United Nations International Days Calendar Of 2021

The following is an overview of the days and the corresponding celebration declared by the United Nations that apply to 2021:

The week starts on:

United Nations January 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 53	28Monday	29Tuesday	30Wednesday	31Thursday	1Friday New Year’s Day ^[headq]	2Saturday	3Sunday
Week 1	4Monday	5Tuesday	6Wednesday	7Thursday Orthodox Christmas ^[floating]	8Friday	9Saturday	10Sunday
Week 2	11Monday	12Tuesday	13Wednesday	14Thursday	15Friday	16Saturday	17Sunday
Week 3	18Monday	19Tuesday	20Wednesday	21Thursday	22Friday	23Saturday	24Sunday
Week 4	25Monday	26Tuesday	27Wednesday International Day of Commemoration in Memory of the Victims of the Holocaust	28Thursday	29Friday	30Saturday	31Sunday
	1Monday	2Tuesday	3Wednesday	4Thursday	5Friday	6Saturday	7Sunday
	8Monday	9Tuesday	10Wednesday	11Thursday	12Friday	13Saturday	14Sunday

United Nations February 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 5	1Monday World Interfaith Harmony Week - Day 1	2Tuesday World Interfaith Harmony Week - Day 2 World Wetlands Day	3Wednesday World Interfaith Harmony Week - Day 3	4Thursday World Cancer Day ^[WHO] World Interfaith Harmony Week - Day 4	5Friday World Interfaith Harmony Week - Day 5	6Saturday International Day of Zero Tolerance to Female Genital Mutilation ^[WHO] International Day of Zero Tolerance for Female Genital Mutilation World Interfaith Harmony Week - Day 6	7Sunday World Interfaith Harmony Week - Day 7
Week 6	8Monday	9Tuesday	10Wednesday	11Thursday International Day of Women and Girls in Science	12Friday	13Saturday World Radio Day ^[UNESCO]	14Sunday
Week 7	15Monday Presidents’ Day ^[floating]	16Tuesday	17Wednesday	18Thursday	19Friday	20Saturday World Day of Social Justice	21Sunday International Mother Language Day ^[UNESCO]
Week 8	22Monday	23Tuesday	24Wednesday	25Thursday	26Friday	27Saturday	28Sunday
	1Monday	2Tuesday	3Wednesday	4Thursday	5Friday	6Saturday	7Sunday
	8Monday	9Tuesday	10Wednesday	11Thursday	12Friday	13Saturday	14Sunday
	15Monday	16Tuesday	17Wednesday	18Thursday	19Friday	20Saturday	21Sunday

United Nations March 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 9	1Monday Zero Discrimination Day ^[UNAIDS]	2Tuesday	3Wednesday World Wildlife Day	4Thursday	5Friday	6Saturday	7Sunday
Week 10	8Monday International Women's Day	9Tuesday	10Wednesday	11Thursday	12Friday	13Saturday	14Sunday
Week 11	15Monday	16Tuesday	17Wednesday	18Thursday	19Friday	20Saturday International Day of Happiness United Nations French Language Day	21Sunday International Day for the Elimination of Racial Discrimination World Poetry Day ^[UNESCO] International Day of Nowruz World Down Syndrome Day International Day of Forests Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 1
Week 12	22Monday World Water Day Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 2	23Tuesday World Meteorological Day ^[WMO] Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 3	24Wednesday World Tuberculosis Day ^[WHO] International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 4	25Thursday International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade International Day of Solidarity with Detained and Missing Staff Members Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 5	26Friday Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 6	27Saturday Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 7	28Sunday
Week 13	29Monday	30Tuesday	31Wednesday	1Thursday	2Friday	3Saturday	4Sunday
	5Monday	6Tuesday	7Wednesday	8Thursday	9Friday	10Saturday	11Sunday
	12Monday	13Tuesday	14Wednesday	15Thursday	16Friday	17Saturday	18Sunday

