AC 502 then AC 2058 at Toronto Pearson
Chicago O'Hare → Toronto → Halifax
Timetable, Toronto time
12:52AC 502 from Chicago O'Hare at the gate
10:00AC 2058 to Halifax leaves the gate
21 h 08 apart on the timetable, overnight
AC 2058 leaves 21 h 08 after AC 502 arrives on the timetable: more than half a day, so not a connection we count.