FR 50 then FR 9753 at Vienna
Treviso → Vienna → Banja Luka
Timetable, Vienna time
09:55FR 50 from Treviso at the gate
06:50FR 9753 to Banja Luka leaves the gate
20 h 55 apart on the timetable, overnight
FR 9753 leaves 20 h 55 after FR 50 arrives on the timetable: more than half a day, so not a connection we count.