HV 6002 then KL 1803 at Schiphol
Porto → Amsterdam → Düsseldorf
Timetable, Amsterdam time
23:55HV 6002 from Porto at the gate
17:10KL 1803 to Düsseldorf leaves the gate
17 h 15 apart on the timetable, overnight
KL 1803 leaves 17 h 15 after HV 6002 arrives on the timetable: more than half a day, so not a connection we count.