AA 5408 then CZ 2502 at O'Hare
Knoxville → Chicago → Shanghai
Timetable, Chicago time
12:40AA 5408 from Knoxville at the gate
01:45CZ 2502 to Shanghai leaves the gate
13 h 05 apart on the timetable, overnight
CZ 2502 leaves 13 h 05 after AA 5408 arrives on the timetable: more than half a day, so not a connection we count.