hide block if post published date is less than xx/xx/xxxx

[swest]

What problem does this address?

I have an Author Block that is appended to the end of every post. I need that block to be hidden on posts with a published date before a certain date. How can I accomplish this?

What is your proposed solution?

I suppose this could be handled via posts meta and the addition of date comparison operators. So you could construct a visibility setting that would hide a block if the post published date is less than a certain date.

[ndiego]

Would it also be useful if you could set something like "X days since the post has been published"?