My daughter was born on June 13th. Well wishers suggested we change the date t `12 or 14!! My wife and me did not agree. Today our daughter is the most intelligent and beautiful girl (of course we the parents would say that) but others say that too!!
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Number 13 is considered inauspicious by westerners mainly; not by Indians. Indians have Rahu kalam, Gulika kalam etc. and certain days and stars inauspicious. I am just an ordinary Hindu; but never bothered about these things as bad. In fact I have benefited by attending crowded offices, Hospitals, Booking counters etc. along with start of travels on Fridays or Rahu time. Converting the disadvantage to advantage is the purpose of intelligence, I believe. "Your belief will help you" are the keywords. It's high time Indians come out of superstitious believes.