DL 8913 then DL 520 at Atlanta
Nashville → Atlanta → New York LaGuardia
Timetable, Atlanta time
00:06DL 8913 from Nashville at the gate
21:30DL 520 to New York LaGuardia leaves the gate
21 h 24 apart on the timetable
DL 520 leaves 21 h 24 after DL 8913 arrives on the timetable: more than half a day, so not a connection we count.