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Day

Observance

January 1

New Year's Day

January 4

World Braille Day

January 26

International Customs Day recognized by the World Customs Organization

January 27

International Day of Commemoration in Memory of the Victims of the Holocaust, recognized by the UN

January 31

Street Children's Day

February 2 

World Wetlands Day

February 4

World Cancer Day, recognized by the UN and WHO

February 6 

International Day of Zero Tolerance to Female Genital Mutilation, recognized by WHO

February 11 

World Day of the Sick Instituted by Pope John Paul II

February 13 

World Radio Day, recognized by the UN and UNESCO

February 14 

World Valentine Day

February 20 

World Day of Social Justice, recognized by the UN

February 21 

International Mother Language Day, recognized by the UN and UNESCO

February 21 

International Human Rights Commission Constitution Day, recognized by the IHRC

February 22 

A Day Without News

February 28 

International Science Day

March 1 

World Civil Defence Day

March 1 

Zero Discrimination Day

March 3 

World Wildlife Day

March 8 

International Women's Day, recognized by the UN

March 11 

World Day of Muslim Culture, Peace, Dialogue and Film

March 13/20

World Sleep Day

March 14 

International Day of Action for Rivers

March 14 

Pi Day

March 15 

World Consumer Rights Day; World Contact Day

March 20 

International Day of the Francophonie

March 20

International Day of Happiness, recognized by the UN

March 20 

World Sparrow Day

March 21 

International Day for the Elimination of Racial Discrimination, recognized by the UN

March 21 

World Poetry Day, recognized by the UN and UNESCO

March 21 

International Day of Nowruz, recognized by the UN

March 21 

World Down Syndrome Day, recognized by the UN

March 21 

World Puppetry Day, recognized by UNIMA

March 21 

International Day of Forests, recognized by the UN

March 22 

World Water Day, recognized by the UN

March 23

World Meteorological Day, recognized by the UN and WHO

March 24

World Tuberculosis Day, recognized by the UN and WHO

March 24 

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

March 25 

International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade, recognized by the UN

March 25 

International Day of Solidarity with Detained and Missing Staff Members, recognized by the UN

March 27 

World Theatre Day

April 1 

April Fool's Day, recognized by most of the Western World (except most of Spain), Iran, Brazil and the island of Minorca (within Spain).

April 2 

World Autism Awareness Day, recognized by the UN

April 2 

International Children's Book Day

April 4 

International Day for Mine Awareness and Assistance in Mine Action, recognized by the UN

April 7 

Day of Remembrance of the Victims of the Rwanda Genocide, recognized by the UN

April 7 

World Health Day, recognized by the UN and WHO

April 8

International Romani Day

April 12 

International Day of Human Space Flight, recognized by the UN, also observed as "Yuri's Night" by space enthusiasts by Russia and the former USSR under the name of "Cosmonautics Day"

April 16 

World Entrepreneurship Day

April 17 

World Hemophilia Day

April 22 

International Mother Earth Day, recognized by the UN

April 23

World Book and Copyright Day, recognized by the UN and UNESCO

April 23 

English Language Day

April 24 

World Day for Laboratory Animals

April 25 

World Malaria Day, recognized by the UN and WHO

April 26 

World Intellectual Property Day, recognized by the UN and WIPO

April 28

World Day for Safety and Health at Work, recognized by the UN and ILO

April 29 

Day of Remembrance for all Victims of Chemical Warfare, recognized by the UN

April 29 

International Dance Day, recognized by UNESCO

April 30 

International Jazz Day, recognized by the UN

May 1

May Day, International Workers' Day

May 3

World Press Freedom Day, recognized by the UN

May 4 

International Firefighters' Day, Star Wars Day

May 5 

International Midwives Day, World Athletics Day

May 8

World Red Cross and Red Crescent Day

May 8–9

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

May 9 

Europe Day

May 10 

International Migratory Bird Day, North America

May 12 

International Nurses Day

May 15 

International Day of Families, recognized by the UN

May 17 

World Telecommunication and Information Society Day, recognized by the UN and ITU

