AF 1504 then FR 4891 at Fiumicino
Paris Charles de Gaulle → Rome → Catania
Timetable, Rome time
15:00AF 1504 from Paris Charles de Gaulle at the gate
12:15FR 4891 to Catania leaves the gate
21 h 15 apart on the timetable, overnight
FR 4891 leaves 21 h 15 after AF 1504 arrives on the timetable: more than half a day, so not a connection we count.