United Nations International Days Calendar Of 2025

The following is an overview of the days and the corresponding celebration declared by the United Nations that apply to 2025:

The week starts on:

United Nations January 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 1	30 Monday	31 Tuesday	1Wednesday New Year’s Day ^[headq]	2Thursday	3Friday	4Saturday	5Sunday
Week 2	6Monday	7Tuesday Orthodox Christmas ^[floating]	8Wednesday	9Thursday	10Friday	11Saturday	12Sunday
Week 3	13Monday	14Tuesday	15Wednesday	16Thursday	17Friday	18Saturday	19Sunday
Week 4	20Monday	21Tuesday	22Wednesday	23Thursday	24Friday	25Saturday	26Sunday
Week 5	27Monday International Day of Commemoration in Memory of the Victims of the Holocaust	28Tuesday	29Wednesday	30Thursday	31Friday	1 Saturday	2 Sunday
	3 Monday	4 Tuesday	5 Wednesday	6 Thursday	7 Friday	8 Saturday	9 Sunday
	10 Monday	11 Tuesday	12 Wednesday	13 Thursday	14 Friday	15 Saturday	16 Sunday

United Nations February 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 5	27 Monday	28 Tuesday	29 Wednesday	30 Thursday	31 Friday	1Saturday World Interfaith Harmony Week - Day 1	2Sunday World Interfaith Harmony Week - Day 2 World Wetlands Day
Week 6	3Monday World Interfaith Harmony Week - Day 3	4Tuesday World Cancer Day ^[WHO] World Interfaith Harmony Week - Day 4	5Wednesday World Interfaith Harmony Week - Day 5	6Thursday 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	7Friday World Interfaith Harmony Week - Day 7	8Saturday	9Sunday
Week 7	10Monday	11Tuesday International Day of Women and Girls in Science	12Wednesday	13Thursday World Radio Day ^[UNESCO]	14Friday	15Saturday	16Sunday
Week 8	17Monday Presidents’ Day ^[floating]	18Tuesday	19Wednesday	20Thursday World Day of Social Justice	21Friday International Mother Language Day ^[UNESCO]	22Saturday	23Sunday
Week 9	24Monday	25Tuesday	26Wednesday	27Thursday	28Friday	1 Saturday	2 Sunday
	3 Monday	4 Tuesday	5 Wednesday	6 Thursday	7 Friday	8 Saturday	9 Sunday
	10 Monday	11 Tuesday	12 Wednesday	13 Thursday	14 Friday	15 Saturday	16 Sunday

United Nations March 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 9	24 Monday	25 Tuesday	26 Wednesday	27 Thursday	28 Friday	1Saturday Zero Discrimination Day ^[UNAIDS]	2Sunday
Week 10	3Monday World Wildlife Day	4Tuesday	5Wednesday	6Thursday	7Friday	8Saturday International Women's Day	9Sunday
Week 11	10Monday	11Tuesday	12Wednesday	13Thursday	14Friday	15Saturday	16Sunday
Week 12	17Monday	18Tuesday	19Wednesday	20Thursday International Day of Happiness United Nations French Language Day	21Friday 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	22Saturday World Water Day Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 2	23Sunday World Meteorological Day ^[WMO] Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 3
Week 13	24Monday 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	25Tuesday 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	26Wednesday Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 6	27Thursday Week of Solidarity with the Peoples Struggling against Racism and Racial Discrimination - Day 7	28Friday	29Saturday	30Sunday
Week 14	31Monday Eid al-Fitr ^[headq]	1 Tuesday	2 Wednesday	3 Thursday	4 Friday	5 Saturday	6 Sunday
	7 Monday	8 Tuesday	9 Wednesday	10 Thursday	11 Friday	12 Saturday	13 Sunday