May 17

World AIDS Vaccine Day

May 17 

International Day Against Homophobia and Transphobia

May 18 

International AIDS Candlelight Memorial

May 18 

International Museum Day

May 21 

World Day for Cultural Diversity for Dialogue and Development, recognized by the UN

May 22 

International Day for Biological Diversity, recognized by the UN

May 22 

World Goth Day

May 23 

World Turtle Day

May 25 

Geek Pride Day, Towel Day

May 29 

Pashto Day

May 29 

International Day of UN Peacekeepers, recognized by the UN

May 31

World No-Tobacco Day, recognized by the UN and WHO

First Tuesday of May

World Asthma Day

Second Saturday of May

World Fair Trade Day

Second Sunday of May

Mother's Day

Full moon in May 

Vesak

A weekend in May 

World Migratory Bird Day, recognized by the UN and UNEP

June 1

Global Day of Parents, recognized by the UN

June 1 

International Children's Day

June 4

International Day of Innocent Children Victims of Aggression, recognized by the UN

June 5

World Environment Day, recognized by the UN and UNEP

June 8 

World Oceans Day, recognized by the UN

June 12 

World Day Against Child Labour

June 14 

World Blood Donor Day, recognized by the UN and WHO

June 15 

World Elder Abuse Awareness Day, recognized by the UN

June 17 

World Day to Combat Desertification and Drought, recognized by the UN

June 18 

Autistic Pride Day

June 20 

World Refugee Day, recognized by the UN

June 21 

World Music Day, International Day of Yoga

June 23

United Nations Public Service Day, recognized by the UN

June 23 

International Widow's Day, recognized by the UN

June 24 

World Young Doctors' Day

June 25 

Day of the Seafarer, recognized by the UN and IMO

June 26

International Day against Drug Abuse and Illicit Trafficking, recognized by the UN

June 26

United Nations International Day in Support of Victims of Torture, recognized by the UN

3rd Sunday of June 

Fathers' Day in some countries

First Saturday in July 

International Day of Cooperatives, recognized by the UN

July 2 

World UFO Day

July 6 

World Zoonoses Day

July 6 

International Kissing Day

July 11 

World Population Day, recognized by the UN

July 12

Malala Yousafzai Day, recognized by the UN(July 14, 2014-Malala Yousafzai Day)

July 13 

Rock Worldwide Day

July 17 

World Day for International Justice

July 18 

Nelson Mandela International Day, recognized by the UN

July 28 

World Hepatitis Day, recognized by the UN and WHO

July 29 

International Tiger Day

July 30 

International Day of Friendship, recognized by the UN

First Friday of August 

International Beer Day

August 9 

International Day of the World's Indigenous People, recognized by the UN

August 12

International Youth Day, recognized by the UN

August 13 

International Lefthanders Day

August 17 

Smile and Wave to Tourists International Day

August 19 

World Humanitarian Day, recognized by the UN

August 21 

World Fashion Day

August 23 

International Day for the Remembrance of the Slave Trade and its Abolition, recognized by the UN and UNESCO

August 29 

International Day against Nuclear Tests, recognized by the UN

August 30

International Day of the Victims of Enforced Disappearances, recognized by the UN

