AA 4525 then CZ 438 at O'Hare
Madison → Chicago → Shanghai
Timetable, Chicago time
10:40AA 4525 from Madison at the gate
01:45CZ 438 to Shanghai leaves the gate
15 h 05 apart on the timetable, overnight
CZ 438 leaves 15 h 05 after AA 4525 arrives on the timetable: more than half a day, so not a connection we count.