I recently realized that Google automatically adds the_time() or the_date() output into the beginning of my descriptions on their SERP’s.
For example, instead of my normal meta description being used, I see this in front of all my descriptions on a Google search results page:
Aug 13, 2010 …
The best way I found to remove this, though it may be a hackish approach, is to replace your references to the_time() and the_date() in your theme files with:
<script type="text/javascript">document.write('<?php the_date() ?>');</script>
Once you do that it’s time for the SERP waiting game. I believe it can take upwards of a month for Google to re-index your top pages, so patience is a virtue.
I hope this helps someone else out there, and special thanks to Ajith for originally posting this method.