AA 4784 then CZ 436 at O'Hare
Cleveland → Chicago → Shanghai
Timetable, Chicago time
21:29AA 4784 from Cleveland at the gate
19:25CZ 436 to Shanghai leaves the gate
21 h 56 apart on the timetable, overnight
CZ 436 leaves 21 h 56 after AA 4784 arrives on the timetable: more than half a day, so not a connection we count.