CA 1814 then CA 1211 at Beijing
Hefei → Beijing → Urumqi
Timetable, Beijing time
12:55CA 1814 from Hefei at the gate
11:05CA 1211 to Urumqi leaves the gate
22 h 10 apart on the timetable, overnight
CA 1211 leaves 22 h 10 after CA 1814 arrives on the timetable: more than half a day, so not a connection we count.