The International Day of Mathematics (IDM) is a worldwide celebration. Each year on March 14 all countries will be invited to participate through activities for both students and the general public in schools, museums, libraries and other spaces.

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Recent news

2024-01-02
Are you planning an event for the 2024 IDM? Let us know and we'll feature it in our map (coming soon).
2023-08-25
The UN General Assembly proclaimed 2024‑2033 as the International Decade of Sciences for Sustainable Development. Every year we will offer activities related to this topic.
2022-12-22
We updated the IDM logos for Catalan, Greek, Macedonian, Mongolian, Russian and Ukrainian. New logos in Bulgarian and Kurdish!
2022-12-22
The 2023 IDM is again part of the activities of the International Year of Basic Sciences for Sustainable Development (IYBSSD 2022-2023).
2019-11-26
UNESCO proclaimed March 14 as the International Day of Mathematics on the 40th session of the General Conference on November 26, 2019.

March 14 is already celebrated in many countries as Pi Day because that date is written as 3/14 in some countries and the mathematical constant Pi is approximately 3.14.

The International Day of Mathematics is a project led by the International Mathematical Union with the support of numerous international and regional organizations.

Take a look back at the celebrations, themes and worldwide challenges of the
2020, 2021, 2022, 2023, and 2024 editions of the International Day of Mathematics.

Join the 2025 celebration

The best way to celebrate the IDM is to host your own event.

Organize an event

Discover ideas and activities to celebrate with your community or in the classroom.

Prepare your venue

Get posters, pin designs, logos and many ideas to decorate your event space.

Publish it in our map

We'll help people in your town find out about your event.
Available a few months before IDM

During 2024 people and organizations all over the world hosted events in their cities:

Keep in touch and receive updates and news about the International Day of Mathematics via email

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Share news about your IDM activities using the hashtag #idm314.

The theme for 2025: Mathematics, Art, and Creativity

Every year we announce a theme to flavor the celebration, spark creativity and bring light to connections between mathematics and all sorts of fields, concepts and ideas.

The 2025 IDM theme celebrates the creativity found in mathematical discovery and art. Using mathematics in art opens doors to new ideas, beautiful and captivating creations.

We invite everyone to celebrate mathematics, art, and creativity, showcasing the harmony of logic and imagination, where numbers dance with colors, equations sculpt beauty, and ideas transcend boundaries to inspire and innovate. Creativity unites mathematics and art, fields that may seem separate, but were originally intertwined, both seeking to reveal the beauty of the universe.

These are the official translations of the theme to different languages:

English (US) Mathematics, Art, and Creativity
Chinese (Simplified) 数学、艺术与创意
Chinese (Traditional) 數學、藝術與創意
French Mathématiques, Art, et Créativité
German Mathematik, Kunst und Kreativität
Korean 수학, 예술 그리고 창의
Portuguese Matemática, Arte, e Criatividade
Spanish Matemáticas, Arte y Creatividad

Creative worldwide challenges

Each year we invite you to participate in a creative challenge along with your class, family, friends, colleagues or community.

In 2020, you made short videos showing the many ways that Mathematics is Everywhere.

See the 2020 video

In 2021, you used mathematics to create posters sharing ways to make the world better.

Visit the 2021 poster gallery

In 2022, you teamed up, or explored your town, to take pictures with mathematics.

Explore the 2022 photo galleries

In 2023 , you surprised us with your creativity and artistry creating unique comics with mathematics.

Explore the comic gallery