Holidays calendar August 2018‹ July 2018September 2018 ›DatePopular holidaysOther holidays and observances1 WednesdayWorld Lung Cancer Day,World Wide Web Day,Girlfriends Day,World Breastfeeding Week2 ThursdayColoring Book Day,World Breastfeeding Week3 FridayInternational Beer Day,Clean Your Floors Day,Watermelon Day,World Breastfeeding Week4 SaturdayInternational Clouded Leopard Day,International Alopecia Day,International Mustard Day,Disc Golf Day,World Breastfeeding Week5 SundayInternational Assistance Dog Week,Underwear Day,Oyster Day,World Breastfeeding Week6 MondaySummer Bank HolidayInternational Assistance Dog Week,Fresh Breath Day,World Breastfeeding Week7 TuesdayInternational Assistance Dog Week,Aged Care Employee Day,World Breastfeeding Week8 WednesdayInternational Assistance Dog Week,International Cat Day9 ThursdayInternational Assistance Dog Week,Book Lovers Day,International Day of the World's Indigenous People10 FridayInternational Assistance Dog Week,World Lion Day11 SaturdayInternational Assistance Dog Week,Bowling Day12 SundayWorld Elephant Day,International Youth Day13 MondayInternational Wolf Day,International Left Handers Day14 Tuesday15 WednesdayWorld Calligraphy Day16 ThursdayWorld Roller Coaster Day17 FridayThrift Shop Day,Day of Positively Twisted People18 SaturdayInternational Homeless Animals’ Day,Ice Cream Pie Day,International Geocaching Day19 SundayInternational Lighthouse Day,World Photo Day,International Orangutan Day,World Humanitarian Day20 MondayWorld Mosquito Day21 TuesdayWorld Optimist Day,International Day of Remembrance and Tribute to the Victims of Terrorism22 WednesdayWorld Plant Milk Day23 ThursdayInternational Day for the Remembrance of the Slave Trade and Its Abolition24 FridayPluto Demoted Day25 SaturdayInternational Bat Night26 SundayInternational Dog Day27 MondaySummer Bank Holiday28 TuesdayBow Tie Day29 WednesdayInternational Day against Nuclear Tests30 ThursdayInternational Whale Shark Day,International Day of the Disappeared,International Day of the Victims of Enforced Disappearances31 FridaySuccess!Error!