AA 3012 then DL 5630 at Charlotte
Philadelphia → Charlotte → Boston
Timetable, Charlotte time
16:40AA 3012 from Philadelphia at the gate
14:37DL 5630 to Boston leaves the gate
21 h 57 apart on the timetable, overnight
DL 5630 leaves 21 h 57 after AA 3012 arrives on the timetable: more than half a day, so not a connection we count.