AC 8399 then AC 7058 at Toronto Pearson
Quebec → Toronto → Montréal
Timetable, Toronto time
13:57AC 8399 from Quebec at the gate
09:00AC 7058 to Montréal leaves the gate
19 h 03 apart on the timetable, overnight
AC 7058 leaves 19 h 03 after AC 8399 arrives on the timetable: more than half a day, so not a connection we count.