UA 20 then HV 6003 at Schiphol
Houston → Amsterdam → Porto
Timetable, Amsterdam time
08:35UA 20 from Houston at the gate
06:50HV 6003 to Porto leaves the gate
22 h 15 apart on the timetable, overnight
HV 6003 leaves 22 h 15 after UA 20 arrives on the timetable: more than half a day, so not a connection we count.