FR 8561 then FR 4852 at Fiumicino
Valletta → Rome → Catania
Timetable, Rome time
13:05FR 8561 from Valletta at the gate
09:35FR 4852 to Catania leaves the gate
20 h 30 apart on the timetable, overnight
FR 4852 leaves 20 h 30 after FR 8561 arrives on the timetable: more than half a day, so not a connection we count.