EC 6103 then LH 520 at Munich
Rome → Munich → Mexico City
Timetable, Munich time
14:05EC 6103 from Rome at the gate
12:20LH 520 to Mexico City leaves the gate
22 h 15 apart on the timetable, overnight
LH 520 leaves 22 h 15 after EC 6103 arrives on the timetable: more than half a day, so not a connection we count.