W4 6723 then A3 852 at Athens
Venezia → Athens → Zurich
Timetable, Athens time
22:20W4 6723 from Venezia at the gate
16:45A3 852 to Zurich leaves the gate
18 h 25 apart on the timetable, overnight
A3 852 leaves 18 h 25 after W4 6723 arrives on the timetable: more than half a day, so not a connection we count.