JL 43 then BA 968 at Heathrow
Tokyo → London → Hamburg
Timetable, London time
15:15JL 43 from Tokyo at the gate
15:10BA 968 to Hamburg leaves the gate
23 h 55 apart on the timetable, overnight
BA 968 leaves 23 h 55 after JL 43 arrives on the timetable: more than half a day, so not a connection we count.