LIST OF WORLD INTERNATIONAL DAYS

These are the international days currently observed by the United Nations. The United Nations designates specific days, weeks, years and decades as occasions to mark particular events or topics in order to promote, through awareness and action, the objectives of the Organization. Usually, it is one or more Member States that propose these observances and the General Assembly establishes them with a resolution. On occasion, these celebrations are declared by the specialized agencies of the United Nations, such as UNESCO, UNICEF, FAO, etc., when they concern issues that fall within the scope of their competencies.  Some of them may be later adopted by the General Assembly. 

Day	Name
January 4	World Braille Day
January 11	International Parity at Work Day
January 27	International Holocaust Remembrance Day
January 28	Data Protection Day
January 31	Street Children's Day
Last Sunday of January	Leprosy Prevention Day
February 1	World Hijab Day
February 1	World Aspergillosis Day
February 2	World Wetlands Day
February 4	World Cancer Day
February 6	International Day of Zero Tolerance to Female Genital Mutilation
February 11	World Day of the Sick
February 13	World Radio Day
February 14	World Valentine Day
February 14	World Cholangiocarcinoma Day
February 14	Congenital Heart Defect Awareness Day
February 20	World Day of Social Justice
February 21	International Mother Language Day
February 27	World NGO Day
March 1	World Civil Defence Day Self Harm Awareness day International wheelchair day
March 3	World Wildlife Day
March 8	International Women's Day
March 12	World Glaucoma Day
March 15	World Consumer Rights Day World Contact Day
March 20	World Oral Health Day
March 20	International Day of Francophonie
March 20	International Day of Happiness
March 20	World Sparrow Day
March 21	International Day for the Elimination of Racial Discrimination
March 21	World Poetry Day
March 21	International Day of Nowruz
March 21	World Down Syndrome Day
March 21	World Puppetry Day
March 21	International Day of Forests
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	Observance of National Genocide Day
March 26	International Purple day
March 27	International launch of Global Money Week world atmosphere Day
March 27	World Theatre Day
April 1	World April Fools' Day
April 2	World Autism Awareness Day
April 2	International Children's Book Day
April 7	Day of Remembrance of the Victims of the Rwanda Genocide
April 7	World Health Day
April 8	International Romani Day
April 17	World Hemophilia Day
April 18	International Day For Monuments and Sites
April 20	international day for cannabis-related protests and events
April 22	International Mother Earth Day
April 23	World Book and Copyright's Day
April 23	English Language Day
April 24	World Day for Laboratory Animals
April 25	World Malaria Day
April 28	World Day for Safety and Health at Work
April 29	Day of Remembrance for all Victims of Chemical Warfare
April 29	International Dance Day
April 30	International Jazz Day
May 1	May Day, International Workers' Day
May 3	World Press Freedom Day
May 4	International Firefighters' Day, Star Wars Day
May 5	International Midwives 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
May 9	Europe Day
May 10	International Migratory Bird Day
May 12	International Nurses Day
May 15	International Day of Families
May 17	World Telecommunication and Information Society Day
May 17	International Day Against Homophobia and Transphobia
May 18	World AIDS Vaccine Day
May 18	International AIDS Candlelight Memorial
May 18	International Museum Day
May 20	World Metrology Day
May 21	World Day for Cultural Diversity for Dialogue and Development
May 22	International Day for Biological Diversity
May 25	Geek Pride Day, Towel Day
May 29	International Day of UN Peacekeepers
May 31	World No-Tobacco Day
1st Tue in May	World Asthma Day
1st Sunday in May	World Laughter Day
2nd Sat in May	World Fair Trade Day
2nd Sun in May	Mother's Day
Full moon in May	Vesak
A weekend in May	World Migratory Bird Day
June 1	Global Day of Parents
June 1	International Children's Day
June 1	World Milk Day
June 4	International Day of Innocent Children Victims of Aggression
June 5	World Environment Day
June 6	World Pest Day
June 8	World Oceans Day
June 9	World Accreditation Day
June 12	International Shia Day
June 12	World Day Against Child Labour
June 14	World Blood Donor Day
June 15	Global Wind Day
June 15	World Elder Abuse Awareness Day
June 16	International Day of the African Child
June 17	World Day to Combat Desertification and Drought
June 18	Autistic Pride Day
June 20	World Refugee Day
