Not being an expert but wanted to pass along what I believe is truth on the subject.
 
Based on the Biblical account of all the signs, Rick Larson a Lawyer,  did some research on this and did a movie/documentary on it Called
'The Bethlehem Star'    http://www.bethlehemstar.net/
 
After all the evidence he makes his claim to Jesus' Birthday being exactly on September 29, 2BC......9/29/2
And then goes on and finds Jesus' Death Day  April 3, 33 AD.....  4/3/33