International days are annual observances, set up mostly by the United Nations and its specialized agencies, to push important issues into the global spotlight. They cover a lot of ground health, education, human rights, the environment, science, culture, peace, and sustainable development all get their own dedicated dates on the calendar.
That’s really the point of international observances: they pull people together around goals that no single country can tackle alone. A day on the calendar builds awareness, nudges people toward action, and reminds nations that some problems are everyone’s responsibility. World Environment Day pushes conservation. International Women’s Day puts gender equality front and center. World Health Day turns attention toward public health gaps that might otherwise slip under the radar.
This table includes the major internationally recognized annual observances with fixed dates. Some international observances (such as World Migratory Bird Day, World Habitat Day, and World Toilet Summit-related events) are observed on specific weekdays rather than fixed calendar dates.

| Date | International Day |
|---|---|
| January 4 | World Braille Day |
| January 24 | International Day of Education |
| January 26 | International Day of Clean Energy |
| January 27 | International Day of Commemoration in Memory of the Victims of the Holocaust |
| February 2 | World Wetlands Day |
| February 4 | World Cancer Day |
| February 6 | International Day of Zero Tolerance for Female Genital Mutilation |
| February 10 | World Pulses Day |
| February 11 | International Day of Women and Girls in Science |
| February 13 | World Radio Day |
| February 20 | World Day of Social Justice |
| February 21 | International Mother Language Day |
| March 1 | Zero Discrimination Day |
| March 3 | World Wildlife Day |
| March 8 | International Women’s Day |
| March 20 | International Day of Happiness |
| March 20 | French Language Day |
| March 21 | International Day for the Elimination of Racial Discrimination |
| March 21 | World Poetry Day |
| March 21 | International Day of Forests |
| March 21 | World Down Syndrome Day |
| March 21 | International Day of Nowruz |
| March 22 | World Water Day |
| March 23 | World Meteorological Day |
| March 24 | World Tuberculosis Day |
| March 25 | International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade |
| March 25 | International Day of Solidarity with Detained and Missing Staff Members |
| April 2 | World Autism Awareness Day |
| April 4 | International Day for Mine Awareness and Assistance in Mine Action |
| April 5 | International Day of Conscience |
| April 6 | International Day of Sport for Development and Peace |
| April 7 | World Health Day |
| April 12 | International Day of Human Space Flight |
| April 21 | World Creativity and Innovation Day |
| April 22 | International Mother Earth Day |
| April 23 | World Book and Copyright Day |
| April 23 | English Language Day |
| April 23 | Spanish Language Day |
| April 24 | International Day of Multilateralism and Diplomacy for Peace |
| April 25 | World Malaria Day |
| April 26 | World Intellectual Property Day |
| April 28 | World Day for Safety and Health at Work |
| April 30 | International Jazz Day |
| May 2 | World Tuna Day |
| May 3 | World Press Freedom Day |
| May 8 | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War |
| May 10 | World Migratory Bird Day (second Saturday of May) |
| May 12 | International Day of Plant Health |
| May 15 | International Day of Families |
| May 16 | International Day of Living Together in Peace |
| May 17 | World Telecommunication and Information Society Day |
| May 20 | World Bee Day |
| May 21 | World Day for Cultural Diversity for Dialogue and Development |
| May 22 | International Day for Biological Diversity |
| May 23 | International Day to End Obstetric Fistula |
| May 29 | International Day of UN Peacekeepers |
| May 31 | World No Tobacco Day |
| June 1 | Global Day of Parents |
| June 3 | World Bicycle Day |
| June 5 | World Environment Day |
| June 6 | Russian Language Day |
| June 7 | World Food Safety Day |
| June 8 | World Oceans Day |
| June 12 | World Day Against Child Labour |
| June 14 | World Blood Donor Day |
| June 15 | World Elder Abuse Awareness Day |
| June 17 | World Day to Combat Desertification and Drought |
| June 18 | Sustainable Gastronomy Day |
| June 19 | International Day for the Elimination of Sexual Violence in Conflict |
| June 20 | World Refugee Day |
| June 21 | International Day of Yoga |
| June 23 | United Nations Public Service Day |
| June 23 | International Widows’ Day |
| June 25 | Day of the Seafarer |
