HV 6002 then KL 1805 at Schiphol
Porto → Amsterdam → Düsseldorf
Timetable, Amsterdam time
23:55HV 6002 from Porto at the gate
21:20KL 1805 to Düsseldorf leaves the gate
21 h 25 apart on the timetable, overnight
KL 1805 leaves 21 h 25 after HV 6002 arrives on the timetable: more than half a day, so not a connection we count.