KL 606 then U2 7925 at Schiphol
San Francisco → Amsterdam → Prague
Timetable, Amsterdam time
09:10KL 606 from San Francisco at the gate
07:20U2 7925 to Prague leaves the gate
22 h 10 apart on the timetable, overnight
U2 7925 leaves 22 h 10 after KL 606 arrives on the timetable: more than half a day, so not a connection we count.