EC 7638 then EC 7697 at Lisbon
Nantes → Lisbon → Milan
Timetable, Lisbon time
15:50EC 7638 from Nantes at the gate
11:50EC 7697 to Milan leaves the gate
20 h apart on the timetable, overnight
EC 7697 leaves 20 h after EC 7638 arrives on the timetable: more than half a day, so not a connection we count.