DL 1680 then B6 1520 at Atlanta
Cincinnati → Atlanta → New York JFK
Timetable, Atlanta time
21:43DL 1680 from Cincinnati at the gate
10:09B6 1520 to New York JFK leaves the gate
12 h 26 apart on the timetable, overnight
B6 1520 leaves 12 h 26 after DL 1680 arrives on the timetable: more than half a day, so not a connection we count.