FR 166 then FR 3946 at Fiumicino
Beauvais → Rome → Palermo
Timetable, Rome time
10:45FR 166 from Beauvais at the gate
07:15FR 3946 to Palermo leaves the gate
20 h 30 apart on the timetable, overnight
FR 3946 leaves 20 h 30 after FR 166 arrives on the timetable: more than half a day, so not a connection we count.