AC 405 then WS 2712 at Toronto Pearson
Montréal → Toronto → Cancún
Timetable, Toronto time
10:46AC 405 from Montréal at the gate
09:25WS 2712 to Cancún leaves the gate
22 h 39 apart on the timetable, overnight
WS 2712 leaves 22 h 39 after AC 405 arrives on the timetable: more than half a day, so not a connection we count.