SN 3697 then FR 2507 at Barcelona
Brussels → Barcelona → Cologne
Timetable, Barcelona time
11:25SN 3697 from Brussels at the gate
06:20FR 2507 to Cologne leaves the gate
18 h 55 apart on the timetable, overnight
FR 2507 leaves 18 h 55 after SN 3697 arrives on the timetable: more than half a day, so not a connection we count.