Given, arriving at a place of appointment on Sunday, I found that I was 3 days earlier than the woman who was 2 days late.
The man came 3 days earlier than the woman. So, she must be coming on Wednesday.
Now, the woman is 2 days late. So the day of appointment is 2 days back from Wednesday i.e., Monday.
Again, if the man comes on Thursday then he is 3 days late from the Monday (his day of appointment).