It happens when it happens and can happen over time. I have never seen an accurate time predictor although there are numerous tools that attempt to figure out what your PR will be when the tool bar is updated. Keep in mind that actual PR is a continual state as far as Google is concerned, not periodic.
I guess no one knows when is the exact time for Google to update their page ranks .. only God and Google know .. Amen
Hi, Google PR update will occur in late September 2009. Normally, it takes 3 months on the average. So, looking back to its previous update, September ends seems to go with it.
unfortunally it's gonna be like that but you alway rely to third party-pagerank services that will show new pagerank numbers every month.
As far as I know google will update every quarter in a year but I'm not so sure how google will qualify and quantify our site. Is it with more backlinks or relevant content or both or something that we don't know yet. Sometimes google will change its algorithm anytime but what it is really the main criteria how they come up that kind of PR.
I´m not certain but I think somethings happening. A few of my pages on one of my sites has been updated. I went from 0 to 3 on some sub-pages on my site www.webbmax.se