What Is Pi Day 2024 Date Holiday. We honour maths and how cool it is. Math enthusiasts around the world, from college kids to rocket scientists, celebrate pi day on thursday, which is march 14 or 3/14 โ the first three digits of an infinite number.
It’s all about celebrating the number pi, which is 3.14. So well known and beloved is pi, also written ฯ or 3.14, that it has.