United Nations April 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 13	29Monday	30Tuesday	31Wednesday	1Thursday	2Friday World Autism Awareness Day Good Friday ^[headq]	3Saturday	4Sunday International Day for Mine Awareness and Assistance in Mine Action
Week 14	5Monday	6Tuesday International Day of Sport for Development and Peace	7Wednesday Day of Remembrance of the Victims of the Rwanda Genocide World Health Day ^[WHO]	8Thursday	9Friday	10Saturday	11Sunday
Week 15	12Monday International Day of Human Space Flight	13Tuesday	14Wednesday	15Thursday	16Friday	17Saturday	18Sunday
Week 16	19Monday	20Tuesday United Nations Chinese Language Day	21Wednesday	22Thursday International Mother Earth Day	23Friday World Book and Copyright Day ^[UNESCO] United Nations English Language Day	24Saturday World Immunization Week - Day 1 ^[WHO]	25Sunday World Malaria Day ^[WHO] World Immunization Week - Day 2 ^[WHO]
Week 17	26Monday World Intellectual Property Day ^[WIPO] World Immunization Week - Day 3 ^[WHO] International Chernobyl Disaster Remembrance Day	27Tuesday World Immunization Week - Day 4 ^[WHO]	28Wednesday World Day for Safety and Health at Work ^[ILO] World Immunization Week - Day 5 ^[WHO]	29Thursday Day of Remembrance for all Victims of Chemical Warfare World Immunization Week - Day 6 ^[WHO]	30Friday International Jazz Day ^[UNESCO] World Immunization Week - Day 7 ^[WHO] Orthodox Good Friday ^[floating]	1Saturday	2Sunday
	3Monday	4Tuesday	5Wednesday	6Thursday	7Friday	8Saturday	9Sunday
	10Monday	11Tuesday	12Wednesday	13Thursday	14Friday	15Saturday	16Sunday

United Nations May 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 17	26Monday	27Tuesday	28Wednesday	29Thursday	30Friday	1Saturday	2Sunday World Tuna Day
Week 18	3Monday World Press Freedom Day ^[UNESCO]	4Tuesday	5Wednesday International Midwives' Day	6Thursday	7Friday	8Saturday Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War World Migratory Bird Day - Day 1 ^[UNEP]	9Sunday Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War World Migratory Bird Day - Day 2 ^[UNEP]
Week 19	10Monday	11Tuesday	12Wednesday	13Thursday Eid al-Fitr ^[headq]	14Friday	15Saturday International Day of Families	16Sunday
Week 20	17Monday World Telecommunication and Information Society Day ^[ITU]	18Tuesday	19Wednesday	20Thursday	21Friday World Day for Cultural Diversity for Dialogue and Development ^[UNESCO]	22Saturday International Day for Biological Diversity	23Sunday International Day to End Obstetric Fistula
Week 21	24Monday	25Tuesday Africa Day Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 1	26Wednesday Day of Vesak ^[floating] Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 2	27Thursday Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 3	28Friday Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 4	29Saturday International Day of United Nations Peacekeepers Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 5	30Sunday Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 6
Week 22	31Monday World No-Tobacco Day ^[WHO] Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 7 Memorial Day ^[headq]	1Tuesday	2Wednesday	3Thursday	4Friday	5Saturday	6Sunday
	7Monday	8Tuesday	9Wednesday	10Thursday	11Friday	12Saturday	13Sunday

United Nations June 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 22	31Monday	1Tuesday Global Day of Parents	2Wednesday	3Thursday	4Friday International Day of Innocent Children Victims of Aggression	5Saturday World Environment Day ^[UNEP]	6Sunday United Nations Russian Language Day
Week 23	7Monday	8Tuesday World Oceans Day	9Wednesday	10Thursday	11Friday	12Saturday World Day Against Child Labour ^[ILO]	13Sunday International Albinism Awareness Day
Week 24	14Monday World Blood Donor Day ^[WHO]	15Tuesday	16Wednesday International Day of Solidarity with the Struggling People of South Africa International Day of Family Remittances	17Thursday World Day to Combat Desertification and Drought	18Friday	19Saturday International Day for the Elimination of Sexual Violence in Conflict	20Sunday World Refugee Day
Week 25	21Monday International Day of Yoga	22Tuesday	23Wednesday United Nations Public Service Day International Widow's Day	24Thursday	25Friday Day of the Seafarer ^[IMO]	26Saturday International Day against Drug Abuse and Illicit Trafficking United Nations International Day in Support of Victims of Torture	27Sunday
Week 26	28Monday	29Tuesday	30Wednesday International Day of Friendship ^[FAO] International Asteroid Day	1Thursday	2Friday	3Saturday	4Sunday
	5Monday	6Tuesday	7Wednesday	8Thursday	9Friday	10Saturday	11Sunday
	12Monday	13Tuesday	14Wednesday	15Thursday	16Friday	17Saturday	18Sunday

