Pi Day 2011 is on Monday, 14 March 2011.

How is Pi Day calculated?

This event is observed every year on 14 March.

When is Pi Day 2011?

Name: Pi Day
Start: 2011-03-14
End: 2011-03-14
Location: Worldwide

Monday, 14 March 2011

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 2011?: Pi Day 2011 is on Monday, 14 March 2011.
What day of the week is Pi Day 2011?: It falls on Monday.
How is Pi Day calculated?: This event is observed every year on 14 March.