DL 5356 then DL 625 at JFK
Norfolk → New York → Mexico City
Timetable, New York time
10:00DL 5356 from Norfolk at the gate
09:40DL 625 to Mexico City leaves the gate
23 h 40 apart on the timetable, overnight
DL 625 leaves 23 h 40 after DL 5356 arrives on the timetable: more than half a day, so not a connection we count.