DL 343 then DL 4644 at Atlanta
Washington National → Atlanta → Moline
Timetable, Atlanta time
09:55DL 343 from Washington National at the gate
09:11DL 4644 to Moline leaves the gate
23 h 16 apart on the timetable, overnight
DL 4644 leaves 23 h 16 after DL 343 arrives on the timetable: more than half a day, so not a connection we count.