FR 1556 then FR 3204 at Manchester
Dublin → Manchester → Roma
Timetable, Manchester time
21:55FR 1556 from Dublin at the gate
13:05FR 3204 to Roma leaves the gate
15 h 10 apart on the timetable, overnight
FR 3204 leaves 15 h 10 after FR 1556 arrives on the timetable: more than half a day, so not a connection we count.