QR 3641 then EW 523 at Barcelona
Catania → Barcelona → Cologne
Timetable, Barcelona time
20:55QR 3641 from Catania at the gate
20:25EW 523 to Cologne leaves the gate
23 h 30 apart on the timetable, overnight
EW 523 leaves 23 h 30 after QR 3641 arrives on the timetable: more than half a day, so not a connection we count.