BA 814 then DY 3540 at Copenhagen
London Heathrow → Copenhagen → Amsterdam
Timetable, Copenhagen time
17:55BA 814 from London Heathrow at the gate
12:25DY 3540 to Amsterdam leaves the gate
18 h 30 apart on the timetable, overnight
DY 3540 leaves 18 h 30 after BA 814 arrives on the timetable: more than half a day, so not a connection we count.