Never miss an important date
What Day Is Pi Day 2026?
Saturday
Pi Day is on Saturday, March 14, 2026.
Get the free iPhone app with countdown widgets, reminder alerts, and easy sharing so you can plan ahead for any event.
Join 300k+ happy Outside users
17
days
Pi Day
Date details for Pi Day 2026
- Day of week: Saturday
- Date: Saturday, March 14, 2026
- Days remaining: 17
- Weeks remaining: 2
Also searched as: what day is Pi Day, when is Pi Day, date of Pi Day, days until Pi Day, Pi Day countdown.
Looking for Pi Day 2027?
About Pi Day
Pi Day 2026 is on Saturday, March 14th. The date 3/14 represents the first three digits of the mathematical constant pi (3.14).
History & Significance
Pi Day was founded by physicist Larry Shaw in 1988 at the San Francisco Exploratorium. In 2009, the U.S. House of Representatives officially recognized March 14th as National Pi Day. It also happens to be Albert Einstein's birthday.
More Event Days
Find out what day other events fall on.
Home Screen Widgets
Beautiful countdown widgets that sit right on your home screen.
Lock Screen Widgets
See your countdown without even unlocking your phone.
Live Activities
Real-time countdown updates on your Dynamic Island.