Depends on how you define blogging. If you mean "Writing about my breakfast, going to the bank, going to work then going to bed early" then you'll probably never earn a cent.
Blog posts need to rank well in Google, be on interesting topics that people want to read about (shocking, informative or funny) and also need to be posted regularly (at least 1-2 posts a week minimum).
If you keyword correctly, and keep at it for 6 months, you'll generally start to see a rise in traffic and income. But as every blog/blogger is different, there isn't a "magical cut off point" for when you become successful.
You'll make almost no money off regular followers but quite a bit off search engine visitors and the like, if done correctly.
And by the way, Hubpages is not for blogging. It's for writing stand alone, quality content articles.