KL 1004 then HV 6335 at Schiphol
London Heathrow → Amsterdam → Valencia
Timetable, Amsterdam time
12:25KL 1004 from London Heathrow at the gate
07:20HV 6335 to Valencia leaves the gate
18 h 55 apart on the timetable, overnight
HV 6335 leaves 18 h 55 after KL 1004 arrives on the timetable: more than half a day, so not a connection we count.