AZ 721 then FR 4861 at Fiumicino
Athens → Rome → Catania
Timetable, Rome time
20:40AZ 721 from Athens at the gate
09:15FR 4861 to Catania leaves the gate
12 h 35 apart on the timetable, overnight
FR 4861 leaves 12 h 35 after AZ 721 arrives on the timetable: more than half a day, so not a connection we count.