KL 425 then HV 6337 at Schiphol
Ad Dammam → Amsterdam → Valencia
Timetable, Amsterdam time
07:40KL 425 from Ad Dammam at the gate
07:25HV 6337 to Valencia leaves the gate
23 h 45 apart on the timetable, overnight
HV 6337 leaves 23 h 45 after KL 425 arrives on the timetable: more than half a day, so not a connection we count.