DL 1007 then F9 9573 at Atlanta
Washington National → Atlanta → Nashville
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
18:30F9 9573 to Nashville leaves the gate
20 h 49 apart on the timetable, overnight
F9 9573 leaves 20 h 49 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.