DL 5356 then DL 5733 at JFK
Norfolk → New York → Boston
Timetable, New York time
10:00DL 5356 from Norfolk at the gate
09:50DL 5733 to Boston leaves the gate
23 h 50 apart on the timetable, overnight
DL 5733 leaves 23 h 50 after DL 5356 arrives on the timetable: more than half a day, so not a connection we count.