Holidays calendar August 2013‹ July 2013September 2013 ›DatePopular holidaysOther holidays and observances1 ThursdayWorld Wide Web Day,World Lung Cancer Day,Girlfriends Day,World Breastfeeding Week2 FridayInternational Beer Day,World Breastfeeding Week3 SaturdayEarth Overshoot Day,International Mustard Day,Watermelon Day,World Breastfeeding Week4 SundayInternational Assistance Dog Week,World Breastfeeding Week5 MondaySummer Bank HolidayUnderwear Day,International Assistance Dog Week,World Breastfeeding Week6 TuesdayInternational Assistance Dog Week,World Breastfeeding Week7 WednesdayInternational Assistance Dog Week,World Breastfeeding Week8 ThursdayInternational Assistance Dog Week,International Cat Day9 FridayInternational Assistance Dog Week,International Day of the World's Indigenous People10 SaturdayWorld Lion Day,International Assistance Dog Week,Bowling Day11 Sunday12 MondayWorld Elephant Day,International Youth Day13 TuesdayInternational Wolf Day,International Left Handers Day14 Wednesday15 Thursday16 Friday17 SaturdayInternational Homeless Animals’ Day,Day of Positively Twisted People,International Geocaching Day18 SundayInternational Lighthouse Day19 MondayWorld Photo Day,World Humanitarian Day20 TuesdayWorld Mosquito Day21 Wednesday22 Thursday23 FridayInternational Day for the Remembrance of the Slave Trade and Its Abolition24 SaturdayInternational Bat Night,Pluto Demoted Day25 Sunday26 MondaySummer Bank Holiday27 Tuesday28 Wednesday29 ThursdayInternational Day against Nuclear Tests30 FridayInternational Day of the Disappeared,International Whale Shark Day,International Day of the Victims of Enforced Disappearances31 SaturdaySuccess!Error!