FR 6921 then LH 1815 at Barcelona
Dublin → Barcelona → Munich
Timetable, Barcelona time
21:40FR 6921 from Dublin at the gate
18:20LH 1815 to Munich leaves the gate
20 h 40 apart on the timetable, overnight
LH 1815 leaves 20 h 40 after FR 6921 arrives on the timetable: more than half a day, so not a connection we count.