One of the sites I work on has had a major dip in Google (page 2 to page 13) in the last week. I think this was due to an old date (Dec 16) from the news section on the site being taken by Google, as it showed this date on the results page. There was no other explanation, and in terms of numbers of links, link authority, domain authority etc, as well as on-page elements it is as good as the sites around where is used to be. Does anyone else have any experience of an issue with dates on the site like this? It has since been removed and re-chached but results haven't improved. When sites have dived down the ranking for a particular reason does it normally take a while to return to it's previous position? Thanks for any help anyone can provide.