A3 711 then A3 868 at Athens
Barcelona → Athens → Krakow
Timetable, Athens time
15:10A3 711 from Barcelona at the gate
11:00A3 868 to Krakow leaves the gate
19 h 50 apart on the timetable, overnight
A3 868 leaves 19 h 50 after A3 711 arrives on the timetable: more than half a day, so not a connection we count.