Comment on Technical Support by SEO Dave.

WordPress Technical Support The date is based on your latest post, so if you haven’t published a new post since 2012, the copyright will be 2012.

To set a fixed date you could edit the footer.php file and set it to whatever you want.

Look for this code:

&copy;<?php the_time('Y'); ?>

And change to whatever year you want, for example:

&copy;2015

David