Pi Day 1985

Thursday, 14 March 1985

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 1985?
Pi Day 1985 is on Thursday, 14 March 1985.
What day of the week is Pi Day 1985?
It falls on Thursday.
How is Pi Day calculated?
This event is observed every year on 14 March.