AZ 1612 then FR 4891 at Fiumicino
Bari → Rome → Catania
Timetable, Rome time
12:30AZ 1612 from Bari at the gate
11:35FR 4891 to Catania leaves the gate
23 h 05 apart on the timetable, overnight
FR 4891 leaves 23 h 05 after AZ 1612 arrives on the timetable: more than half a day, so not a connection we count.