AA 3429 then CZ 438 at O'Hare
Cleveland → Chicago → Shanghai
Timetable, Chicago time
13:35AA 3429 from Cleveland at the gate
01:45CZ 438 to Shanghai leaves the gate
12 h 10 apart on the timetable, overnight
CZ 438 leaves 12 h 10 after AA 3429 arrives on the timetable: more than half a day, so not a connection we count.