TK 751 then C6 302 at Istanbul
Islamabad → Istanbul → Tashkent
Timetable, Istanbul time
14:25TK 751 from Islamabad at the gate
10:10C6 302 to Tashkent leaves the gate
19 h 45 apart on the timetable, overnight
C6 302 leaves 19 h 45 after TK 751 arrives on the timetable: more than half a day, so not a connection we count.