International Days
ANU
4 = World Braille Day
24 = International Day of Education
27 = International Day of Commemoration in Memory of the Victims of the Holocaust
BEO
9 = International Day of Zero Tolerance to Female Genetal Mutation
13 = World Pulses Day
14 = International Day of Women and Girls in Science
16 = World Radio Day
23 = World Day of Social Justice
24 = International Mother Language Day
CIP
3 = Zero Discrimination Day
5 = World Wildlife Day
10 = International Women's Day
16 = World Pi Day Albert Einstein Birthday
17 = World Consumer Rights Day
20 = First Space Walk (1965)
22 = International Sparrow Day / International Day of Happiness / French Language Day
23 = International Day for Forests
International day for the Elimination of Racial Discrimination
World Poetry Day
International Day for Nowruz
World Down Syndrome Day
24 = World Water Day
25 = World Weather Day
World Meterological Day
26 = World Tuberclosis Day / International Day for the Right to the Truth Concerning Gross Human Rights Violations and for the Dignity of Victims
27 = International Day Remembrance of the Victims of Slavery and the Transatlandic Slave Trade.
International Day of Solidarity with detained and missing staff members
28 = Bangladesh Independence Day
DEQ
1 = World Theatre Day
7 = World Autism Awareness Day
9 = International Day for Mine Awareness and Assistance in Mine Action
10 = International Day of Conscience
11 = International Day of Sports for Development and Peace
12 = International Day of the Reflection on the 1994 Genocide against the Tutsi in Rwanda
World Health Day
17 = International Day of Human Space Flight
19 = World Chagas Disease Day
25 = Chinese Language Day
26 = World Creativity and Innovation Day
27 = International Mother Earth Day
28 = World Book and Copyright Day, Language Day for English and Spanish
ERO
1 = International Day for Multilateral and Diplomacy for Peace
2 = International Delegates Day / World Malaria Day
3 = International Chernobyl Disaster Remembrance Day / World Intellectual Property Day
5 = World Day for Safety and Health at Work
7 = International Jazz Day
9 = World Tuna Day
10 = World Press Freedom Day
15-16 = Time of Remembrance and Reconciliation for Those Who lost Their lives During the Second World War
22 = International Day of Families
23 = International Day of Living Together for Peace / International Day of Light
24 = World Telecommunication and Information Society Day
27 = World Bee Day
28 = International Tea Day / World Day for Cultural Diversity for Dialogue and Development
FIS
1 = International Day for Biological Diversity
2 = International Day to End Obstetric Fistula
8 = International Day of UN Peacekeepers
10 = World No Tobacco Day
11 = Global Day of Parents
13 = World Bicycle Day
14 = International Day of Innocent Children Victims of Aggression
15 = World Environment Day / International Day for the Fight against Illegal Unreported and Unregulated Fishing
16 = Russian Language Day
17 = World Food Safety Day
18 = World Ocean Day
22 = World Day against Child Labour
23 = International Albinism Awareness Day
24 = World Blood Donor Day
25 = World Elder Abuse Awareness Day
26 = International Day of Family Remittances
27 = World Day of Combat Desertification and Drought
28 = Sustainable Gastronomy Day
GAT
1 = International Day for the Elimination of Sexual Violence in Conflict
2 = World Refugee Day
3 = International Day of Yoga / International Day of the Celebrations of Summer Solstice
5 = UN Public Service Day / International Widows Day
7 = Day of the Seafarer
8 = International Day against Drug Abuse and Illicit Trafficking / UN International Day in support of Victims of Torture
9 = Micro Small Medium Size Enterprises Day (MSME)
11 = International Day of the Tropics
12 = International Asteroid Day / International Day of Parliamentarism
23 = World Population Day
27 = World Youth Skills Day
HUP
2 = Nelson Mandela International Day
4 = World Chess Day
12 = World Hepatitis Day
14 = International Day of Friendship / World Day Against Trafficking in Persons
24 = International Day for The World Indigenous People
27 = International Youth Day
IVO
6 = World Humanitarian Day
8 = International Day of Remembrance and Tribute to the Victims of Terrorism
9 = International Day of Commemorating the Victims of Acts of Violence Based on Religion or Belief
10 = International Day for the Remembrance of the Slave Trade and Its Abolition
16 = International Day of the Nuclear Tests
17 = International Day of the Victims of Enforced Disappearances
23 = International Day of The Charity
25 = International Day of the Clean Air for Blue Skies
26 = International Literacy Day
JOW
2 = UN Day for South-South Cooperation
5 = International Day for Democracy
6 = International Day for the Preservation of Ozone Layer
7 = World Patient Safety Day
8 = International Equal Pay Day
11 = International Day of the Peace
13 = International Day of Sign Language
16 = International Day for Total Elimination of Nuclear Weapons
17 = World Tourism Day
18 = International Day for Universal Access to Information
19 = International Day of Awareness of Food Loss and Waste
20 = International Translation Day
21 = International Day of Older Persons
22 = International Day of Non Violence
25 = World Teachers Day
KIX
1 = World Post Day
2 = World Mental Health Day
3 = International Day of The Girl Child
5 = International Day for Disaster Risk Reduction
7 = International Day for Rural Women
8 = World Food Day
9 = International Day for the Eradication of Poverty
12 = World Statistics Day (Every Five Years)
16 = United Nations Day / World Development Information Day
19 = World Day for Audiovisual Heritage
23 = World Cities Day
25 = International Day to End Impunity for Crimes against Journalists
28 = World Tsunami Awareness Day
LAY
1 = International Day for Preventing the Exploitation of the Environment in War and Armed Conflicts
5 = World Science Day for Peace and Development
9 = World Diabetes Day
11 = International Day for Tolerance
14 = World Toilet Day / World Philosophy Day
15 = Africa Industrialization Day / World Children's Day
16 = World TV Day
20 = International Day for the Elimination of Violence against Women
24 = International Day of Solidarity with the Palestinian People
25 = International Day of Remembrance for all Victims of Chemical Warfare
26 = World AIDS Day
27 = International Day for the Abolition of Slavery
28 = International Day of Persons with Disabilities
MEZ
1 = International Day of Banks
2 = International Volunteer Day for Social ad Economic Development / World Soil Day
4 = International Civil Aviation Day
6 = International Day of Commemoration and Dignity of the Victims / International Anti Corruption Day
7 = Human Rights Day
8 = International Mountains Day
9 = International Day of Neutrality / International Universal Health Coverage Day
15 = International Migrants Day / Arabic Language Day
17 = International Human Solidarity Day
22 = Christmas
Courtesy: https://www.un.org/en/sections/observances/international-days/