AA 2585 then DL 5626 at Charlotte
Jacksonville → Charlotte → Boston
Timetable, Charlotte time
12:29AA 2585 from Jacksonville at the gate
09:50DL 5626 to Boston leaves the gate
21 h 21 apart on the timetable, overnight
DL 5626 leaves 21 h 21 after AA 2585 arrives on the timetable: more than half a day, so not a connection we count.