DL 2751 then DL 747 at JFK
Detroit → New York → Los Angeles
Timetable, New York time
11:57DL 2751 from Detroit at the gate
11:00DL 747 to Los Angeles leaves the gate
23 h 03 apart on the timetable, overnight
DL 747 leaves 23 h 03 after DL 2751 arrives on the timetable: more than half a day, so not a connection we count.