A3 851 then A3 868 at Athens
Zurich → Athens → Krakow
Timetable, Athens time
14:50A3 851 from Zurich at the gate
11:00A3 868 to Krakow leaves the gate
20 h 10 apart on the timetable, overnight
A3 868 leaves 20 h 10 after A3 851 arrives on the timetable: more than half a day, so not a connection we count.