KL 652 then HV 6003 at Schiphol
Washington → Amsterdam → Porto
Timetable, Amsterdam time
07:35KL 652 from Washington at the gate
06:50HV 6003 to Porto leaves the gate
23 h 15 apart on the timetable, overnight
HV 6003 leaves 23 h 15 after KL 652 arrives on the timetable: more than half a day, so not a connection we count.