The NLE exam December 2011 have already been scheduled by the Professional Regulation Commission (PRC). It will take place before the end of the year just like any other past test schedules held for the hopeful RNs-to-be in the Philippines.
All graduates are encouraged to take the certification test in order to become a certified RN. If you have graduated already, it doesn't matter at all. All you have to do is to apply for the exam before the deadline.