International Observance Days:

• 04 January – World Braille Day
• 24 January – International Day of Education
• 04 February – World Cancer Day
• 11 February – International Day of Women and Girls in Science
• 20 February – World Day of Social Justice
• 01 March – Zero Discrimination Day [UNAIDS]
• 08 March – International Women’s Day
• 12 March – World Glaucoma Day
• 20 March – International Day of Happiness
• 21 March – International Day for the Elimination of Racial Discrimination
• 21 March – World Down Syndrome Day
• 24 March – World Tuberculosis Day
• 02 April – World Autism Awareness Day
• 06 April – International Day of Sport for Development and Peace
• 07 April – World Health Day [WHO]
• 23 April – World Book and Copyright Day
• 25 April – World Malaria Day [WHO]
• 26 April – World Intellectual Property Day [WIPO]
• 28 April – World Day for Safety and Health at Work
• 15 May – International Day of Families
• 16 May – International Day of Living Together in Peace
• 31 May – World No-Tobacco Day [WHO]
• 01 June – Global Day of Parents
• 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
• 19 June – International Day for the Elimination of Sexual Violence in Conflict
• 21 June – International Day of Yoga
• 26 June – International Day against Drug Abuse and Illicit Trafficking
• 11 July – World Population Day
• 15 July – World Youth Skills Day
• 28 July – World Hepatitis Day [WHO]
• 30 July – International Day of Friendship
• 30 July – World Day against Trafficking in Persons
• 09 August – International Day of the World’s Indigenous Peoples
• 12 August – International Youth Day
• 19 August – World Humanitarian Day
• 05 September – International Day of Charity
• 08 September – International Literacy Day
• 10 September – World Suicide Prevention Day [WHO]
• 21 September – International Day of Peace
• 23 September – International Day of Sign Languages
• 28 September – International Day for Universal Access to Information
• 28 September – World Rabies Day [WHO]
• 30 September – International Translation Day
• 01 October – International Day of Older Persons
• 01 October (first Monday in October) – World Habitat Day
• 05 October – World Teachers’ Day
• 10 October – World Mental Health Day [WHO]
• 10 October (second Thursday of October) – World Sight Day 2018
• 11 October – International Day of the Girl Child
• 13 October – International Day for Disaster Reduction
• 15 October – International Day of Rural Women
• 15 October – White Cane Safety Day is a national observance in the United States
• 16 October – World Food Day
• 17 October – International Day for the Eradication of Poverty
• 24 October – United Nations Day
• 14 November – World Diabetes Day
• 18 November (third Sunday in November) – World Day of Remembrance for Road Traffic Victims
• 19 November – World Toilet Day
• 20 November – Universal Children’s Day
• 25 November – International Day for the Elimination of Violence against Women
• 30 November – Day of Remembrance for all Victims of Chemical Warfare
• 01 December – World AIDS Day
• 02 December – International Day for the Abolition of Slavery
• 03 December – International Day of Persons with Disabilities
• 10 December – Human Rights Day
• 12 December – International Universal Health Coverage Day
• 18 December – International Migrants Day
• 20 December – International Human Solidarity Day