AA 1846 then AA 2255 at Charlotte
Memphis → Charlotte → Pittsburgh
Timetable, Charlotte time
09:52AA 1846 from Memphis at the gate
08:55AA 2255 to Pittsburgh leaves the gate
23 h 03 apart on the timetable, overnight
AA 2255 leaves 23 h 03 after AA 1846 arrives on the timetable: more than half a day, so not a connection we count.