HV 6004 then KL 425 at Schiphol
Porto → Amsterdam → Riyadh
Timetable, Amsterdam time
23:20HV 6004 from Porto at the gate
14:40KL 425 to Riyadh leaves the gate
15 h 20 apart on the timetable, overnight
KL 425 leaves 15 h 20 after HV 6004 arrives on the timetable: more than half a day, so not a connection we count.