EC 7154 then EW 9443 at Barcelona
Milan → Barcelona → Düsseldorf
Timetable, Barcelona time
23:15EC 7154 from Milan at the gate
19:35EW 9443 to Düsseldorf leaves the gate
20 h 20 apart on the timetable, overnight
EW 9443 leaves 20 h 20 after EC 7154 arrives on the timetable: more than half a day, so not a connection we count.