U2 7928 then KL 643 at Schiphol
Prague → Amsterdam → New York JFK
Timetable, Amsterdam time
22:10U2 7928 from Prague at the gate
17:05KL 643 to New York JFK leaves the gate
18 h 55 apart on the timetable, overnight
KL 643 leaves 18 h 55 after U2 7928 arrives on the timetable: more than half a day, so not a connection we count.