A3 712 then FR 3180 at Barcelona
Athens → Barcelona → Rome
Timetable, Barcelona time
18:45A3 712 from Athens at the gate
10:45FR 3180 to Rome leaves the gate
16 h apart on the timetable, overnight
FR 3180 leaves 16 h after A3 712 arrives on the timetable: more than half a day, so not a connection we count.