UA 981 then BR 658 at O'Hare
Dublin → Chicago → Toronto Pearson
Timetable, Chicago time
13:20UA 981 from Dublin at the gate
11:30BR 658 to Toronto Pearson leaves the gate
22 h 10 apart on the timetable, overnight
BR 658 leaves 22 h 10 after UA 981 arrives on the timetable: more than half a day, so not a connection we count.