CA 859 then TK 1847 at Istanbul
Beijing Capital → Istanbul → Athens
Timetable, Istanbul time
08:20CA 859 from Beijing Capital at the gate
05:35TK 1847 to Athens leaves the gate
21 h 15 apart on the timetable, overnight
TK 1847 leaves 21 h 15 after CA 859 arrives on the timetable: more than half a day, so not a connection we count.