United Nations April 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 14	31 Monday	1Tuesday	2Wednesday World Autism Awareness Day	3Thursday	4Friday International Day for Mine Awareness and Assistance in Mine Action	5Saturday	6Sunday International Day of Sport for Development and Peace
Week 15	7Monday Day of Remembrance of the Victims of the Rwanda Genocide World Health Day ^[WHO]	8Tuesday	9Wednesday	10Thursday	11Friday	12Saturday International Day of Human Space Flight	13Sunday
Week 16	14Monday	15Tuesday	16Wednesday	17Thursday	18Friday Good Friday ^[headq] Orthodox Good Friday ^[floating]	19Saturday	20Sunday United Nations Chinese Language Day
Week 17	21Monday	22Tuesday International Mother Earth Day	23Wednesday World Book and Copyright Day ^[UNESCO] United Nations English Language Day	24Thursday World Immunization Week - Day 1 ^[WHO]	25Friday World Malaria Day ^[WHO] World Immunization Week - Day 2 ^[WHO]	26Saturday World Intellectual Property Day ^[WIPO] World Immunization Week - Day 3 ^[WHO] International Chernobyl Disaster Remembrance Day	27Sunday World Immunization Week - Day 4 ^[WHO]
Week 18	28Monday World Day for Safety and Health at Work ^[ILO] World Immunization Week - Day 5 ^[WHO]	29Tuesday Day of Remembrance for all Victims of Chemical Warfare World Immunization Week - Day 6 ^[WHO]	30Wednesday International Jazz Day ^[UNESCO] World Immunization Week - Day 7 ^[WHO]	1 Thursday	2 Friday	3 Saturday	4 Sunday
	5 Monday	6 Tuesday	7 Wednesday	8 Thursday	9 Friday	10 Saturday	11 Sunday
	12 Monday	13 Tuesday	14 Wednesday	15 Thursday	16 Friday	17 Saturday	18 Sunday

United Nations May 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 18	28 Monday	29 Tuesday	30 Wednesday	1Thursday	2Friday World Tuna Day	3Saturday World Press Freedom Day ^[UNESCO]	4Sunday
Week 19	5Monday International Midwives' Day	6Tuesday	7Wednesday	8Thursday Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War	9Friday Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War	10Saturday World Migratory Bird Day - Day 1 ^[UNEP]	11Sunday World Migratory Bird Day - Day 2 ^[UNEP]
Week 20	12Monday Day of Vesak ^[floating]	13Tuesday	14Wednesday	15Thursday International Day of Families	16Friday	17Saturday World Telecommunication and Information Society Day ^[ITU]	18Sunday
Week 21	19Monday	20Tuesday	21Wednesday World Day for Cultural Diversity for Dialogue and Development ^[UNESCO]	22Thursday International Day for Biological Diversity	23Friday International Day to End Obstetric Fistula	24Saturday	25Sunday Africa Day Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 1
Week 22	26Monday Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 2 Memorial Day ^[headq]	27Tuesday Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 3	28Wednesday Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 4	29Thursday International Day of United Nations Peacekeepers Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 5	30Friday Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 6	31Saturday World No-Tobacco Day ^[WHO] Week of Solidarity with the Peoples of Non-Self-Governing Territories - Day 7	1 Sunday
	2 Monday	3 Tuesday	4 Wednesday	5 Thursday	6 Friday	7 Saturday	8 Sunday
	9 Monday	10 Tuesday	11 Wednesday	12 Thursday	13 Friday	14 Saturday	15 Sunday

United Nations June 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 22	26 Monday	27 Tuesday	28 Wednesday	29 Thursday	30 Friday	31 Saturday	1Sunday Global Day of Parents
Week 23	2Monday	3Tuesday	4Wednesday International Day of Innocent Children Victims of Aggression	5Thursday World Environment Day ^[UNEP]	6Friday United Nations Russian Language Day	7Saturday Eid al-Adha ^[headq]	8Sunday World Oceans Day
Week 24	9Monday	10Tuesday	11Wednesday	12Thursday World Day Against Child Labour ^[ILO]	13Friday International Albinism Awareness Day	14Saturday World Blood Donor Day ^[WHO]	15Sunday
Week 25	16Monday International Day of Solidarity with the Struggling People of South Africa International Day of Family Remittances	17Tuesday World Day to Combat Desertification and Drought	18Wednesday	19Thursday International Day for the Elimination of Sexual Violence in Conflict	20Friday World Refugee Day	21Saturday International Day of Yoga	22Sunday
Week 26	23Monday United Nations Public Service Day International Widow's Day	24Tuesday	25Wednesday Day of the Seafarer ^[IMO]	26Thursday International Day against Drug Abuse and Illicit Trafficking United Nations International Day in Support of Victims of Torture	27Friday	28Saturday	29Sunday
Week 27	30Monday International Day of Friendship ^[FAO] International Asteroid Day	1 Tuesday	2 Wednesday	3 Thursday	4 Friday	5 Saturday	6 Sunday
	7 Monday	8 Tuesday	9 Wednesday	10 Thursday	11 Friday	12 Saturday	13 Sunday

