Pi day is on March 14th or 3/14. This is because an approximation of the number pi is 3.14.
March 14th on the 15th hour 9th minute and 2nd second. 3.141592 equals pi
March 14
the "d" doesn't mean anything really it more like saying it starts at day like in h-hour it marks the beginning of what happenedanswer:it simply stands for Date Day
Today, march 14, is pi day.