UN Observances

The United Nations observes designated days, weeks, years, and decades, each with a theme, or topic. By creating special observances, the United Nations promotes international awareness and action on these issues.  The majority of observances have been established by resolutions of the United Nations General Assembly, although some have been designated by UN specialized agencies.  The United Nations also observes anniversaries of key events in its history.



27 January

International Day of Commemoration in Memory of the Victims
of the Holocaust

4 February

World Cancer Day [WHO]

6 February

International Day of Zero Tolerance to Female Genital Mutilation [WHO]

13 February

World Radio Day [UNESCO]

20 February

World Day of Social Justice

21 February 

International Mother Language Day

 1 March

Zero Discrimination Day [UNAIDS]

 3 March

World Wildlife Day

 8 March

International Women's Day

 20 March

French Language Day at the UN

 20 March

International Day of Happiness

 21 March

International Day for the Elimination of Racial Discrimination

 21 March

International Day of Nowruz

 21 March

World Poetry Day [UNESCO]

 21 March

World Down Syndrome Day

 21 March

International Day of Forests and the Tree

 22 March

World Water Day

 23 March

World Meteorological Day [WMO]

 24 March

World Tuberculosis Day [WHO]

 24 March

International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims

 25 March

International Day of Solidarity with Detained and Missing Staff Members

 25 March

The International Day of Remembrance for the Victims of Slavery and the
Transatlantic Slave Trade

2 April

World Autism Awareness Day

4 April

International Day for Mine Awareness and Assistance in Mine Action

 6 April

International Day of Sport for Development and Peace

7 April

World Health Day [WHO]

7 April

Commemoration of the Genocide in Rwanda

12 April

International Day of Human Space Flight

20 April

Chinese Language Day at the UN

22 April

International Mother Earth Day

23 April

English Language Day at the UN

23 April

World Book and Copyright Day [UNESCO]

25 April

World Malaria Day [WHO]

26 April

World Intellectual Property Day [WIPO]

28 April

World Day for Safety and Health at Work [ILO]

29 April

Day of Remembrance for all Victims of Chemical Warfare

30 April

International Jazz Day [UNESCO]


3 May

World Press Freedom Day

8-9 May

Time of Remembrance and Reconciliation for Those Who Lost Their Lives
during the Second World War

10-11 May

World Migratory Bird Day [UNEP]

15 May

International Day of Families

17 May

World Telecommunication and Information Society Day

21 May

World Day for Cultural Diversity for Dialogue and Development

22 May

International Day for Biological Diversity

29 May

International Day of UN Peacekeepers

31 May

World No-Tobacco Day [WHO]

1 June

"Vesak", the Day of the Full Moon

1 June

Global Day of Parents

4 June

International Day of Innocent Children Victims of Aggression

5 June

World Environment Day

6 June

Russian Language Day at the UN

8 June

World Oceans Day

12 June

World Day Against Child Labour

13 June

International Albinism Awareness Day

14 June

World Blood Donor Day [WHO]

15 June

World Elder Abuse Awareness Day

17 June

World Day to Combat Desertification and Drought

20 June

World Refugee Day

21 June

International Day of Yoga

23 June

United Nations Public Service Day

23 June

International Widow’s Day

25 June

Day of the Seafarer (IMO)

26 June

International Day against Drug Abuse and Illicit Trafficking

26 June

United Nations International Day in Support of Victims of Torture

4 July (first Saturday 
of July)

International Day of Cooperatives

11 July

World Population Day

15 July

World Youth Skills Day

18 July

Nelson Mandela International Day

28 July

World Hepatitis Day [WHO]

30 July

International Day of Friendship

30 July

World Day against Trafficking in Persons

9 August

International Day of the World's Indigenous People

12 August

International Youth Day

19 August

World Humanitarian Day

23 August

International Day for the Remembrance of the Slave Trade and Its Abolition [UNESCO]

29 August

International Day against Nuclear Tests

30 August

International Day of the Victims of Enforced Disappearances

5 September

International Day of Charity

8 September

International Literacy Day [UNESCO]

12 September

United Nations Day for South-South Cooperation

15 September

International Day of Democracy

16 September

International Day for the Preservation of the Ozone Layer

21 September

International Day of Peace

25 (last week of September) World Maritime Day [IMO]
26 September

International Day for the Total Elimination of Nuclear Weapons

27 September

World Tourism Day [WTO]

1 October

International Day of Older Persons

2 October

International Day of Non-Violence

5 October (first Monday 
in October)

World Habitat Day

5 October

World Teacher's Day

9 October

World Post Day

10 October

World Mental Health Day [WHO]

11 October

International Day of the Girl Child

12 October

Spanish Language Day at the UN

13 October

International Day for Disaster Reduction

15 October

International Day of Rural Women

16 October

World Food Day

 17 October

International Day for the Eradication of Poverty

24 October

United Nations Day

27 October

World Day for Audiovisual Heritage [UNESCO]

31 October

World Cities Day

2 November

International Day to End Impunity for Crimes against Journalists

6 November

International Day for Preventing the Exploitation of the Environment
in War and Armed Conflict

10 November

World Science Day for Peace and Development [UNESCO]

14 November

World Diabetes Day [WHO]

15 November (third Sunday 
in November)

World Day of Remembrance for Road Traffic Victims

16 November

International Day for Tolerance

19 November

World Toilet Day

19 November (third Thursday 
in November)

World Philosophy Day

20 November

Universal Children’s Day

20 November

Africa Industrialization Day

21 November

World Television Day

25 November

International Day for the Elimination of Violence against Women

29 November

 International Day of Solidarity with the Palestinian People

1 December

World AIDS Day

2 December

International Day for the Abolition of Slavery

3 December

International Day of Persons with Disabilities

5 December

International Volunteer Day for Economic and Social Development

5 December

World Soil Day [FAO]

7 December

International Civil Aviation Day [ICAO]

9 December International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime
9 December

International Anti-Corruption Day

10 December

Human Rights Day

11 December

International Mountain Day

18 December

International Migrants Day

18 December

Arabic Language Day at the UN

20 December

International Human Solidarity Day