LH 1750 then SN 3246 at Athens
Munich → Athens → Brussels
Timetable, Athens time
15:00LH 1750 from Munich at the gate
12:05SN 3246 to Brussels leaves the gate
21 h 05 apart on the timetable, overnight
SN 3246 leaves 21 h 05 after LH 1750 arrives on the timetable: more than half a day, so not a connection we count.