I already sound nitpicky.
So, after exploring some of the rather hilarious comments on e621, I noticed something weird.
One comment has a time of 1 year.
Another has a time of 12 months.
Can someone help me elaborate as to why that is?

Everything slightly less than one year old will be rounded up to 12 months ; anything slightly more than one year old will rounded down to 1 year.

A year has 365 days - 366 on leap year, I doubt that's taken into account -, so I don't seem to understand your point, or am I ovelooking it :/
You can place your mouse over, for example, your post date (Sep 13, 2012 04:39PM) or Kald's (Sep 13, 2012 05:31PM), or mine (Sep 13, 2012 07:26PM), unless using a hand-held device

Makes sense to me, I need to really think about stuff.
Thank you :3