AA 3865 then AA 3091 at Charlotte
Hilton Head → Charlotte → Nashville
Timetable, Charlotte time
13:44AA 3865 from Hilton Head at the gate
12:30AA 3091 to Nashville leaves the gate
22 h 46 apart on the timetable, overnight
AA 3091 leaves 22 h 46 after AA 3865 arrives on the timetable: more than half a day, so not a connection we count.