U2 2124 then FR 559 at Manchester
Rome → Manchester → Dublin
Timetable, Manchester time
23:15U2 2124 from Rome at the gate
20:05FR 559 to Dublin leaves the gate
20 h 50 apart on the timetable, overnight
FR 559 leaves 20 h 50 after U2 2124 arrives on the timetable: more than half a day, so not a connection we count.