AA 753 then DL 3020 at Atlanta
Philadelphia → Atlanta → Memphis
Timetable, Atlanta time
21:00AA 753 from Philadelphia at the gate
19:44DL 3020 to Memphis leaves the gate
22 h 44 apart on the timetable, overnight
DL 3020 leaves 22 h 44 after AA 753 arrives on the timetable: more than half a day, so not a connection we count.