Suppose somebody says mi sono svegliato 10 minuti alle 7:00 or mi sono collegato 14 minuti alle 21:00, which preposition is implicit in those sentences?
For how I understand it, 10 minuti and 14 minuti means for how long the action last. So in the first case, I was sleeping before 7:00 AM, and I was still sleeping after 7:10 AM.
Could it be those sentences mean respectively, "I woke up at 10 to 7:00" and "I came online at 14 minutes to 9:00 PM"?
For how I understand them, the implicit preposition is per (for); in the other case would be a (at). Which is the case?
I am asking because it seems that some Italians don't understand those sentences the way I understand them; for those Italians, the implicit preposition would be a, and the sentences I used as example would be saying when the actions happened.