AZ 1682 then FR 1170 at Fiumicino
Firenze → Rome → Catania
Timetable, Rome time
16:25AZ 1682 from Firenze at the gate
10:55FR 1170 to Catania leaves the gate
18 h 30 apart on the timetable, overnight
FR 1170 leaves 18 h 30 after AZ 1682 arrives on the timetable: more than half a day, so not a connection we count.