LL 3105 then QR 3683 at Barcelona
Badajoz → Barcelona → Santander
Timetable, Barcelona time
16:30LL 3105 from Badajoz at the gate
16:05QR 3683 to Santander leaves the gate
23 h 35 apart on the timetable, overnight
QR 3683 leaves 23 h 35 after LL 3105 arrives on the timetable: more than half a day, so not a connection we count.