BA 941 then SK 534 at Heathrow
Düsseldorf → London → Stockholm
Timetable, London time
07:45BA 941 from Düsseldorf at the gate
21:05SK 534 to Stockholm leaves the gate
13 h 20 apart on the timetable
SK 534 leaves 13 h 20 after BA 941 arrives on the timetable: more than half a day, so not a connection we count.