TK 6922 then FV 6964 at Istanbul
Krakow → Istanbul → St. Petersburg
Timetable, Istanbul time
17:30TK 6922 from Krakow at the gate
17:10FV 6964 to St. Petersburg leaves the gate
23 h 40 apart on the timetable, overnight
FV 6964 leaves 23 h 40 after TK 6922 arrives on the timetable: more than half a day, so not a connection we count.