December is:
December 1 - World AIDS Day
December 2 - International Day for the Abolition of Slavery & World Futures Day
December 3 - International Day of Persons with Disabilities & Giving Tuesday (USA)
December 4 - International Day of Banks & International Day Against Unilateral Coercive Measures
December 5 - International Volunteer Day & World Soil Day
December 7 - Pearl Harbor Remembrance Day (USA) & International Civil Aviation Day
December 9 - International Genocide Prevention Day & International Anti-Corruption Day
December 10 - International Human Rights Day
December 11 - International Mountain Day
December 12 - International Day of Neutrality & International Universal Health Coverage Day
December 15 - Bill of Rights Day
December 18 - International Migrants Day & World Arabic Language Day
December 20 - International Human Solidarity Day
December 21 - World Meditation Day & World Basketball Day
December 27 - International Day of Epidemic Preparedness
December 29 - Wounded Knee Day
December 31 - New Year's Eve