DL 5232 then UA 1001 at Detroit
Memphis → Detroit → Denver
Timetable, Detroit time
20:50DL 5232 from Memphis at the gate
15:24UA 1001 to Denver leaves the gate
18 h 34 apart on the timetable, overnight
UA 1001 leaves 18 h 34 after DL 5232 arrives on the timetable: more than half a day, so not a connection we count.