Your link goes to an area in your portal that we can't access without access to your portal. You would need to share a preview link to your blog. That would be helpful too since There are so many possible scenerios I'd have to write you a book to cover them all.
If have frequently added information into the contents loop, per item, by placing a text module, for instance, into the post markup and pulling it's value into the listing pages content loop. I would imagine you are using a custom module though and this wasn't possible with custom modules before the beta release. I would imagine it still isn't now, but if you can set the read time from the module to a variable you can grab that variable. It's all a little tricky and complicated to do and explain.
Unfortunately we haven't published anything yet using this template so I can't give you a live example. We hope to have it ready next week and I will add in the link to the post as soon as it is available.