DL 5359 then DL 1454 at Detroit
Cleveland → Detroit → Washington National
Timetable, Detroit time
15:14DL 5359 from Cleveland at the gate
14:59DL 1454 to Washington National leaves the gate
23 h 45 apart on the timetable, overnight
DL 1454 leaves 23 h 45 after DL 5359 arrives on the timetable: more than half a day, so not a connection we count.