FR 3109 then EW 521 at Barcelona
Luxembourg → Barcelona → Cologne
Timetable, Barcelona time
16:35FR 3109 from Luxembourg at the gate
13:25EW 521 to Cologne leaves the gate
20 h 50 apart on the timetable, overnight
EW 521 leaves 20 h 50 after FR 3109 arrives on the timetable: more than half a day, so not a connection we count.