EC 8382 then DS 8491 at Gatwick
Bordeaux → London → Geneva
Timetable, London time
07:40EC 8382 from Bordeaux at the gate
20:05DS 8491 to Geneva leaves the gatealso U2 8491
12 h 25 apart on the timetable
DS 8491 leaves 12 h 25 after EC 8382 arrives on the timetable: more than half a day, so not a connection we count.