September 5 

International Day of Charity

September 8 

International Literacy Day, recognized by the UN and UNESCO

September 8 

Physical Therapy, recognized by World Confederation of Physical Therapy

September 10 

World Suicide Prevention Day, recognized by the UN and WHO

September 12 

United Nations Day for South-South Cooperation, recognized by the UN

September 15 

International Day of Democracy, recognized by the UN

September 16

International Day for the Preservation of the Ozone Layer, recognized by the UN

September 18

World Water Monitoring Day

September 19

International Talk Like a Pirate Day

September 21 

International Day of Peace, recognized by the UN

September 26 

European Day of Languages

September 27

World Tourism Day, recognized by the UN and UNWTO

September 28 

World Rabies Day, recognized by the UN and WHO

September 28 

International Right to Know Day

September 29 

World Heart Day, recognized by the UN and WHO

September 29 

International Coffee Day

September 30 

Blasphemy Day

Last Thursday of September

World Maritime Day, recognized by the UN and IMO

October 1 

International Day of Older Persons, recognized by the UN

October 1 

World Vegetarian Day

October 1 

World Sake Day

October 2 

International Day of Non-Violence, recognized by the UN

October 2 

World Cerebral Palsy Day

October 4 

World Animal Day

October 5 

World Teachers' Day, recognized by the UN and UNESCO

October 9 

World Post Day, recognized by the UN

October 10 

World Mental Health Day, recognized by the UN and WHO

October 11 

International Day of the Girl Child, recognized by the UN

October 12 

World Arthritis Day

October 13 

International Day for Disaster Reduction, recognized by the UN

October 14 

World Standards Day

October 15 

International Day of Rural Women, recognized by the UN

October 15 

Global Hand washing Day

October 16 

World Food Day, recognized by the UN and FAO

October 16 

National Boss Day (Boss's Day)

October 17 

International Day for the Eradication of Poverty, recognized by the UN

October 18 

World Vasectomy Day

October 20 

World Osteoporosis Day

October 20

International Day of the Air Traffic Controller

October 20 

World Statistics Day

October 22 

International Stuttering Awareness Day

October 24 

World Tripe Day, recognized by the Tripe Marketing Board

October 24 

United Nations Day, recognized by the UN

October 24 

World Development Information Day, recognized by the UN

October 27 

World Day for Audiovisual Heritage, recognized by the UN and UNESCO

October 28 

International Animation Day

October 29 

World Stroke Day

First Monday in October 

World Habitat Day, recognized by the UN

Second Thursday in October, October 11 

World Sight Day, recognized by the UN and WHO

First Monday of October 

World Architecture Day

First Friday of October 

World Smile Day

Second Friday of October 

World Egg Day

Second Saturday of October 

International Migratory Bird Day, South America

November 6 

International Day for Preventing the Exploitation of the Environment in War and Armed Conflict, recognized by the UN and WHO

November 8 

International Day of Radiology

November 10 

World Science Day for Peace and the Development, recognized by the UN and UNESCO

November 12 

World Pneumonia Day, recognized by the UN and WHO

November 13 

World Kindness Day

November 14 

World Diabetes Day, recognized by the UN and WHO

November 15 

Day of the Imprisoned Writer

November 16 

International Day for Tolerance, recognized by the UN

November 16 

World Chronic Obstructive Pulmonary Disease Day, recognized by the UN and WHO (in 2013, celebrated on November 20)

November 17 

International Students Day

November 17 

World Prematurity Day

November 19 

International Journalist's remembrance Day, recognized by the journalist community of the world

November 19 

International Men's Day (Trinidad and Tobago, Jamaica, Australia, India, United States, Singapore, Malta, United Kingdom, South Africa, Hungary, Ireland, Ghana, Canada, Denmark, Austria, France, Pakistan, Antigua and Barbuda, St. Kitts and Nevis and Grenada)

November 20 

Universal Children's Day, recognized by the UN

November 20

Transgender Day of Remembrance

November 20 

Africa Industrialization Day, recognized by the UN

November 21 

World Television Day, recognized by the UN

November 21 

World Hello Day

November 25 

International Day for the Elimination of Violence against Women, recognized by the UN

November 29 

International Day of Solidarity with the Palestinian People, recognized by the UN

Third Thursday in November, November 15

World Philosophy Day, recognized by the UN and UNESCO

Third Sunday in November, November 17 

World Day of Remembrance for Road Traffic Victims, recognized by the UN and WHO

December 1 

World AIDS Day, recognized by the UN

December 2 

International Day for the Abolition of Slavery, recognized by the UN

December 3 

International Day of Persons with Disabilities, recognized by the UN

December 5 

International Volunteer Day for Economic and Social Development, recognized by the UN

December 7 

International Civil Aviation Day, recognized by the UN and ICAO

December 9 

International Anti-Corruption Day, recognized by the UN

December 10 

Human Rights Day, recognized by the UN

December 10 

International Animal Rights Day, founded in 1998 by Uncaged Campaigns

December 11 

International Mountain Day, recognized by the UN

December 12

The International Day Of Heavy Metal, a celebration of Heavy Metal & Hard Rock Music

December 18 

International Migrants Day, recognized by the UN

December 20 

International Human Solidarity Day, recognized by the UN

December 25 

Christmas Day, recognized by the Christian and Western World