W4 6132 then FR 4891 at Fiumicino
Nice → Rome → Catania
Timetable, Rome time
19:55W4 6132 from Nice at the gate
17:25FR 4891 to Catania leaves the gate
21 h 30 apart on the timetable, overnight
FR 4891 leaves 21 h 30 after W4 6132 arrives on the timetable: more than half a day, so not a connection we count.