CA 1270 then HU 7482 at Beijing
Yan'an → Beijing → Haikou
Timetable, Beijing time
21:55CA 1270 from Yan'an at the gate
10:00HU 7482 to Haikou leaves the gate
12 h 05 apart on the timetable, overnight
HU 7482 leaves 12 h 05 after CA 1270 arrives on the timetable: more than half a day, so not a connection we count.