FR 6921 then A3 713 at Barcelona
Dublin → Barcelona → Athens
Timetable, Barcelona time
21:40FR 6921 from Dublin at the gate
19:40A3 713 to Athens leaves the gate
22 h apart on the timetable, overnight
A3 713 leaves 22 h after FR 6921 arrives on the timetable: more than half a day, so not a connection we count.