B6 574 then WN 1292 at Boston
New York JFK → Boston → Nashville
Timetable, Boston time
19:51B6 574 from New York JFK at the gate
19:30WN 1292 to Nashville leaves the gate
23 h 39 apart on the timetable, overnight
WN 1292 leaves 23 h 39 after B6 574 arrives on the timetable: more than half a day, so not a connection we count.