Hi - Now that I have immigrated here as a PR, I am eligible to sponsor my parents to become PR. I am curious about the OAS and other benefits they can receive as seniors (over age of 65). I know the minimum requirement is at least 10 years of staying in Canada after age of 18. Do they count the 10 years by the days ? Does the time when they were here as visitors (before PR is approved) count towards the 10 years ? How much approximately can they get (from OAS and other benefits) assuming they don't have any income ? Thanks.