SK 811 then BA 970 at Heathrow
Oslo → London → Hamburg
Timetable, London time
18:50SK 811 from Oslo at the gate
18:25BA 970 to Hamburg leaves the gate
23 h 35 apart on the timetable, overnight
BA 970 leaves 23 h 35 after SK 811 arrives on the timetable: more than half a day, so not a connection we count.