AA 2124 then MU 586 at LAX
Chicago O'Hare → Los Angeles → Shanghai
Timetable, Los Angeles time
11:37AA 2124 from Chicago O'Hare at the gate
11:30MU 586 to Shanghai leaves the gate
23 h 53 apart on the timetable, overnight
MU 586 leaves 23 h 53 after AA 2124 arrives on the timetable: more than half a day, so not a connection we count.