KL 9872 then U2 7925 at Schiphol
Brussels → Amsterdam → Prague
Timetable, Amsterdam time
12:55KL 9872 from Brussels at the gate
07:00U2 7925 to Prague leaves the gate
18 h 05 apart on the timetable, overnight
U2 7925 leaves 18 h 05 after KL 9872 arrives on the timetable: more than half a day, so not a connection we count.