FR 6927 then AZ 1751 at Fiumicino
Barcelona → Rome → Catania
Timetable, Rome time
21:15FR 6927 from Barcelona at the gate
14:20AZ 1751 to Catania leaves the gate
17 h 05 apart on the timetable, overnight
AZ 1751 leaves 17 h 05 after FR 6927 arrives on the timetable: more than half a day, so not a connection we count.