United Nations July 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 27	30 Monday	1Tuesday	2Wednesday	3Thursday	4Friday Independence Day ^[headq]	5Saturday International Day of Cooperatives	6Sunday
Week 28	7Monday	8Tuesday	9Wednesday	10Thursday	11Friday World Population Day	12Saturday	13Sunday
Week 29	14Monday	15Tuesday World Youth Skills Day	16Wednesday	17Thursday	18Friday Nelson Mandela International Day	19Saturday	20Sunday
Week 30	21Monday	22Tuesday	23Wednesday	24Thursday	25Friday	26Saturday	27Sunday
Week 31	28Monday World Hepatitis Day ^[WHO]	29Tuesday	30Wednesday International Day of Friendship World Day against Trafficking in Persons	31Thursday	1 Friday	2 Saturday	3 Sunday
	4 Monday	5 Tuesday	6 Wednesday	7 Thursday	8 Friday	9 Saturday	10 Sunday
	11 Monday	12 Tuesday	13 Wednesday	14 Thursday	15 Friday	16 Saturday	17 Sunday

United Nations August 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 31	28 Monday	29 Tuesday	30 Wednesday	31 Thursday	1Friday World Breastfeeding Week - Day 1 ^[WHO]	2Saturday World Breastfeeding Week - Day 2 ^[WHO]	3Sunday World Breastfeeding Week - Day 3 ^[WHO]
Week 32	4Monday World Breastfeeding Week - Day 4 ^[WHO]	5Tuesday World Breastfeeding Week - Day 5 ^[WHO]	6Wednesday World Breastfeeding Week - Day 6 ^[WHO]	7Thursday World Breastfeeding Week - Day 7 ^[WHO]	8Friday	9Saturday International Day of the World's Indigenous People International Day of Solidarity with the Struggle of Women in South Africa and Namibia	10Sunday
Week 33	11Monday	12Tuesday International Youth Day	13Wednesday	14Thursday	15Friday	16Saturday	17Sunday
Week 34	18Monday	19Tuesday World Humanitarian Day	20Wednesday	21Thursday	22Friday	23Saturday International Day for the Remembrance of the Slave Trade and Its Abolition ^[UNESCO]	24Sunday
Week 35	25Monday	26Tuesday	27Wednesday	28Thursday	29Friday International Day against Nuclear Tests	30Saturday International Day of the Victims of Enforced Disappearances	31Sunday
	1 Monday	2 Tuesday	3 Wednesday	4 Thursday	5 Friday	6 Saturday	7 Sunday
	8 Monday	9 Tuesday	10 Wednesday	11 Thursday	12 Friday	13 Saturday	14 Sunday

United Nations September 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 36	1Monday Labour Day ^[headq]	2Tuesday	3Wednesday	4Thursday	5Friday International Day of Charity	6Saturday	7Sunday
Week 37	8Monday International Literacy Day ^[UNESCO]	9Tuesday	10Wednesday World Suicide Prevention Day ^[WHO]	11Thursday	12Friday United Nations Day for South-South Cooperation	13Saturday	14Sunday
Week 38	15Monday International Day of Democracy	16Tuesday International Day for the Preservation of the Ozone Layer	17Wednesday	18Thursday	19Friday	20Saturday	21Sunday International Day of Peace
Week 39	22Monday	23Tuesday	24Wednesday	25Thursday World Maritime Day ^[IMO]	26Friday International Day for the Total Elimination of Nuclear Weapons	27Saturday World Tourism Day ^[UNWTO]	28Sunday World Rabies Day ^[WHOSPN]
Week 40	29Monday World Heart Day ^[WHOSPN]	30Tuesday	1 Wednesday	2 Thursday	3 Friday	4 Saturday	5 Sunday
	6 Monday	7 Tuesday	8 Wednesday	9 Thursday	10 Friday	11 Saturday	12 Sunday
	13 Monday	14 Tuesday	15 Wednesday	16 Thursday	17 Friday	18 Saturday	19 Sunday

