AA 974 then DL 4908 at JFK
Rio De Janeiro → New York → Nashville
Timetable, New York time
07:00AA 974 from Rio De Janeiro at the gate
19:05DL 4908 to Nashville leaves the gate
12 h 05 apart on the timetable
DL 4908 leaves 12 h 05 after AA 974 arrives on the timetable: more than half a day, so not a connection we count.