Almost 1 million Americans will be blowing out birthday candles today. Oct. 5 is the most common birthday in the United States, according to a survey conducted by AnyBirthday.com.

On any given day, an estimated 750,000 Americans celebrate a birthday, but today, more than  960,000 will celebrate their special day, according to AnyBirthday.com

Among them are some famous faces, including Julie Andrews, Kate Winslet, Bernie Mac and Nicky Hilton.

And why is Oct. 5 such a popular day  for babies’ entering the world? One possible explanation is that the length of an average pregnancy is around 274 days. Counting backward, the date of conception for Oct. 5 babies would be New Year’s Eve.

Conversely, the website found that the most uncommon birthday is May 22, although it gave no explanation as to why.

Revelers will have a lot on their plates today, as Oct.  5  is also Do Something Nice Day, World Teacher’s Day, Balloons Around the World Day and National Apple Betty Day — which offers a nice excuse to indulge in that savory fall staple of apple crumble or apple crisp, on top of the birthday cake.