FR 6927 then FR 3946 at Fiumicino
Barcelona → Rome → Palermo
Timetable, Rome time
18:40FR 6927 from Barcelona at the gate
13:50FR 3946 to Palermo leaves the gate
19 h 10 apart on the timetable, overnight
FR 3946 leaves 19 h 10 after FR 6927 arrives on the timetable: more than half a day, so not a connection we count.