AA 2771 then CA 1054 at O'Hare
Denver → Chicago → Beijing
Timetable, Chicago time
10:30AA 2771 from Denver at the gate
09:30CA 1054 to Beijing leaves the gate
23 h apart on the timetable, overnight
CA 1054 leaves 23 h after AA 2771 arrives on the timetable: more than half a day, so not a connection we count.