AA 5550 then DL 389 at Detroit
Charlotte → Detroit → Shanghai
Timetable, Detroit time
10:30AA 5550 from Charlotte at the gate
10:10DL 389 to Shanghai leaves the gate
23 h 40 apart on the timetable, overnight
DL 389 leaves 23 h 40 after AA 5550 arrives on the timetable: more than half a day, so not a connection we count.