B6 1185 then DL 747 at JFK
Rochester → New York → Los Angeles
Timetable, New York time
12:20B6 1185 from Rochester at the gate
11:00DL 747 to Los Angeles leaves the gate
22 h 40 apart on the timetable, overnight
DL 747 leaves 22 h 40 after B6 1185 arrives on the timetable: more than half a day, so not a connection we count.