Pi Day 2009 is on Saturday, 14 March 2009.

How is Pi Day calculated?

This event is observed every year on 14 March.

When is Pi Day 2009?

Name: Pi Day
Start: 2009-03-14
End: 2009-03-14
Location: Worldwide

Saturday, 14 March 2009

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 2009?: Pi Day 2009 is on Saturday, 14 March 2009.
What day of the week is Pi Day 2009?: It falls on Saturday.
How is Pi Day calculated?: This event is observed every year on 14 March.