9C 8734 then CA 4556 at Pudong
Taiyuan → Shanghai → Chongqing
Timetable, Shanghai time
21:409C 8734 from Taiyuan at the gate
20:40CA 4556 to Chongqing leaves the gate
23 h apart on the timetable, overnight
CA 4556 leaves 23 h after 9C 8734 arrives on the timetable: more than half a day, so not a connection we count.