AC 421 then BR 659 at Toronto Pearson
Montréal → Toronto → Taipei
Timetable, Toronto time
18:55AC 421 from Montréal at the gate
15:31BR 659 to Taipei leaves the gate
20 h 36 apart on the timetable, overnight
BR 659 leaves 20 h 36 after AC 421 arrives on the timetable: more than half a day, so not a connection we count.