AA 6060 then DL 1329 at Philadelphia
Greensboro → Philadelphia → Atlanta
Timetable, Philadelphia time
07:35AA 6060 from Greensboro at the gate
19:37DL 1329 to Atlanta leaves the gate
12 h 02 apart on the timetable
DL 1329 leaves 12 h 02 after AA 6060 arrives on the timetable: more than half a day, so not a connection we count.