FR 6974 then W4 6664 at Barcelona
Rome → Barcelona → Palermo
Timetable, Barcelona time
10:25FR 6974 from Rome at the gate
22:40W4 6664 to Palermo leaves the gate
12 h 15 apart on the timetable
W4 6664 leaves 12 h 15 after FR 6974 arrives on the timetable: more than half a day, so not a connection we count.