FR 2508 then LA 5770 at Barcelona
Cologne → Barcelona → Porto
Timetable, Barcelona time
21:45FR 2508 from Cologne at the gate
18:35LA 5770 to Porto leaves the gate
20 h 50 apart on the timetable, overnight
LA 5770 leaves 20 h 50 after FR 2508 arrives on the timetable: more than half a day, so not a connection we count.