I've been using Ryan Tomayko's date/performance library, which is pretty fast, especially if you use it along with his date/memoize module. http://github.com/r

I've been using Ryan Tomayko's date/performance library, which is pretty fast, especially if you use it along with his date/memoize module. http://github.com/rtomayko/date-performance http://github.com/rtomayko/date-performance