UN International Days and Weeks

The UN has established a set of Days and Weeks (as listed below), Years and Decades to help focus the world on the issues in which the UN has an interest and commitment. The UN calls on Member States and other organizations to mark these days in ways which reflect their priorities.

Sometimes the promotion of a specific day is led by a specific UN agency or programme, for example the UNAIDS leads the World AIDS Day.

Some UN agencies also have their own international days (e.g. WHO’s World TB Day and UNESCO’s World Philosophy Day), established and promoted by the agency but not designated by the UN General Assembly for the full UN system.

It is important that young people are part of celebration of international days to help reflecting on some of the challenges of child and youth development and also to find out strategies of solving these challenges.

Please click on the below months for links to the events occuring in each of the months:


27th January – International Day of Commemoration in memory of the victims of the Holocaust


21st February – International Mother Language Day


21st March –International Day for the Elimination of Racial Discrimination

21st – 28th March – Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination
22nd March – World Water Day

23rd March – World Meteorological Day


4th April – International Day for Mine Awareness and Assistance in Mine Action

7th April – World Health Day

23rd April – World Book and Copyright Day


3rd May – World Press Freedom Day

15th May – International Day of Families

17th May – World Information Society Day (formerly World Telecommunication Day)

21st May – World Day for Cultural Diversity for Dialogue and Development

22nd May – International Day for Biological Diversity (formerly December 29, changed in 2001)

25th May – 1st June – Week of Solidarity with the Peoples of Non-Self-Governing Territories

29th May – International Day of United Nations Peacekeepers

31st May – World No-Tobacco Day


4th June – International Day of Innocent Children Victims of Aggression

5th June – World Environment Day

17th June – World Day to Combat Desertification and Drought

20th June – World Refugee Day

23rd June – United Nations Public Service Day

26th June – International Day Against Drug Abuse and Illicit Trafficking and
International Day in Support of Victims of Torture


First Saturday – International Day of Cooperatives

11th July – World Population Day


9th August – International Day of the World’s Indigenous People

12th August – International Youth Day

23rd August – International Day for the Remembrance of the Slave Trade and its Abolition


8th September – International Literacy Day

16th September – International Day for the Preservation of the Ozone Layer

21st September – International Day of Peace (formerly the opening day of the UN General Assembly, changed to a set date as of 2002)

During last week – World Maritime Day


1st October – International Day for Older Persons

4th-10th October – World Space Week

5th October – World Teacher’s Day

First Monday – World Habitat Day

Second Wednesday – International Day for Natural Disaster Reduction

9th October – World Post Day

10th October – World Mental Health Day

16th October – World Food Day

17th October – International Day for the Eradication of Poverty

24th – 30th October – Disarmament Week


6th November – International Day for Preventing the Exploitation of the Environment in War and Armed Conflict

14th November – World Diabetes Day

16th November – International Day of Tolerance

Third Sunday – World Day of Remembrance for Road Traffic Victims

20th November – Universal Children’s Dayand Africa Industrialization 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


1st December – World AIDS Day

2nd December – International Day for the Abolition of Slavery

3rd December – International Day of Disabled Persons

5th December – International Volunteer Day for Economic and Social Development

7th December – International Civil Aviation Day

9th December – International Anti-Corruption Day

10th December – Human Rights Day

11th December – International Mountain Day

18th December – International Migrants Day

19th December – United Nations Day for South-South Cooperation

20th December – International Human Solidarity Day