AC 7885 then AC 8618 at Toronto Pearson
Montréal → Toronto → Washington
Timetable, Toronto time
15:46AC 7885 from Montréal at the gate
14:15AC 8618 to Washington leaves the gate
22 h 29 apart on the timetable, overnight
AC 8618 leaves 22 h 29 after AC 7885 arrives on the timetable: more than half a day, so not a connection we count.