WN 4582 then AA 1508 at Charlotte
Nashville → Charlotte → Washington National
Timetable, Charlotte time
22:45WN 4582 from Nashville at the gate
22:38AA 1508 to Washington National leaves the gate
23 h 53 apart on the timetable, overnight
AA 1508 leaves 23 h 53 after WN 4582 arrives on the timetable: more than half a day, so not a connection we count.