W4 6132 then FR 4852 at Fiumicino
Nice → Rome → Catania
Timetable, Rome time
15:20W4 6132 from Nice at the gate
13:55FR 4852 to Catania leaves the gate
22 h 35 apart on the timetable, overnight
FR 4852 leaves 22 h 35 after W4 6132 arrives on the timetable: more than half a day, so not a connection we count.