EC 8065 then QR 146 at Barcelona
London Gatwick → Barcelona → Doha
Timetable, Barcelona time
18:15EC 8065 from London Gatwick at the gate
15:20QR 146 to Doha leaves the gate
21 h 05 apart on the timetable, overnight
QR 146 leaves 21 h 05 after EC 8065 arrives on the timetable: more than half a day, so not a connection we count.