BA 440 then U2 7925 at Schiphol
London Heathrow → Amsterdam → Prague
Timetable, Amsterdam time
16:35BA 440 from London Heathrow at the gate
07:20U2 7925 to Prague leaves the gate
14 h 45 apart on the timetable, overnight
U2 7925 leaves 14 h 45 after BA 440 arrives on the timetable: more than half a day, so not a connection we count.