U2 2925 then KL 1983 at Schiphol
Bristol → Amsterdam → Belgrade
Timetable, Amsterdam time
10:00U2 2925 from Bristol at the gate
09:40KL 1983 to Belgrade leaves the gate
23 h 40 apart on the timetable, overnight
KL 1983 leaves 23 h 40 after U2 2925 arrives on the timetable: more than half a day, so not a connection we count.