DL 5641 then DL 5714 at Boston
Cleveland → Boston → Philadelphia
Timetable, Boston time
19:35DL 5641 from Cleveland at the gate
17:25DL 5714 to Philadelphia leaves the gate
21 h 50 apart on the timetable, overnight
DL 5714 leaves 21 h 50 after DL 5641 arrives on the timetable: more than half a day, so not a connection we count.