DL 2461 then DL 727 at Atlanta
Dayton → Atlanta → Washington National
Timetable, Atlanta time
20:33DL 2461 from Dayton at the gate
19:59DL 727 to Washington National leaves the gate
23 h 26 apart on the timetable, overnight
DL 727 leaves 23 h 26 after DL 2461 arrives on the timetable: more than half a day, so not a connection we count.