FR 9602 then FR 4852 at Fiumicino
Madrid → Rome → Catania
Timetable, Rome time
10:05FR 9602 from Madrid at the gate
09:35FR 4852 to Catania leaves the gate
23 h 30 apart on the timetable, overnight
FR 4852 leaves 23 h 30 after FR 9602 arrives on the timetable: more than half a day, so not a connection we count.