So just to clarify, without logging out and in again, the message appears each time you visit the site to make some moves, appears once, then appears again on your next visit?
As long as I remain logged in, I do not see the message, even when I leave the site and return. It's only when I must log back in that I see the message...each time.
You had said that I should only see the message every 30 days, but that has not been the case for me, which is why I responded. I was unclear how to check and/or fix the clock and time as you suggested.
Edit: I have only had to re-log in 3 times recently and have seen the message each time. It's really not a big deal because generally I stay logged in and it's a non issue. The reason for my post is because my settings seem fine, and I shouldn't be seeing that message.