TK 2015 then TK 208 at Istanbul
Kayseri → Istanbul → Singapore
Timetable, Istanbul time
18:10TK 2015 from Kayseri at the gate
17:15TK 208 to Singapore leaves the gate
23 h 05 apart on the timetable, overnight
TK 208 leaves 23 h 05 after TK 2015 arrives on the timetable: more than half a day, so not a connection we count.