BA 772 then DY 820 at Oslo
London Heathrow → Oslo → Stockholm
Timetable, Oslo time
19:40BA 772 from London Heathrow at the gate
17:00DY 820 to Stockholm leaves the gate
21 h 20 apart on the timetable, overnight
DY 820 leaves 21 h 20 after BA 772 arrives on the timetable: more than half a day, so not a connection we count.