:38 | 06:08 | 12h 30m |
| October | 17:49 | 06:37 | 11h 12m |
| November | 17:12 | 07:12 | 9h 60m |
| December | 17:03 | 07:42 | 9h 21m |