CA 1246 then HU 7635 at Beijing
Hotan → Beijing → Changsha
Timetable, Beijing time
23:55CA 1246 from Hotan at the gate
22:00HU 7635 to Changsha leaves the gate
22 h 05 apart on the timetable, overnight
HU 7635 leaves 22 h 05 after CA 1246 arrives on the timetable: more than half a day, so not a connection we count.