When exactly is the next google page rank update?

What is website Page Rank?

• read up a lot on page rank but still not sure i have it right. when does google really update page ranks?

• Answer:

  PageRank is a value Google gives to each page of a website in the form a numerical weighting between 0 and 10, the higher the better. The link analysis algorithm, used by Google, measures each pages relative importance within a website and assigns a PageRank value to it. Any pages PageRank can increase or decrease at any time depending on changes made to the page, quality and quantity of inbound links as well as many other factors. In recent years PageRank has depreciated in importance and there are some many other factors, algorithms and changes that PageRank no longer really carries the importance it once did. In fact most people are now not asking when will it be updated but if it will be updated.