EC 3749 then FR 7351 at Barcelona
Milan → Barcelona → Vienna
Timetable, Barcelona time
21:30EC 3749 from Milan at the gate
20:10FR 7351 to Vienna leaves the gate
22 h 40 apart on the timetable, overnight
FR 7351 leaves 22 h 40 after EC 3749 arrives on the timetable: more than half a day, so not a connection we count.