WHY BIRTHDAYS ????  
With due respect to all the participants,
 if Bhai Jetha jee: Guru Ram Das was born on 25 Asu Samvat 1591, equivalent date of which was then 24th September 1534 A. D.
   Why to go on changing every year?
However, I am of the view that EXCEPT Sikh Religion’s Foundation Day (which is considered to be Guru Nanak Sahib’s Birthday, though the Sikh Nation could not determine Actual Date out of 27 March 1469 or 20 October 1469), there is no need to celebrate the Birth Days merely to imitate the adherents of other religions.

   Gurmit Singh (Sydney)