DL 1646 then DL 1627 at Detroit
Atlanta → Detroit → Memphis
Timetable, Detroit time
09:22DL 1646 from Atlanta at the gate
08:27DL 1627 to Memphis leaves the gate
23 h 05 apart on the timetable, overnight
DL 1627 leaves 23 h 05 after DL 1646 arrives on the timetable: more than half a day, so not a connection we count.