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International Days and Weeks

These are the international days and weeks 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.

Find out more about why we mark international days.

View full list of International Days and Weeks

 

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August 2025

Mon Tue Wed Thu Fri Sat Sun
28
29
30
31
1
2
3
 
 
 
 
World Breastfeeding Week, 1-7 August [WHO]
»
 
 
 
4
5
6
7
8
9
10
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World Breastfeeding Week, 1-7 August [WHO]
 
 
International Day of the World's Indigenous Peoples
 
 
 
 
International Day of Awareness of the Special Development Needs and Challenges of Landlocked Developing Countries
 
 
11
12
13
14
15
16
17
World Steelpan Day
 
International Youth Day
 
 
 
 
 
 
18
19
20
21
22
23
24
 
World Humanitarian Day
 
 
International Day of Remembrance and Tribute to the Victims of Terrorism
 
International Day Commemorating the Victims of Acts of Violence Based on Religion or Belief
 
International Day for the Remembrance of the Slave Trade and Its Abolition [UNESCO]
 
 
25
26
27
28
29
30
31
 
 
World Lake Day
 
 
International Day against Nuclear Tests
 
International Day of the Victims of Enforced Disappearances
 
International Day for People of African Descent
 

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