DL 1007 then DL 1961 at Atlanta
Washington National → Atlanta → Washington National
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
11:10DL 1961 to Washington National leaves the gate
13 h 29 apart on the timetable, overnight
DL 1961 leaves 13 h 29 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.