In which year did the United Nations General Assembly (UNGA) declare International Nelson Mandela Day?

International Nelson Mandela Day is observed annually on July 18—Nelson Mandela's birthday—to promote the values ​​of human rights, equality, democracy, and peace. The United Nations General Assembly (UNGA) declared this observance in 2009, and people are encouraged to dedicate 67 minutes to community service in honor of Mandela's 67 years of public service.