World Kindness Day is an international observance on 13 November. It's a day just to be kind! Be kind to yourself, to your family, even your grouchy neighbour. It was introduced in 1998 by the World Kindness Movement, a coalition of nations' kindness NGOs. It is observed in many countries, including Canada, Australia, Nigeria and the United Arab Emirates. Singapore observed the day for the first time in 2009. Italy and India also observed the day.

Source: https://www.staykind.com.au/who-we-are/what-we-do/world-kindness-day/