Where is Google pulling the date stamp information from?

[Juergen-119481]

I found date stamps in front of Google's SERP snippets always very helpful, but where exactly is Google pulling this information from? Some of my sites show dates from past year in the snippets although all of them have a current date stamp on the front page. Would love to make sure that all my sites have show latest date in the snippets.

[DojoGuy]

This would be really hard to pinpoint without seeing the page.

As it all depends on what's on your page.

For example, if it's a blog post that you just wrote, but put the timestamp at last year by accident, google will see that in the code and use that.

Another example could be that somewhere in the text you've written "in december 2009 SEO was a lot different" it could incorrectly pick that up and place it within other snippets.