FR 2508 then EW 9443 at Barcelona
Cologne → Barcelona → Düsseldorf
Timetable, Barcelona time
21:45FR 2508 from Cologne at the gate
19:35EW 9443 to Düsseldorf leaves the gate
21 h 50 apart on the timetable, overnight
EW 9443 leaves 21 h 50 after FR 2508 arrives on the timetable: more than half a day, so not a connection we count.