B6 519 then DL 2511 at Atlanta
New York JFK → Atlanta → Rochester
Timetable, Atlanta time
09:16B6 519 from New York JFK at the gate
09:01DL 2511 to Rochester leaves the gate
23 h 45 apart on the timetable, overnight
DL 2511 leaves 23 h 45 after B6 519 arrives on the timetable: more than half a day, so not a connection we count.