EC 7102 then A3 711 at Barcelona
Basel → Barcelona → Athens
Timetable, Barcelona time
14:40EC 7102 from Basel at the gate
11:20A3 711 to Athens leaves the gate
20 h 40 apart on the timetable, overnight
A3 711 leaves 20 h 40 after EC 7102 arrives on the timetable: more than half a day, so not a connection we count.