It's not. In 2013, "Pi Day" is on Thursday, March 14th.
The only part that's different from any other year is the 'Thursday' part.
Pi Day is on March 14th every year.
Pi Day is on march 14(3.14)
Pi day is on March 14th, because Pi=3.14 It is just a day to celebrate pi
Anniversary of Pi day is MARCH 14th.
Pi Day is March 14th because the first thee digits of pi are 3.14
The next pi day is on Saturday. Which is March 14, 2009.
AnswerPi day is on March 14th or 3/14.This is because an approximation of the number pi is 3.14.
Pi day is March 14, or 3/14 because Pi starts 3.14.... We celebrate peoples birthday on the day they were born. Einstein was born on March 14th so we celebrate his, and everyone else who was born on March 14th, on Pi day.
Pi = 3.14 + infinity
March 14.
March 14th (3/14) is often jokingly referred to as Pi Day.
March the 14th is the only pi day because it is: 3/14 (3.14 is pi)
march 14