Holidays calendar December 2011‹ November 2011January 2012 ›DatePopular holidaysOther holidays and observances1 ThursdayWorld AIDS Day2 FridayInternational Day for Abolition of Slavery3 SaturdayInternational Day of Persons with Disabilities4 SundayComputer Science Education Week5 MondayComputer Science Education Week,International Volunteer Day for Economic and Social Development,World Soil Day6 TuesdayComputer Science Education Week7 WednesdayComputer Science Education Week,International Civil Aviation Day8 ThursdayComputer Science Education Week9 FridayComputer Science Education Week,Llama Day,International Anti-Corruption Day10 SaturdayInternational Animal Rights Day,Computer Science Education Week,Human Rights Day11 SundayWorldwide Candle Lighting Day,World Choral Day,International Mountain Day12 MondayPoinsettia Day13 Tuesday14 WednesdayMonkey Day15 ThursdayZamenhof Day16 FridayDay Of Reconciliation,Underdog Day17 SaturdayInternational Day to End Violence Against Sex Workers,Wright Brothers Day18 SundayWorld Snowboard Day,International Migrants Day,Arabic Language Day19 Monday20 TuesdayGames Day,International Human Solidarity Day21 WednesdayWorld Basketball Day22 Thursday23 Friday24 Saturday25 SundayChristmas Day26 MondayBoxing Day27 TuesdayChristmas Day (substitute day)28 Wednesday29 Thursday30 Friday31 SaturdayNew Year's EveSuccess!Error!