JL 43 then KL 9936 at Heathrow
Tokyo → London → Amsterdam
Timetable, London time
15:15JL 43 from Tokyo at the gate
12:13KL 9936 to Amsterdam leaves the gate
20 h 58 apart on the timetable, overnight
KL 9936 leaves 20 h 58 after JL 43 arrives on the timetable: more than half a day, so not a connection we count.