AA 3335 then CZ 2508 at O'Hare
Appleton → Chicago → Guangzhou
Timetable, Chicago time
19:59AA 3335 from Appleton at the gate
19:50CZ 2508 to Guangzhou leaves the gate
23 h 51 apart on the timetable, overnight
CZ 2508 leaves 23 h 51 after AA 3335 arrives on the timetable: more than half a day, so not a connection we count.