VS 412 then BA 746 at Heathrow
Lagos → London → Geneva
Timetable, London time
15:20VS 412 from Lagos at the gate
10:30BA 746 to Geneva leaves the gate
19 h 10 apart on the timetable, overnight
BA 746 leaves 19 h 10 after VS 412 arrives on the timetable: more than half a day, so not a connection we count.