Monday 15th September 2025 | There is a Day for that!

This is our day guide for Monday September 15th 2025 which shows you at a glance what's happening on this day around the world. Using the calendar on this page, you can look at a day guide for any day. Why not look up your birthday to see which holidays you share it with?

Observances on September 15th 2025

World Afro Day

A day where people are encouraged to celebrate kinky, coiled or curly afro textured hair and to learn more about it.

M?ori Language Week

Find out the dates, history and traditions of Māori Language Week.

Serbian Unity, Freedom and National Flag Day

The Salonica front, was a military theatre of the first world war formed as a result of an attempt by the Allied Powers to aid Serbia, in 1915, against the combined attack of Germany, Austria-Hungary and Bulgaria.

Return of Primorska to the Motherland

Primorsko Reunification Day has been a national holiday since 2006, but it is not a work-free day.

Google.com Day

Business
USA

Maybe Google should do a do0dle for their birthday?

Greenpeace Day

Nature
USA

Find out the dates, history and traditions of Greenpeace Day

International Dot Day

Culture
USA

A day to consider the mark that you make upon the world.

National Creme de Menthe Day

Alcohol
USA

Find out the dates, history and traditions of National Creme de Menthe Day

National Double Cheeseburger Day

Food
USA

Find out the dates, history and traditions of National Double Cheeseburger Day

National Felt Hat Day

Clothing
USA

Find out the dates, history and traditions of National Felt Hat Day

National Linguine Day

Food
USA

Find out the dates, history and traditions of National Linguine Day

Hispanic Heritage Month

The monthlong period is a time to learn about the people who have influenced America in such a great way and learn about the culture that has significantly influenced American culture.

National Online Learning Day

National Online Learning Day showcases how students of all ages are thriving with the ability to learn online—anywhere, anytime.

International Day of Democracy

The International Day of Democracy provides an opportunity to review the state of democracy in the world.

Cochabamba Day

Bolivia

The Day of the Cochabamba Department takes place on September 14th marking the second foundation of the city on that day in 1574.

Costa Rica Independence Day

Costa Rica

Local celebrations, national pride and a spirit of community mark Costa Rica’s Independence Day. One of the year’s most important holidays, Costa Rica celebrates its freedom from colonial Spain with peaceful festivities and historic traditions.

El Salvador Independence Day

El Salvador

Celebrates independence from Spain, achieved in 1821

Guatemala Independence Day

Guatemala

Commemorates independence of the Central American provinces from Spanish rule in 1821

Honduras Independence Day

Honduras

Commemorates the independence of the Central American provinces from Spanish rule in 1821

Respect for the Aged Day

Japan

Respect of the Aged Day was established as a national holiday in 1966 to express respect for the elders in the community

Nicaragua Independence Day

Nicaragua

Commemorates independence of the Central American provinces from Spanish rule in 1821

Day of Our Lady of Sorrows

Slovakia

In 1727, Pope Benedict XIII declared Our Lady of Sorrows to be respected by the Church and its members as a Patron of Slovakia and later in 1966 was declared by Pope Paul VI as the main Patron.