AZ 1710 then FR 4906 at Fiumicino
Catania → Rome → Palermo
Timetable, Rome time
11:45AZ 1710 from Catania at the gate
11:15FR 4906 to Palermo leaves the gate
23 h 30 apart on the timetable, overnight
FR 4906 leaves 23 h 30 after AZ 1710 arrives on the timetable: more than half a day, so not a connection we count.