KL 980 then HV 51 at Schiphol
London City → Amsterdam → Prague
Timetable, Amsterdam time
11:00KL 980 from London City at the gate
07:15HV 51 to Prague leaves the gate
20 h 15 apart on the timetable, overnight
HV 51 leaves 20 h 15 after KL 980 arrives on the timetable: more than half a day, so not a connection we count.