B6 1185 then DL 5595 at JFK
Rochester → New York → Washington
Timetable, New York time
12:38B6 1185 from Rochester at the gate
10:25DL 5595 to Washington leaves the gate
21 h 47 apart on the timetable, overnight
DL 5595 leaves 21 h 47 after B6 1185 arrives on the timetable: more than half a day, so not a connection we count.