| June 26 | International Day Against Drug Abuse and Illicit Trafficking |
| June 26 | International Day in Support of Victims of Torture |
| June 27 | Micro-, Small and Medium-sized Enterprises Day |
| June 29 | International Day of the Tropics |
| June 30 | International Asteroid Day |
| July 11 | World Population Day |
| July 15 | World Youth Skills Day |
| July 18 | Nelson Mandela International Day |
| July 20 | International Moon Day |
| July 25 | World Drowning Prevention Day |
| July 28 | World Hepatitis Day |
| July 30 | International Day of Friendship |
| July 30 | World Day Against Trafficking in Persons |
| August 9 | International Day of the World’s Indigenous Peoples |
| August 12 | International Youth Day |
| August 19 | World Humanitarian Day |
| August 21 | International Day of Remembrance and Tribute to the Victims of Terrorism |
| August 22 | International Day Commemorating the Victims of Acts of Violence Based on Religion or Belief |
| August 23 | International Day for the Remembrance of the Slave Trade and Its Abolition |
| August 29 | International Day Against Nuclear Tests |
| September 5 | International Day of Charity |
| September 7 | International Day of Clean Air for Blue Skies |
| September 8 | International Literacy Day |
| September 10 | World Suicide Prevention Day |
| September 15 | International Day of Democracy |
| September 16 | International Day for the Preservation of the Ozone Layer |
| September 21 | International Day of Peace |
| September 23 | International Day of Sign Languages |
| September 26 | International Day for the Total Elimination of Nuclear Weapons |
| September 27 | World Tourism Day |
| September 28 | International Day for Universal Access to Information |
| September 29 | International Day of Awareness of Food Loss and Waste |
| October 1 | International Day of Older Persons |
| October 2 | International Day of Non-Violence |
| October 5 | World Teachers’ Day |
| October 9 | World Post Day |
| October 10 | World Mental Health Day |
| October 11 | International Day of the Girl Child |
| October 13 | International Day for Disaster Risk Reduction |
| October 15 | International Day of Rural Women |
| October 16 | World Food Day |
| October 17 | International Day for the Eradication of Poverty |
| October 24 | United Nations Day |
| October 24 | World Development Information Day |
| October 31 | World Cities Day |
| November 2 | International Day to End Impunity for Crimes against Journalists |
| November 5 | World Tsunami Awareness Day |
| November 6 | International Day for Preventing the Exploitation of the Environment in War and Armed Conflict |
| November 10 | World Science Day for Peace and Development |
| November 14 | World Diabetes Day |
| November 16 | International Day for Tolerance |
| November 19 | World Toilet Day |
| November 20 | World Children’s Day |
| November 20 | Africa Industrialization Day |
| November 21 | World Television Day |
| November 25 | International Day for the Elimination of Violence against Women |
| November 29 | International Day of Solidarity with the Palestinian People |
| December 1 | World AIDS Day |
| December 2 | International Day for the Abolition of Slavery |
| December 3 | International Day of Persons with Disabilities |
| December 5 | World Soil Day |
| December 5 | International Volunteer Day |
| December 7 | International Civil Aviation Day |
| December 9 | International Anti-Corruption Day |
| December 10 | Human Rights Day |
| December 11 | International Mountain Day |
| December 12 | International Universal Health Coverage Day |
| December 18 | International Migrants Day |
| December 20 | International Human Solidarity Day |
Read more here
Today, the International Days List runs past 200, celebrated in one form or another across the globe every year. Some carry official UN recognition; others come from different international bodies entirely. Either way, they add up to a system that educates the public, nudges policy, and keeps countries working toward a more sustainable, peaceful, and inclusive world.
Most of these international days trace back to a UN General Assembly resolution, adopted after member states recognize a challenge or milestone that needs coordinated attention. Others come from agencies working outside that process entirely: the World Health Organization, UNESCO, the Food and Agriculture Organization, and the International Labour Organization all designate their own. None of them count as public holidays, though. Instead, they give governments, schools, businesses, non-profits, and everyday communities a reason to run campaigns, host educational events, and get people talking.





