CA 1256 then HU 7635 at Beijing
Yining → Beijing → Changsha
Timetable, Beijing time
23:55CA 1256 from Yining at the gate
22:05HU 7635 to Changsha leaves the gate
22 h 10 apart on the timetable, overnight
HU 7635 leaves 22 h 10 after CA 1256 arrives on the timetable: more than half a day, so not a connection we count.