AA 5886 then DL 5714 at Philadelphia
Toronto → Philadelphia → Boston
Timetable, Philadelphia time
20:01AA 5886 from Toronto at the gate
19:55DL 5714 to Boston leaves the gate
23 h 54 apart on the timetable, overnight
DL 5714 leaves 23 h 54 after AA 5886 arrives on the timetable: more than half a day, so not a connection we count.