FR 12 then OS 165 at Vienna
Barcelona → Vienna → Düsseldorf
Timetable, Vienna time
22:50FR 12 from Barcelona at the gate
15:45OS 165 to Düsseldorf leaves the gate
16 h 55 apart on the timetable, overnight
OS 165 leaves 16 h 55 after FR 12 arrives on the timetable: more than half a day, so not a connection we count.