W4 6723 then TK 1846 at Athens
Venezia → Athens → Istanbul
Timetable, Athens time
22:20W4 6723 from Venezia at the gate
21:50TK 1846 to Istanbul leaves the gate
23 h 30 apart on the timetable, overnight
TK 1846 leaves 23 h 30 after W4 6723 arrives on the timetable: more than half a day, so not a connection we count.