EC 8064 then BY 12 at Gatwick
Barcelona → London → Bridgetown
Timetable, London time
14:15EC 8064 from Barcelona at the gate
10:10BY 12 to Bridgetown leaves the gate
19 h 55 apart on the timetable, overnight
BY 12 leaves 19 h 55 after EC 8064 arrives on the timetable: more than half a day, so not a connection we count.