EC 7152 then FR 7351 at Barcelona
Milan → Barcelona → Vienna
Timetable, Barcelona time
11:25EC 7152 from Milan at the gate
09:15FR 7351 to Vienna leaves the gate
21 h 50 apart on the timetable, overnight
FR 7351 leaves 21 h 50 after EC 7152 arrives on the timetable: more than half a day, so not a connection we count.