N**ational Pi Day is an annual celebration of the mathematical constant Pi (π)**, which represents the ratio of a circle’s circumference to its diameter. **Pi Day** is observed on **March 14th (3/14) each year**, as the first three digits of Pi are 3.14.

## When is National Pi Day 2023

National Pi Day 2023 takes place on Tuesday, March 14, 2023.

## When is National Pi Day 2024

National Pi Day 2024 takes place on Thursday, March 14, 2024.

## When is National Pi Day 2025

National Pi Day 2025 takes place on Friday, March 14, 2025.

In 2026, National Pi Day will be celebrated on Saturday, March 14, 2026. In 2027, National Pi Day will be celebrated on Sunday, March 14, 2027. In 2028, National Pi Day will be celebrated on Tuesday, March 14, 2028. In 2029, National Pi Day will be celebrated on Wednesday, March 14, 2029. In 2030, National Pi Day will be celebrated on Thursday, March 14, 2030.

## Holidays in March

- When is National Pi Day National Pi Day is an annual event and always takes place every year on March 14.
- When is National Potato Chip Day National Potato Chip Day is an annual event and always takes place every year on March 14.
- When is National Children’s Craft Day National Children’s Craft Day is an annual event and always takes place every year on March 14.
- When is National Save a Spider Day National Save a Spider Day is an annual event and always takes place every year on March 14.
- When is Science Education Day Science Education Day is an annual event and always takes place every year on March 14.
- When is Dumbstruck Day Dumbstruck Day is an annual event and always takes place every year on March 15.

## How to celebrate National Pi Day

**To celebrate National Pi Day**, people often engage in activities related to math and pie, such as hosting pie-baking contests or reciting as many digits of Pi as possible. Many schools and universities also hold educational events and lectures about the history and significance of Pi.

**In the United States**, the Exploratorium museum in San Francisco, California, is known for hosting an annual Pi Day celebration with a variety of math-related activities, including a Pi procession and pie-eating contest. Additionally, many bakeries and restaurants offer special deals on pie to commemorate the occasion.

**Around the world**, Pi Day is celebrated in a variety of ways. **In Japan**, it is customary to eat pie on January 23rd, which is known as “Pie Day” because the numbers in the date (1/23) represent the first three digits of Pi in their decimal form. In some countries, such as Denmark, the day is celebrated on July 22nd (22/7), which is another common approximation of Pi.

Overall, **National Pi Day** is a fun and educational way to celebrate the fascinating world of mathematics and indulge in delicious pie.

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