World Suicide Prevention Day (WSPD) is an awareness day observed on 10th September every year, in order to provide worldwide commitment and action to prevent suicides, with various activities around the world. The International Association for Suicide Prevention (IASP), collaborates with the World Health Organization (WHO) and the World Federation for Mental Health, to host World Suicide Prevention Day. In 2011 an estimated 40 countries held awareness events to mark the occasion. The United Nations issued 'National Policy for Suicide Prevention' in the 1990s which some countries use as a basis for their suicide policies.
Below is a link with information to recognize someone who could be suicidal and prevent it as well.