International Days Calendar

The International Days Calendar presents the dates of events which, often promoted by the United Nations, are celebrated or commemorated on a worldwide level.

International Days Calendar



The primary objective of International or World Days is to promote awareness of a particular activity or topic of interest every year by gaining worldwide attention.

As the principal promoter of International Days are groups belonging to the United Nations, they are often created for the purpose of promoting worthwhile causes, such as, preservation of the planet´s resources and recognition of the Rights to Equality, Healthcare and Education.

International Days in January

  • 27th January: International Day of Commemoration in Memory of the Victims of the Holocaust

International Days in February

  • 4th February: World Cancer Day
  • 13th February: World Radio Day
  • 20th February: World Day of Social Justice
  • 21st February: International Mother Language Day

International Days in March

  • 4th February: World Cancer Day
  • 13th February: World Radio Day
  • 20th February: World Day of Social Justice
  • 21st February: International Mother Language Day

International Days in April

  • 2nd April: World Autism Awareness Day
  • 4th April: International Day for Mine Awareness and Assistance in Mine Action
  • 6th April: International Day of Sport for Development and Peace
  • 7th April:Day of Remembrance of the Victims of the Rwanda Genocide
  • 7th April: World Health Day
  • 12th April: International Day of Human Space Flight
  • 22nd April: International Mother Earth Day
  • 23rd April: International Mother Earth Day
  • 23rd April: World Book and Copyright Day
  • 23rd April: English Language Day
  • 25th April: World Malaria Day
  • 28th April: World Day for Safety and Health at Work
  • 29th April: Day of Remembrance for all Victims of Chemical Warfare
  • 30th April: International Jazz Day

International Days in May

  • 3rd May: World Press Freedom Day
  • 8-9th May: Time of Remembrance and Reconciliation for those who lost their lives during the Second World War
  • 15th May: International Day of Families
  • 21st May: World Day for Cultural Diversity for Dialogue and Development
  • 22nd May: International Day for Biological Diversity
  • 31st May: World No Tobacco Day

International Days in June

  • 1st June: Global Day of Parents
  • 4th June: International Day of Innocent Children Victims of Aggression
  • 5th June: World Environment Day
  • 8th June: World Oceans Day
  • 12th June: World Day against Child Labor
  • 14th June: World Blood Donor Day
  • 15th June: World Elder Abuse Awareness Day
  • 17th June: World Day to Combat Desertification and Drought
  • 20th June: World Refugee Day
  • 23rd June: United Nations Public Service Day
  • 23rd June: International Widows´ Day
  • 26th June: International Day against Drug Abuse and Illicit Trafficking
  • 26th June: United Nations International Day in Support of Victims of Torture

International Days in July

  • 11th July: World Population Day
  • 18th July: Nelson Mandela International Day
  • 28th July: World Hepatitis Day
  • 30th July: International Day of Friendship

International Days in August

  • 12th August: International Youth Day
  • 19th August: World Humanitarian Day
  • 23rd August: International Day for the Remembrance of the Slave Trade and its Abolition
  • 29th August: International Day against Nuclear Tests

International Days in September

  • 5th September: International Day of Charity
  • 8th September: International Literacy Day
  • 15th September: International Day of Democracy
  • 16th September: International Day for the Preservation of the Ozone Layer
  • 21st September: International Day of Peace
  • 25th September: World Maritime Day
  • 27th September: World Tourism Day

International Days in October

  • 1st October: International Day of Older Persons
  • 2nd October: International Day of Non-Violence
  • 5th October: World Teachers´ Day
  • 9th October: World Post Day
  • 16th October: World Food Day
  • 17th October: International Day for the Eradication of Poverty
  • 24th October: United Nations Day

International Days in November

  • 6th November: International Day for Preventing the Exploitation of the Environment in War and Armed Conflict
  • 10th November: World Science Day for Peace and Development
  • 16th November: International Day for Tolerance
  • 16th November (3rd Sunday in Nov): World Day of Remembrance for Road Traffic Victims
  • 20th November: Universal Children´s Day
  • 21st November: World Television Day
  • 25th November: International Day for the Elimination of Violence against Women
  • 29th November: International Day of Solidarity with the Palestinian People

International Days in December

  • 1st December: World AIDS Day
  • 2nd December: International Day for the Abolition of Slavery
  • 3rd December: International Day of Persons with Disabilities
  • 5th December: World Soil Day
  • 9th December: International Anti-Corruption Day
  • 10th December: Human Rights Day
  • 18th December: International Migrants Day
  • 20th December: International Human Solidarity Day