DL 2835 then DL 726 at Atlanta
Toronto → Atlanta → Boston
Timetable, Atlanta time
14:34DL 2835 from Toronto at the gate
13:50DL 726 to Boston leaves the gate
23 h 16 apart on the timetable, overnight
DL 726 leaves 23 h 16 after DL 2835 arrives on the timetable: more than half a day, so not a connection we count.