Pi Day 1920

Sunday, 14 March 1920

Pi Day is celebrated on 14 March in honour of the mathematical constant pi (3.14), with educational activities, mathematics events, and playful traditions such as eating pie.

Frequently asked questions

When is Pi Day 1920?
Pi Day 1920 is on Sunday, 14 March 1920.
What day of the week is Pi Day 1920?
It falls on Sunday.
How is Pi Day calculated?
This event is observed every year on 14 March.