June 21	World Music Day, International Day of Yoga
June 23	World Whistleblowers Day
June 23	International Widow's Day
June 25	World Vitiligo Day
June 26	International Day against Drug Abuse and Illicit Trafficking
June 26	United Nations International Day in Support of Victims of Torture
June 30	United Nations International Asteroid Day raises public awareness of the asteroid impact hazard
3rd Sun in Jun	Fathers' Day in some countries
1st Saturday in July	International Day of Cooperatives
July 7	World Chocolate Day
July 11	World Population Day
July 12	Malala Day
July 15	World Youth Skills Day
July 17	World Day for International Justice
July 18	Nelson Mandela International Day
July 26	International Day for the Conservation of the Mangrove Ecosystem
July 28	World Hepatitis Day
July 29	International Tiger Day
July 30	International Day of Friendship
July 30	World Day against Trafficking in Persons
1st Friday in August	International Beer Day
August 9	International Day of the World's Indigenous People
August 12	International Youth Day
August 13	International Lefthanders Day
August 19	World Humanitarian Day
August 23	International Day for the Remembrance of the Slave Trade and its Abolition
August 29	International Day against Nuclear Tests
August 30	International Day of the Disappeared
September 5	International Day of Charity
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 18	World Water Monitoring Day
September 21	International Day of Peace
September 23	Celebrate Bisexuality Day
September 23	International Day of Sign Languages
September 26	European Day of Languages
September 26	International Day for the Total Elimination of Nuclear Weapons
September 27	World Tourism Day
September 28	World Rabies Day
September 28	International Right to Know Day
September 28	International Safe Abortion Day
September 29	World Heart Day
September 29	International Coffee Day
September 30	Blasphemy Day
September 30	International Translation Day
October 1	International Day of Older Persons
October 1	World Vegetarian Day
October 2	International Day of Non-Violence
October 2	World Cerebral Palsy Day
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 11	World Obesity Day
October 13	World Thrombosis Day
October 13	International Day for Disaster Reduction
October 14	World Standards Day
October 15	Global Handwashing Day
October 15	White Cane Safety Day
October 16	National Boss Day (Boss's Day), World Food Day
October 16	World Anaesthesia Day
October 17	International Day for the Eradication of Poverty
October 18	World Vasectomy Day
October 20	World Osteoporosis Day
October 20	World Statistics Day
October 22	International Stuttering Awareness Day
October 24	United Nations Day
October 24	World Development Information Day
October 26	Intersex Awareness Day
October 27	World Day for Audiovisual Heritage
October 28	International Animation Day
October 29	World Stroke Day
1st Mon in Oct	World Habitat Day
day in 1st week in Oct	World Ballet Day
2nd Thu in Oct	World Sight Day
1st Fri in Oct	World Smile Day
2nd Sat in Oct	International Migratory Bird Day
November 1	World Vegan Day
November 2	International Day to End Impunity for Crimes Against Journalists
November 6	International Day for Preventing the Exploitation of the Environment in War and Armed Conflict
November 8	International Day of Radiology
November 10	World Science Day for Peace and Development
November 12	World Pneumonia Day
November 13	World Kindness Day
November 14	World Diabetes Day
November 14	Children's Day
November 15	Day of the Imprisoned Writer
November 16	International Day for Tolerance
November 17	International Students Day
November 17	World Prematurity Day
November 19	International Journalist's Remembrance Day
November 19	World Toilet Day
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
November 20	Transgender Day of Remembrance
November 20	Africa Industrialization Day
November 21	World Television Day
November 21	World Hello Day
November 25	International Day for the Elimination of Violence against Women
November 26	Anti Obesity Day
November 29	International Day of Solidarity with the Palestinian People
3rd Thu in Nov	World Philosophy Day
3rd Sun in Nov	World Day of Remembrance for Road Traffic Victims
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 for Economic and Social Development
December 7	International Civil Aviation Day
December 9	International Anti-Corruption Day
December 10	Human Rights Day
December 11	International Mountain Day
December 16	Victory day of Bangladesh
December 18	International Migrants Day
December 20	International Human Solidarity Day

 

Source: https://en.wikipedia.org/wiki/List_of_awareness_days