FR 9481 then A3 863 at Vienna
Cologne → Vienna → Athens
Timetable, Vienna time
22:10FR 9481 from Cologne at the gate
18:30A3 863 to Athens leaves the gate
20 h 20 apart on the timetable, overnight
A3 863 leaves 20 h 20 after FR 9481 arrives on the timetable: more than half a day, so not a connection we count.