EC 7142 then QR 3662 at Barcelona
Strasbourg → Barcelona → Nantes
Timetable, Barcelona time
16:25EC 7142 from Strasbourg at the gate
13:40QR 3662 to Nantes leaves the gate
21 h 15 apart on the timetable, overnight
QR 3662 leaves 21 h 15 after EC 7142 arrives on the timetable: more than half a day, so not a connection we count.