FR 2508 then DY 3659 at Barcelona
Cologne → Barcelona → Copenhagen
Timetable, Barcelona time
21:45FR 2508 from Cologne at the gate
14:45DY 3659 to Copenhagen leaves the gate
17 h apart on the timetable, overnight
DY 3659 leaves 17 h after FR 2508 arrives on the timetable: more than half a day, so not a connection we count.