Holidays calendar August 2017‹ July 2017September 2017 ›DatePopular holidaysOther holidays and observances1 TuesdayWorld Wide Web Day,Earth Overshoot Day,World Lung Cancer Day,Girlfriends Day,World Breastfeeding Week2 WednesdayColoring Book Day,World Breastfeeding Week3 ThursdayWatermelon Day,Clean Your Floors Day,World Breastfeeding Week4 FridayInternational Beer Day,World Breastfeeding Week5 SaturdayInternational Alopecia Day,Underwear Day,International Mustard Day,Oyster Day,Disc Golf Day,World Breastfeeding Week6 SundayInternational Assistance Dog Week,Fresh Breath Day,World Breastfeeding Week7 MondaySummer Bank HolidayInternational Assistance Dog Week,World Breastfeeding Week8 TuesdayInternational Assistance Dog Week,International Cat Day9 WednesdayInternational Assistance Dog Week,Book Lovers Day,International Day of the World's Indigenous People10 ThursdayInternational Assistance Dog Week,World Lion Day11 FridayInternational Assistance Dog Week12 SaturdayWorld Elephant Day,International Assistance Dog Week,Bowling Day,International Youth Day13 SundayInternational Left Handers Day,International Wolf Day14 Monday15 Tuesday16 WednesdayWorld Calligraphy Day,World Roller Coaster Day17 ThursdayDay of Positively Twisted People,Thrift Shop Day18 FridayIce Cream Pie Day19 SaturdayWorld Photo Day,International Orangutan Day,International Homeless Animals’ Day,International Geocaching Day,World Humanitarian Day20 SundayInternational Lighthouse Day,World Mosquito Day21 MondayWorld Optimist Day22 TuesdayWorld Plant Milk Day23 WednesdayInternational Day for the Remembrance of the Slave Trade and Its Abolition24 ThursdayPluto Demoted Day25 Friday26 SaturdayInternational Bat Night,International Dog Day27 Sunday28 MondaySummer Bank HolidayBow Tie Day29 TuesdayInternational Day against Nuclear Tests30 WednesdayInternational Day of the Disappeared,International Whale Shark Day,International Day of the Victims of Enforced Disappearances31 ThursdaySuccess!Error!