C6 301 then TK 140 at Istanbul
Tashkent → Istanbul → Riyadh
Timetable, Istanbul time
08:40C6 301 from Tashkent at the gate
21:10TK 140 to Riyadh leaves the gate
12 h 30 apart on the timetable
TK 140 leaves 12 h 30 after C6 301 arrives on the timetable: more than half a day, so not a connection we count.