United Nations July 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 26	28Monday	29Tuesday	30Wednesday	1Thursday	2Friday	3Saturday International Day of Cooperatives	4Sunday Independence Day ^[headq]
Week 27	5Monday	6Tuesday	7Wednesday	8Thursday	9Friday	10Saturday	11Sunday World Population Day
Week 28	12Monday	13Tuesday	14Wednesday	15Thursday World Youth Skills Day	16Friday	17Saturday	18Sunday Nelson Mandela International Day
Week 29	19Monday	20Tuesday Eid al-Adha ^[headq]	21Wednesday	22Thursday	23Friday	24Saturday	25Sunday
Week 30	26Monday	27Tuesday	28Wednesday World Hepatitis Day ^[WHO]	29Thursday	30Friday International Day of Friendship World Day against Trafficking in Persons	31Saturday	1Sunday
	2Monday	3Tuesday	4Wednesday	5Thursday	6Friday	7Saturday	8Sunday
	9Monday	10Tuesday	11Wednesday	12Thursday	13Friday	14Saturday	15Sunday

United Nations August 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 30	26Monday	27Tuesday	28Wednesday	29Thursday	30Friday	31Saturday	1Sunday World Breastfeeding Week - Day 1 ^[WHO]
Week 31	2Monday World Breastfeeding Week - Day 2 ^[WHO]	3Tuesday World Breastfeeding Week - Day 3 ^[WHO]	4Wednesday World Breastfeeding Week - Day 4 ^[WHO]	5Thursday World Breastfeeding Week - Day 5 ^[WHO]	6Friday World Breastfeeding Week - Day 6 ^[WHO]	7Saturday World Breastfeeding Week - Day 7 ^[WHO]	8Sunday
Week 32	9Monday International Day of the World's Indigenous People International Day of Solidarity with the Struggle of Women in South Africa and Namibia	10Tuesday	11Wednesday	12Thursday International Youth Day	13Friday	14Saturday	15Sunday
Week 33	16Monday	17Tuesday	18Wednesday	19Thursday World Humanitarian Day	20Friday	21Saturday	22Sunday
Week 34	23Monday International Day for the Remembrance of the Slave Trade and Its Abolition ^[UNESCO]	24Tuesday	25Wednesday	26Thursday	27Friday	28Saturday	29Sunday International Day against Nuclear Tests
Week 35	30Monday International Day of the Victims of Enforced Disappearances	31Tuesday	1Wednesday	2Thursday	3Friday	4Saturday	5Sunday
	6Monday	7Tuesday	8Wednesday	9Thursday	10Friday	11Saturday	12Sunday

United Nations September 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 35	30Monday	31Tuesday	1Wednesday	2Thursday	3Friday	4Saturday	5Sunday International Day of Charity
Week 36	6Monday Labour Day ^[headq]	7Tuesday	8Wednesday International Literacy Day ^[UNESCO]	9Thursday	10Friday World Suicide Prevention Day ^[WHO]	11Saturday	12Sunday United Nations Day for South-South Cooperation
Week 37	13Monday	14Tuesday	15Wednesday International Day of Democracy	16Thursday International Day for the Preservation of the Ozone Layer Yom Kippur ^[floating]	17Friday	18Saturday	19Sunday
Week 38	20Monday	21Tuesday International Day of Peace	22Wednesday	23Thursday	24Friday	25Saturday	26Sunday International Day for the Total Elimination of Nuclear Weapons
Week 39	27Monday World Tourism Day ^[UNWTO]	28Tuesday World Rabies Day ^[WHOSPN]	29Wednesday World Heart Day ^[WHOSPN]	30Thursday World Maritime Day ^[IMO]	1Friday	2Saturday	3Sunday
	4Monday	5Tuesday	6Wednesday	7Thursday	8Friday	9Saturday	10Sunday
	11Monday	12Tuesday	13Wednesday	14Thursday	15Friday	16Saturday	17Sunday

United Nations October 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 39	27Monday	28Tuesday	29Wednesday	30Thursday	1Friday International Day of Older Persons	2Saturday International Day of Non-Violence	3Sunday
Week 40	4Monday World Habitat Day World Space Week - Day 1	5Tuesday World Teachers Day ^[UNESCO]^[ILO] World Space Week - Day 2	6Wednesday World Space Week - Day 3 International Walk to School Day	7Thursday World Space Week - Day 4	8Friday World Space Week - Day 5	9Saturday World Post Day ^[UPU] World Space Week - Day 6	10Sunday World Mental Health Day ^[WHO] World Space Week - Day 7
Week 41	11Monday International Day of the Girl Child	12Tuesday United Nations Spanish Language Day	13Wednesday International Day for Disaster Reduction	14Thursday World Sight Day ^[WHOSPN]	15Friday International Day of Rural Women	16Saturday World Food Day ^[FAO]	17Sunday International Day for the Eradication of Poverty
Week 42	18Monday	19Tuesday	20Wednesday	21Thursday	22Friday	23Saturday	24Sunday United Nations Day World Development Information Day Disarmament Week - Day 1
Week 43	25Monday Disarmament Week - Day 2	26Tuesday Disarmament Week - Day 3	27Wednesday World Day for Audiovisual Heritage ^[UNESCO] Disarmament Week - Day 4	28Thursday Disarmament Week - Day 5	29Friday Disarmament Week - Day 6	30Saturday Disarmament Week - Day 7	31Sunday World Cities Day
	1Monday	2Tuesday	3Wednesday	4Thursday	5Friday	6Saturday	7Sunday
	8Monday	9Tuesday	10Wednesday	11Thursday	12Friday	13Saturday	14Sunday

