TK 6887 then TK 1757 at Istanbul
Tbilisi → Istanbul → Riga
Timetable, Istanbul time
18:30TK 6887 from Tbilisi at the gate
08:30TK 1757 to Riga leaves the gate
14 h apart on the timetable, overnight
TK 1757 leaves 14 h after TK 6887 arrives on the timetable: more than half a day, so not a connection we count.