AA 6246 then Y8 7456 at O'Hare
Nashville → Chicago → Shanghai
Timetable, Chicago time
19:51AA 6246 from Nashville at the gate
19:10Y8 7456 to Shanghai leaves the gate
23 h 19 apart on the timetable, overnight
Y8 7456 leaves 23 h 19 after AA 6246 arrives on the timetable: more than half a day, so not a connection we count.