FR 12 then OS 525 at Vienna
Barcelona → Vienna → Milan Linate
Timetable, Vienna time
22:50FR 12 from Barcelona at the gate
15:05OS 525 to Milan Linate leaves the gate
16 h 15 apart on the timetable, overnight
OS 525 leaves 16 h 15 after FR 12 arrives on the timetable: more than half a day, so not a connection we count.