FR 13 then GQ 927 at Barcelona
Vienna → Barcelona → Athens
Timetable, Barcelona time
10:20FR 13 from Vienna at the gate
22:45GQ 927 to Athens leaves the gate
12 h 25 apart on the timetable
GQ 927 leaves 12 h 25 after FR 13 arrives on the timetable: more than half a day, so not a connection we count.