United Nations November 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 44	1Monday	2Tuesday International Day to End Impunity for Crimes against Journalists	3Wednesday	4Thursday	5Friday World Tsunami Awareness Day	6Saturday International Day for Preventing the Exploitation of the Environment in War and Armed Conflict	7Sunday International Week of Science and Peace - Day 1
Week 45	8Monday International Week of Science and Peace - Day 2	9Tuesday International Week of Science and Peace - Day 3	10Wednesday World Science Day for Peace and Development ^[UNESCO] International Week of Science and Peace - Day 4	11Thursday International Week of Science and Peace - Day 5	12Friday World Pneumonia Day ^[WHOSPN] International Week of Science and Peace - Day 6	13Saturday International Week of Science and Peace - Day 7	14Sunday World Diabetes Day ^[WHO]
Week 46	15Monday	16Tuesday International Day for Tolerance	17Wednesday World Chronic Obstructive Pulmonary Disease Day ^[WHO]	18Thursday World Philosophy Day ^[UNESCO]	19Friday World Toilet Day ^[UNICEF] Gurpurab ^[floating]	20Saturday Africa Industrialization Day Universal Children's Day	21Sunday World Day of Remembrance for Road Traffic Victims ^[WHO] World Television Day
Week 47	22Monday	23Tuesday	24Wednesday	25Thursday International Day for the Elimination of Violence against Women Thanksgiving Day ^[headq]	26Friday	27Saturday	28Sunday
Week 48	29Monday International Day of Solidarity with the Palestinian People	30Tuesday	1Wednesday	2Thursday	3Friday	4Saturday	5Sunday
	6Monday	7Tuesday	8Wednesday	9Thursday	10Friday	11Saturday	12Sunday
	13Monday	14Tuesday	15Wednesday	16Thursday	17Friday	18Saturday	19Sunday

United Nations December 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 48	29Monday	30Tuesday	1Wednesday World AIDS Day	2Thursday International Day for the Abolition of Slavery	3Friday International Day of Persons with Disabilities	4Saturday	5Sunday International Volunteer Day for Economic and Social Development World Soil Day ^[FAO]
Week 49	6Monday	7Tuesday International Civil Aviation Day ^[ICAO]	8Wednesday	9Thursday International Anti-Corruption Day International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime	10Friday Human Rights Day	11Saturday International Mountain Day	12Sunday
Week 50	13Monday	14Tuesday	15Wednesday	16Thursday	17Friday	18Saturday International Migrants Day United Nations Arabic Language Day	19Sunday
Week 51	20Monday International Human Solidarity Day	21Tuesday	22Wednesday	23Thursday	24Friday	25Saturday Christmas Day ^[headq]	26Sunday
Week 52	27Monday	28Tuesday	29Wednesday	30Thursday	31Friday	1Saturday	2Sunday
	3Monday	4Tuesday	5Wednesday	6Thursday	7Friday	8Saturday	9Sunday
	10Monday	11Tuesday	12Wednesday	13Thursday	14Friday	15Saturday	16Sunday

Notes:

^[headq] This is an official holiday at the United Nations Headquarters.

^[floating] A 'floating' holiday. An employee at the United Nations may or may not choose to take this day as a holiday. Starting in 2016, the United Nations staff will no longer have 10 official holidays. There will be nine official holidays and each employee will be able to choose one of seven floating holidays as a 10th holiday.

^[WHO] Day observed by the World Health Organization.

^[UNESCO] Day observed by the United Nations Educational, Scientific and Cultural Organization.

^[UNAIDS] Day observed by the Joint United Nations Programme on HIV/AIDS.

^[WMO] Day observed by the World Meteorological Organization.

^[WIPO] Day observed by the World Intellectual Property Organization.

^[ILO] Day observed by the International Labour Organization.

^[UNEP] Day observed by the United Nations Environment Programme.

^[ITU] Day observed by the International Telecommunication Union.

^[IMO] Day observed by the International Maritime Organization.

^[FAO] Day observed by the Food and Agriculture Organization.

^[UNWTO] Day observed by the United Nations World Tourism Organization.

^[WHOSPN] This is not part of the official public campaigns of the World Health Organization.