FR 4903 then W4 6131 at Fiumicino
Palermo → Rome → Nice
Timetable, Rome time
14:40FR 4903 from Palermo at the gate
12:00W4 6131 to Nice leaves the gate
21 h 20 apart on the timetable, overnight
W4 6131 leaves 21 h 20 after FR 4903 arrives on the timetable: more than half a day, so not a connection we count.