QR 3767 then EC 8064 at Barcelona
Palermo → Barcelona → London Gatwick
Timetable, Barcelona time
14:25QR 3767 from Palermo at the gate
12:50EC 8064 to London Gatwick leaves the gate
22 h 25 apart on the timetable, overnight
EC 8064 leaves 22 h 25 after QR 3767 arrives on the timetable: more than half a day, so not a connection we count.