DL 1152 then DL 1617 at Atlanta
Philadelphia → Atlanta → Greensboro
Timetable, Atlanta time
08:46DL 1152 from Philadelphia at the gate
20:55DL 1617 to Greensboro leaves the gate
12 h 09 apart on the timetable
DL 1617 leaves 12 h 09 after DL 1152 arrives on the timetable: more than half a day, so not a connection we count.