FR 554 then FR 3204 at Manchester
Dublin → Manchester → Roma
Timetable, Manchester time
14:20FR 554 from Dublin at the gate
06:45FR 3204 to Roma leaves the gate
16 h 25 apart on the timetable, overnight
FR 3204 leaves 16 h 25 after FR 554 arrives on the timetable: more than half a day, so not a connection we count.