How to check my last login date now. For Returning event that no login for 30 days?
I dont know the specific but usually you can just see it in your "Journal" (P).
And check your last activity there and from there you can calculate how many days you were inactive since the time you logged back in (now).
Another way to check is to ask a friend who is in your guild (if you are in a guild).
Ask him how many days you are offline.
I think his mean old website got an info that written our last login date, in Accounts related subpage, i think is first page