KL 598 then U2 7927 at Schiphol
Cape Town → Amsterdam → Prague
Timetable, Amsterdam time
11:20KL 598 from Cape Town at the gate
07:15U2 7927 to Prague leaves the gate
19 h 55 apart on the timetable, overnight
U2 7927 leaves 19 h 55 after KL 598 arrives on the timetable: more than half a day, so not a connection we count.