Tuesday, 14 March 1978
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 1978?
- Pi Day 1978 is on Tuesday, 14 March 1978.
- What day of the week is Pi Day 1978?
- It falls on Tuesday.
- How is Pi Day calculated?
- This event is observed every year on 14 March.