AA 6597 then AA 5215 at Philadelphia
Trenton → Philadelphia → Harrisburg
Timetable, Philadelphia time
12:55AA 6597 from Trenton at the gate
08:20AA 5215 to Harrisburg leaves the gate
19 h 25 apart on the timetable, overnight
AA 5215 leaves 19 h 25 after AA 6597 arrives on the timetable: more than half a day, so not a connection we count.