FR 4903 then AZ 1751 at Fiumicino
Palermo → Rome → Catania
Timetable, Rome time
21:00FR 4903 from Palermo at the gate
14:20AZ 1751 to Catania leaves the gate
17 h 20 apart on the timetable, overnight
AZ 1751 leaves 17 h 20 after FR 4903 arrives on the timetable: more than half a day, so not a connection we count.