FR 2403 then LA 5744 at Barcelona
Seville → Barcelona → Nantes
Timetable, Barcelona time
17:20FR 2403 from Seville at the gate
13:40LA 5744 to Nantes leaves the gate
20 h 20 apart on the timetable, overnight
LA 5744 leaves 20 h 20 after FR 2403 arrives on the timetable: more than half a day, so not a connection we count.