CA 1920 then CA 1211 at Beijing
Haikou → Beijing → Urumqi
Timetable, Beijing time
12:55CA 1920 from Haikou at the gate
11:00CA 1211 to Urumqi leaves the gate
22 h 05 apart on the timetable, overnight
CA 1211 leaves 22 h 05 after CA 1920 arrives on the timetable: more than half a day, so not a connection we count.