F9 1081 then DL 3020 at Atlanta
Washington → Atlanta → Memphis
Timetable, Atlanta time
20:27F9 1081 from Washington at the gate
20:10DL 3020 to Memphis leaves the gate
23 h 43 apart on the timetable, overnight
DL 3020 leaves 23 h 43 after F9 1081 arrives on the timetable: more than half a day, so not a connection we count.