BA 365 then BA 780 at Heathrow
Marseille → London → Stockholm
Timetable, London time
13:10BA 365 from Marseille at the gate
13:05BA 780 to Stockholm leaves the gate
23 h 55 apart on the timetable, overnight
BA 780 leaves 23 h 55 after BA 365 arrives on the timetable: more than half a day, so not a connection we count.