DL 5595 then DL 2677 at Boston
New York JFK → Boston → Nashville
Timetable, Boston time
14:54DL 5595 from New York JFK at the gate
14:45DL 2677 to Nashville leaves the gate
23 h 51 apart on the timetable, overnight
DL 2677 leaves 23 h 51 after DL 5595 arrives on the timetable: more than half a day, so not a connection we count.