FR 1556 then BA 1367 at Manchester
Dublin → Manchester → London Heathrow
Timetable, Manchester time
14:00FR 1556 from Dublin at the gate
12:10BA 1367 to London Heathrow leaves the gate
22 h 10 apart on the timetable, overnight
BA 1367 leaves 22 h 10 after FR 1556 arrives on the timetable: more than half a day, so not a connection we count.