World Logic Day is an international day of supporting the development of logic through teaching and research, as well as public dissemination of the discipline. It was proclaimed on 26 November 2019 by UNESCO and the date chosen was 14 January. It corresponds to the date of birth of Alfred Tarski and to the date of death of Kurt Gödel.
The world logic day is celebrated all over the world at 14 January or a date close to this day. These celebrations are coordinated by the Conseil International de Philosophie et des Sciences Humaines (CIPSH). A survey of the celebrations is found on their website.
The UNESCO website devoted to the World Logic Day is found here.