AA 5145 then DL 2857 at Atlanta
Charlotte → Atlanta → Harrisburg
Timetable, Atlanta time
16:14AA 5145 from Charlotte at the gate
15:45DL 2857 to Harrisburg leaves the gate
23 h 31 apart on the timetable, overnight
DL 2857 leaves 23 h 31 after AA 5145 arrives on the timetable: more than half a day, so not a connection we count.