EC 8384 then IB 986 at Gatwick
Bordeaux → London → Madrid
Timetable, London time
19:55EC 8384 from Bordeaux at the gate
19:40IB 986 to Madrid leaves the gate
23 h 45 apart on the timetable, overnight
IB 986 leaves 23 h 45 after EC 8384 arrives on the timetable: more than half a day, so not a connection we count.