AA 2623 then AA 1502 at Charlotte
Columbus (Ohio) → Charlotte → Nashville
Timetable, Charlotte time
21:55AA 2623 from Columbus (Ohio) at the gate
19:50AA 1502 to Nashville leaves the gate
21 h 55 apart on the timetable, overnight
AA 1502 leaves 21 h 55 after AA 2623 arrives on the timetable: more than half a day, so not a connection we count.