AA 2564 then CZ 428 at O'Hare
Los Angeles → Chicago → Shanghai
Timetable, Chicago time
12:21AA 2564 from Los Angeles at the gate
00:30CZ 428 to Shanghai leaves the gate
12 h 09 apart on the timetable, overnight
CZ 428 leaves 12 h 09 after AA 2564 arrives on the timetable: more than half a day, so not a connection we count.