DL 1625 then DL 4644 at Atlanta
Memphis → Atlanta → Moline
Timetable, Atlanta time
10:20DL 1625 from Memphis at the gate
09:11DL 4644 to Moline leaves the gate
22 h 51 apart on the timetable, overnight
DL 4644 leaves 22 h 51 after DL 1625 arrives on the timetable: more than half a day, so not a connection we count.