One date commemorates the value of human time that changes the world for the better: 5 December, recognised as the International Day of the World's Indigenous People. International Children's Day volunteer activities. It was in 1985 that the United Nations General Assembly dedicated workshop to all those who volunteer their time, work and training to those in need in different corners of the world. The UN called the initiative "a celebration of our commitment and our hope for a better world", for which around one billion volunteers in different countries strive. In 2018, the UN's University Secretary , António Guterres, highlighted the enormous strength and valued the contribution of volunteers: "They are the first to act in times of crisis, create social bonds and give a voice to marginalised and vulnerable groups".

In Pamplona, San Sebastián, Madrid... at the University of Navarra, to talk about volunteer activities is to talk about Tantaka, which since 2012 has been putting the time and talent of students, professors and other professionals of the University "drop by drop" at the service of society. 1,387 volunteers are involved in 166 projects, at partnership with 138 organisations and social groups in different cities.

Helping a child with his homework at the Ermitagaña public high school or setting up basketball games in the San Jorge neighbourhood; accompanying the elderly in reading a book at residency program Amavir Oblatas de la Rochapea; giving robotics workshops to children with autism at association Gautena in San Sebastián or setting up a small solidarity Library Services for 150 children attended by the parish of the Canillejas neighbourhood in Madrid. These are just some examples of how the city opens its doors to Tantaka's volunteer activities . A volunteer activities that aims to achieve a fairer, more egalitarian and inclusive society.

Tantaka volunteers have spent52,207 hours in the last year helping others. But what is the value of time? An hour given to a person in need can transform the world. It can turn a hostile place into a social space of hope that lights smiles on the faces most marked by suffering. Because, as Nobel Peace Prize winner Desmond Tutu said, "all our humanity depends on recognising our humanity in others".