KL 1664 then U2 7927 at Schiphol
Bologna → Amsterdam → Prague
Timetable, Amsterdam time
15:05KL 1664 from Bologna at the gate
13:10U2 7927 to Prague leaves the gate
22 h 05 apart on the timetable, overnight
U2 7927 leaves 22 h 05 after KL 1664 arrives on the timetable: more than half a day, so not a connection we count.