AA 5503 then DL 2398 at Atlanta
Washington National → Atlanta → New York JFK
Timetable, Atlanta time
16:16AA 5503 from Washington National at the gate
15:16DL 2398 to New York JFK leaves the gate
23 h apart on the timetable, overnight
DL 2398 leaves 23 h after AA 5503 arrives on the timetable: more than half a day, so not a connection we count.