Schinckel.net

I’ve noticed a whole heap of blogs that use the “X hours after the fact” tagline as part of the comment. I’ve tried to implement this under Blogsome, but I’m struggling. I know I need to use the following: { comment_date } and { the_date } The problems I have encountered - Smarty doesn’t seem to like subtracting values that are dates, and I can’t seem to get them as numbers… Anyone done this?