HV 6868 then U2 5531 at Schiphol
Athens → Amsterdam → Bristol
Timetable, Amsterdam time
23:20HV 6868 from Athens at the gate
19:30U2 5531 to Bristol leaves the gate
20 h 10 apart on the timetable, overnight
U2 5531 leaves 20 h 10 after HV 6868 arrives on the timetable: more than half a day, so not a connection we count.