AA 653 then CZ 2502 at O'Hare
Fort Myers → Chicago → Shanghai
Timetable, Chicago time
10:40AA 653 from Fort Myers at the gate
01:45CZ 2502 to Shanghai leaves the gate
15 h 05 apart on the timetable, overnight
CZ 2502 leaves 15 h 05 after AA 653 arrives on the timetable: more than half a day, so not a connection we count.