How much time google takes to assign PR to websites. One of my website is 8 months old using wordpress, more than 35 articles which contains 100% unique contents. Proper on-page SEO and on some keywords, articles of my website are on first page of google. Following High PR back links are on my page PR 7 = 1 back link PR 6 = 2 back links PR 5 = 4 back links PR 4 = more than 4 and many back links from PR 2 pages. All above back links are do-follow also many no-follow back links are also indexed in search engines. In presence of all above back links, I think, My website should have at least PR 1 or 2, but it's still 0. What may be the reason?