AA 1992 then AA 3865 at Charlotte
St Louis → Charlotte → Hilton Head
Timetable, Charlotte time
13:29AA 1992 from St Louis at the gate
10:35AA 3865 to Hilton Head leaves the gate
21 h 06 apart on the timetable, overnight
AA 3865 leaves 21 h 06 after AA 1992 arrives on the timetable: more than half a day, so not a connection we count.