TK 1913 then FB 492 at Zurich
Istanbul → Zurich → Sofia
Timetable, Zurich time
13:45TK 1913 from Istanbul at the gate
10:00FB 492 to Sofia leaves the gate
20 h 15 apart on the timetable, overnight
FB 492 leaves 20 h 15 after TK 1913 arrives on the timetable: more than half a day, so not a connection we count.