FR 914 then FR 4852 at Fiumicino
Stockholm → Rome → Catania
Timetable, Rome time
19:55FR 914 from Stockholm at the gate
09:35FR 4852 to Catania leaves the gate
13 h 40 apart on the timetable, overnight
FR 4852 leaves 13 h 40 after FR 914 arrives on the timetable: more than half a day, so not a connection we count.