GQ 670 then TK 46 at Istanbul
Athens → Istanbul → Cape Town
Timetable, Istanbul time
21:45GQ 670 from Athens at the gate
13:05TK 46 to Cape Town leaves the gate
15 h 20 apart on the timetable, overnight
TK 46 leaves 15 h 20 after GQ 670 arrives on the timetable: more than half a day, so not a connection we count.