DL 5232 then DL 1171 at Detroit
Memphis → Detroit → Boston
Timetable, Detroit time
20:50DL 5232 from Memphis at the gate
14:17DL 1171 to Boston leaves the gate
17 h 27 apart on the timetable, overnight
DL 1171 leaves 17 h 27 after DL 5232 arrives on the timetable: more than half a day, so not a connection we count.