I'm developing a membership area on Wordpress, and I need to limit access according to the user's registration date. I already have the registration date and I already have the amount of days that the user is registered using the php Diff function.
Example:
User registers today and has access to page X, he can only see the page Y after 10 Days, if he has fewer days, I display an error message and with 10 days or more, I release the page
It can be a plugin, no problem.