World Important or International Days
December	01	World AIDS Day
December	02	World Computer Literacy Day, International Day for the Abolition of Slavery
December	03	International Day of Disabled People, World Conservation Day
December	05	International Volunteer Day for Economic and Social Development
December	07	International Civil Aviation Day
December	09	The International Day Against Corruption
December	10	International Day of Broadcasting, Human Rights Day
December	11	International Mountain Day
December	14	World Energy Day
December	18	International Migrants Day
December	20	International Human Solidarity Day
December	25	X–mas Day
December	29	International Biodiversity Day

Hindu Festivals 2019
December	10-12-2019	Karthigai Deepam

List of Government Holidays in TamilNadu : 2019
December	25-12-2019	X–mas