Been to the Future

What is time, anyway? Damned if I know, but I'm writing a philosophy term paper on the nature of time. It sure is interesting, I need to come up with 2000 words of what time really is, and how it works. I have an idea that might be original, but who knows how I might argue it?I'm going to have bring good old Achilles running a race against a turtle into this one, I think.