B6 6902 then DL 5595 at JFK
Istanbul → New York → Washington
Timetable, New York time
11:55B6 6902 from Istanbul at the gate
10:25DL 5595 to Washington leaves the gate
22 h 30 apart on the timetable, overnight
DL 5595 leaves 22 h 30 after B6 6902 arrives on the timetable: more than half a day, so not a connection we count.