Dog Years

I heard it mentioned recently that someone had referred to spending a Dog Year in a town. In essence they were saying they did not like it there and that time dragged.
It was this description that made me reflect on how we are all captive at times to our attitudes, how sometimes time seems to fly and at other times it seems to take forever.
So if a dog year is very roughly 7 human years (to use an approximate figure), how is it relevant if at all?