CA 1450 then CA 1211 at Beijing
Chongqing → Beijing → Urumqi
Timetable, Beijing time
12:25CA 1450 from Chongqing at the gate
11:05CA 1211 to Urumqi leaves the gate
22 h 40 apart on the timetable, overnight
CA 1211 leaves 22 h 40 after CA 1450 arrives on the timetable: more than half a day, so not a connection we count.