AC 8509 then DL 896 at Atlanta
Toronto → Atlanta → San Diego
Timetable, Atlanta time
21:21AC 8509 from Toronto at the gate
20:50DL 896 to San Diego leaves the gate
23 h 29 apart on the timetable, overnight
DL 896 leaves 23 h 29 after AC 8509 arrives on the timetable: more than half a day, so not a connection we count.