DL 5232 then DL 1557 at Detroit
Memphis → Detroit → Nashville
Timetable, Detroit time
20:50DL 5232 from Memphis at the gate
12:34DL 1557 to Nashville leaves the gate
15 h 44 apart on the timetable, overnight
DL 1557 leaves 15 h 44 after DL 5232 arrives on the timetable: more than half a day, so not a connection we count.