From the website, givingtuesday.org:

GivingTuesday is a global generosity movement unleashing the power of people and organizations to transform their communities and the world on December 3, 2019 and every day. It was created in 2012 as a simple idea: a day that encourages people to do good. Over the past seven years, this idea has grown into a global movement that inspires hundreds of millions of people to give, collaborate, and celebrate generosity.

DECEMBER