FR 562 then BA 1359 at Manchester
Dublin → Manchester → London Heathrow
Timetable, Manchester time
11:35FR 562 from Dublin at the gate
08:50BA 1359 to London Heathrow leaves the gate
21 h 15 apart on the timetable, overnight
BA 1359 leaves 21 h 15 after FR 562 arrives on the timetable: more than half a day, so not a connection we count.