AA 6056 then DL 5845 at Philadelphia
Harrisburg → Philadelphia → Boston
Timetable, Philadelphia time
09:49AA 6056 from Harrisburg at the gate
09:00DL 5845 to Boston leaves the gate
23 h 11 apart on the timetable, overnight
DL 5845 leaves 23 h 11 after AA 6056 arrives on the timetable: more than half a day, so not a connection we count.