EC 3749 then VY 1096 at Barcelona
Milan → Barcelona → Düsseldorf
Timetable, Barcelona time
21:30EC 3749 from Milan at the gate
18:00VY 1096 to Düsseldorf leaves the gate
20 h 30 apart on the timetable, overnight
VY 1096 leaves 20 h 30 after EC 3749 arrives on the timetable: more than half a day, so not a connection we count.