When Is Pi Day 2024. Pi day is on march 14, and any day that combines fun, education, and pie is a day worth celebrating! Maths lovers love it, and it's their chance to.
Pi day, celebrated on march 14th (3/14), pays homage to the mathematical constant π (pi), which represents the ratio of a circle’s circumference to its. Pi, also known by the greek letter “π,” is a.