W4 6022 then FR 1198 at Fiumicino
Barcelona → Rome → Athens
Timetable, Rome time
17:10W4 6022 from Barcelona at the gate
12:10FR 1198 to Athens leaves the gate
19 h apart on the timetable, overnight
FR 1198 leaves 19 h after W4 6022 arrives on the timetable: more than half a day, so not a connection we count.