A3 712 then FR 867 at Barcelona
Athens → Barcelona → Venezia
Timetable, Barcelona time
18:45A3 712 from Athens at the gate
09:45FR 867 to Venezia leaves the gate
15 h apart on the timetable, overnight
FR 867 leaves 15 h after A3 712 arrives on the timetable: more than half a day, so not a connection we count.