QR 3702 then EW 9443 at Barcelona
Milan → Barcelona → Düsseldorf
Timetable, Barcelona time
21:05QR 3702 from Milan at the gate
19:35EW 9443 to Düsseldorf leaves the gate
22 h 30 apart on the timetable, overnight
EW 9443 leaves 22 h 30 after QR 3702 arrives on the timetable: more than half a day, so not a connection we count.