AC 829 then AC 593 at Toronto Pearson
Copenhagen → Toronto → Houston
Timetable, Toronto time
14:50AC 829 from Copenhagen at the gate
14:25AC 593 to Houston leaves the gate
23 h 35 apart on the timetable, overnight
AC 593 leaves 23 h 35 after AC 829 arrives on the timetable: more than half a day, so not a connection we count.