Ist Parliament Sitting - 28th April 2008
5 years after the election - 08032013
Parliament automatically dissolved - 28th April 2013
GE13 must be within 60 days - 28th June 2013
However, should the Election Commission wishes to conduct the GE13 together with all the states except Sarawak, then the latest the election date shall be May 26th, 2013 because Negeri Sembilan had its first state assembly on the 26th of March 2008.
Now unless PM Najib wants to use his right to dissolve Parliaments, he need to do so before April 28th, or else he looses that opportunity and therefore probably be the 1st PM in Malaysia who did not exercise that right.
This is the 1st time that we see a complete 5 years (and +) since the last election.
Another 1st maybe...