LL 3105 then QR 4704 at Barcelona
Badajoz → Barcelona → Porto
Timetable, Barcelona time
16:30LL 3105 from Badajoz at the gate
08:35QR 4704 to Porto leaves the gate
16 h 05 apart on the timetable, overnight
QR 4704 leaves 16 h 05 after LL 3105 arrives on the timetable: more than half a day, so not a connection we count.