About International Volunteer Day (IVD)
International Volunteer Day (IVD) mandated by the UN General Assembly, is held each year on 5 December. It is viewed as a unique chance for volunteers and organisations to celebrate their efforts, to share their values, and to promote their work among their communities, non-governmental organisations (NGOs), United Nations agencies, government authorities and the private sector.
Apart from mobilising thousands of volunteers every year, the United Nations Volunteers (UNV) programme contributes to peace and development by advocating for the recognition of volunteers and working with partners to integrate volunteerism into development programming.
Reference: https://www.volunteeringaustralia.org/get-involved/events/international-volunteer-day/#/