DL 1007 then DL 1942 at Atlanta
Washington National → Atlanta → Memphis
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
14:10DL 1942 to Memphis leaves the gate
16 h 29 apart on the timetable, overnight
DL 1942 leaves 16 h 29 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.