FR 2436 then W4 6253 at Fiumicino
Madrid → Rome → Palermo
Timetable, Rome time
21:00FR 2436 from Madrid at the gate
18:00W4 6253 to Palermo leaves the gate
21 h apart on the timetable, overnight
W4 6253 leaves 21 h after FR 2436 arrives on the timetable: more than half a day, so not a connection we count.