CA 1956 then 3U 8104 at Beijing
WGN → Beijing → Chongqing
Timetable, Beijing time
17:00CA 1956 from WGN at the gate
16:553U 8104 to Chongqing leaves the gate
23 h 55 apart on the timetable, overnight
3U 8104 leaves 23 h 55 after CA 1956 arrives on the timetable: more than half a day, so not a connection we count.