AA 3155 then CA 1054 at O'Hare
Miami → Chicago → Beijing
Timetable, Chicago time
09:32AA 3155 from Miami at the gate
09:30CA 1054 to Beijing leaves the gate
23 h 58 apart on the timetable, overnight
CA 1054 leaves 23 h 58 after AA 3155 arrives on the timetable: more than half a day, so not a connection we count.