FR 1815 then FR 9600 at Fiumicino
Porto → Rome → Dublin
Timetable, Rome time
20:40FR 1815 from Porto at the gate
17:20FR 9600 to Dublin leaves the gate
20 h 40 apart on the timetable, overnight
FR 9600 leaves 20 h 40 after FR 1815 arrives on the timetable: more than half a day, so not a connection we count.