EW 7520 then LA 5775 at Barcelona
Hamburg → Barcelona → Nantes
Timetable, Barcelona time
16:20EW 7520 from Hamburg at the gate
13:40LA 5775 to Nantes leaves the gate
21 h 20 apart on the timetable, overnight
LA 5775 leaves 21 h 20 after EW 7520 arrives on the timetable: more than half a day, so not a connection we count.