FR 678 then OS 165 at Vienna
Bucharest → Vienna → Düsseldorf
Timetable, Vienna time
15:55FR 678 from Bucharest at the gate
15:45OS 165 to Düsseldorf leaves the gate
23 h 50 apart on the timetable, overnight
OS 165 leaves 23 h 50 after FR 678 arrives on the timetable: more than half a day, so not a connection we count.