KL 1946 then U2 7927 at Schiphol
Basel → Amsterdam → Prague
Timetable, Amsterdam time
15:35KL 1946 from Basel at the gate
13:10U2 7927 to Prague leaves the gate
21 h 35 apart on the timetable, overnight
U2 7927 leaves 21 h 35 after KL 1946 arrives on the timetable: more than half a day, so not a connection we count.