UA 1752 then CA 1018 at O'Hare
Houston → Chicago → Shanghai
Timetable, Chicago time
23:25UA 1752 from Houston at the gate
22:35CA 1018 to Shanghai leaves the gate
23 h 10 apart on the timetable, overnight
CA 1018 leaves 23 h 10 after UA 1752 arrives on the timetable: more than half a day, so not a connection we count.