U2 2921 then KL 1333 at Schiphol
Bristol → Amsterdam → Poznan
Timetable, Amsterdam time
15:50U2 2921 from Bristol at the gate
12:10KL 1333 to Poznan leaves the gate
20 h 20 apart on the timetable, overnight
KL 1333 leaves 20 h 20 after U2 2921 arrives on the timetable: more than half a day, so not a connection we count.