same here, when does google plan on giving advertisers and publishers an idea on when they do an update?
Google page rank updates once in every three months and their serps are changed every day or maybe every hour..
Why don't you stop with these ridiculous threads?! Aren't you aware that only few people in google have that info and it is never being shared? If you are so interested when - contact google and pray god, the devil, some entity or whatever you wish to get an answer.... ...but still since I am a major oracle, I will however tell you! It will happen exactly at 11:11 o'clock GMT+2, on 11th of September in year 111111.
It takes one month to one year for Google to update lerry Page rank but considering the past one year pattern it usually takes 3 months to update the PR.
Google updates PageRank every 3 to 6 month and about keyword rank for which u have to do some high quality seo on page and seo off page.
There's no update for keyword rank like for pr rank... Pr only is updated once around 3 months, keyword rank you can say it's update instantly, not like every 3 months or on a schedule.