FR 2508 then VY 4235 at Barcelona
Cologne → Barcelona → Düsseldorf
Timetable, Barcelona time
21:45FR 2508 from Cologne at the gate
17:55VY 4235 to Düsseldorf leaves the gate
20 h 10 apart on the timetable, overnight
VY 4235 leaves 20 h 10 after FR 2508 arrives on the timetable: more than half a day, so not a connection we count.