I think writers’ room for the show EUREKA contains the single awesomest, and probably nerdiest, wall clock ever:

For a better view of it, go to this post on the official EUREKA writers’ blog and scroll down. It should be the fifth picture.

Uncommon Goods sells it for $25, and will also include a cheat sheet for those of us who don’t possess Ph.D’s in mathematics from MIT:

12 – a radical
1 – Legendre’s constant is a mathematical constant occurring in a formula conjectured by Adrien-Marie Legendre to capture the asymptotic behavior of the prime-counting function. Its value is now known to be exactly 1.
2 – A joke in the math world: An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says, “You’re all idiots,” and pours two beers.
3 – A unicode character XML “numeric character reference.”

I actually knew what 8:00 is — an illustration of binary code — so I guess I’m not a complete #MathFail.