KL 1918 then U2 7925 at Schiphol
Zurich → Amsterdam → Prague
Timetable, Amsterdam time
10:55KL 1918 from Zurich at the gate
07:00U2 7925 to Prague leaves the gate
20 h 05 apart on the timetable, overnight
U2 7925 leaves 20 h 05 after KL 1918 arrives on the timetable: more than half a day, so not a connection we count.