United Nations October 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 40	29 Monday	30 Tuesday	1Wednesday International Day of Older Persons	2Thursday International Day of Non-Violence Yom Kippur ^[floating]	3Friday	4Saturday World Space Week - Day 1	5Sunday World Teachers Day ^[UNESCO] ^[ILO] World Space Week - Day 2
Week 41	6Monday World Habitat Day World Space Week - Day 3	7Tuesday World Space Week - Day 4	8Wednesday World Space Week - Day 5 International Walk to School Day	9Thursday World Post Day ^[UPU] World Sight Day ^[WHOSPN] World Space Week - Day 6	10Friday World Mental Health Day ^[WHO] World Space Week - Day 7	11Saturday International Day of the Girl Child	12Sunday United Nations Spanish Language Day
Week 42	13Monday International Day for Disaster Reduction	14Tuesday	15Wednesday International Day of Rural Women	16Thursday World Food Day ^[FAO]	17Friday International Day for the Eradication of Poverty	18Saturday	19Sunday
Week 43	20Monday World Statistics Day	21Tuesday	22Wednesday	23Thursday	24Friday United Nations Day World Development Information Day Disarmament Week - Day 1	25Saturday Disarmament Week - Day 2	26Sunday Disarmament Week - Day 3
Week 44	27Monday World Day for Audiovisual Heritage ^[UNESCO] Disarmament Week - Day 4	28Tuesday Disarmament Week - Day 5	29Wednesday Disarmament Week - Day 6	30Thursday Disarmament Week - Day 7	31Friday World Cities Day	1 Saturday	2 Sunday
	3 Monday	4 Tuesday	5 Wednesday	6 Thursday	7 Friday	8 Saturday	9 Sunday
	10 Monday	11 Tuesday	12 Wednesday	13 Thursday	14 Friday	15 Saturday	16 Sunday

United Nations November 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 44	27 Monday	28 Tuesday	29 Wednesday	30 Thursday	31 Friday	1Saturday	2Sunday International Day to End Impunity for Crimes against Journalists
Week 45	3Monday	4Tuesday	5Wednesday World Tsunami Awareness Day Gurpurab ^[floating]	6Thursday International Day for Preventing the Exploitation of the Environment in War and Armed Conflict	7Friday	8Saturday	9Sunday International Week of Science and Peace - Day 1
Week 46	10Monday World Science Day for Peace and Development ^[UNESCO] International Week of Science and Peace - Day 2	11Tuesday International Week of Science and Peace - Day 3	12Wednesday World Pneumonia Day ^[WHOSPN] International Week of Science and Peace - Day 4	13Thursday International Week of Science and Peace - Day 5	14Friday World Diabetes Day ^[WHO] International Week of Science and Peace - Day 6	15Saturday International Week of Science and Peace - Day 7	16Sunday International Day for Tolerance World Day of Remembrance for Road Traffic Victims ^[WHO]
Week 47	17Monday	18Tuesday	19Wednesday World Chronic Obstructive Pulmonary Disease Day ^[WHO] World Toilet Day ^[UNICEF]	20Thursday World Philosophy Day ^[UNESCO] Africa Industrialization Day Universal Children's Day	21Friday World Television Day	22Saturday	23Sunday
Week 48	24Monday	25Tuesday International Day for the Elimination of Violence against Women	26Wednesday	27Thursday Thanksgiving Day ^[headq]	28Friday	29Saturday International Day of Solidarity with the Palestinian People	30Sunday
	1 Monday	2 Tuesday	3 Wednesday	4 Thursday	5 Friday	6 Saturday	7 Sunday
	8 Monday	9 Tuesday	10 Wednesday	11 Thursday	12 Friday	13 Saturday	14 Sunday

United Nations December 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 49	1Monday World AIDS Day	2Tuesday International Day for the Abolition of Slavery	3Wednesday International Day of Persons with Disabilities	4Thursday	5Friday International Volunteer Day for Economic and Social Development World Soil Day ^[FAO]	6Saturday	7Sunday International Civil Aviation Day ^[ICAO]
Week 50	8Monday	9Tuesday 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	10Wednesday Human Rights Day	11Thursday International Mountain Day	12Friday	13Saturday	14Sunday
Week 51	15Monday	16Tuesday	17Wednesday	18Thursday International Migrants Day United Nations Arabic Language Day	19Friday	20Saturday International Human Solidarity Day	21Sunday
Week 52	22Monday	23Tuesday	24Wednesday	25Thursday Christmas Day ^[headq]	26Friday	27Saturday	28Sunday
Week 1	29Monday	30Tuesday	31Wednesday	1 Thursday	2 Friday	3 Saturday	4 Sunday
	5 Monday	6 Tuesday	7 Wednesday	8 Thursday	9 Friday	10 Saturday	11 Sunday
	12 Monday	13 Tuesday	14 Wednesday	15 Thursday	16 Friday	17 Saturday	18 Sunday

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.