EW 7524 then FR 4545 at Barcelona
Hamburg → Barcelona → Porto
Timetable, Barcelona time
18:05EW 7524 from Hamburg at the gate
06:45FR 4545 to Porto leaves the gate
12 h 40 apart on the timetable, overnight
FR 4545 leaves 12 h 40 after EW 7524 arrives on the timetable: more than half a day, so not a connection we count.