X3 4293 then LH 424 at Munich
Rhodes → Munich → Boston
Timetable, Munich time
21:50X3 4293 from Rhodes at the gate
16:05LH 424 to Boston leaves the gate
18 h 15 apart on the timetable, overnight
LH 424 leaves 18 h 15 after X3 4293 arrives on the timetable: more than half a day, so not a connection we count.