WN 3534 then B6 520 at Atlanta
Pittsburgh → Atlanta → New York JFK
Timetable, Atlanta time
18:45WN 3534 from Pittsburgh at the gate
18:41B6 520 to New York JFK leaves the gate
23 h 56 apart on the timetable, overnight
B6 520 leaves 23 h 56 after WN 3534 arrives on the timetable: more than half a day, so not a connection we count.