why does google cache date keep changing?

[Fort Lauderdale]

Can anyone explain why google cache's a site today and than later that day the cache is from 2-3 weeks ago? this is crazy.

[wadowiczanka]

I think they have different versions on different databases, and whichever database comes up on your search you get that version. But I may be dead wrong...

[Bob Crain]

I have been noticing this for over a month. We know Google is in the process of updating the PR, but what you are probably seeing is a different data center then what you looked at eariler in the day.

When you mouse over the word Cached and look in the bottom left corner and you can see what data center is displayed.

[Fort Lauderdale]

Hey Bob:

didn't know about checking the data center - thanks.
john