CA 993 then AC 7164 at Toronto Pearson
Beijing → Toronto → Montréal
Timetable, Toronto time
12:10CA 993 from Beijing at the gate
22:30AC 7164 to Montréal leaves the gate
10 h 20 apart on the timetable
The last days
CA 993 and AC 7164 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.