EW 7524 then FR 2507 at Barcelona
Hamburg → Barcelona → Cologne
Timetable, Barcelona time
18:05EW 7524 from Hamburg at the gate
06:20FR 2507 to Cologne leaves the gate
12 h 15 apart on the timetable, overnight
FR 2507 leaves 12 h 15 after EW 7524 arrives on the timetable: more than half a day, so not a connection we count.