Article Detail Nagasaki Day Answer: 9th August Similar Questions : 1. World Standards Day Answer: 14 October 2. World Ozone Day Answer: 16 September 3. World Environment Day Answer: 5th June 4. International Friendship Day Answer: 3rd August 5. World Anti-tobacco Day Answer: 31 May 6. World Deaf Day Answer: 26 September 7. World Haemophilia Day Answer: 17 April Read more from - Important Days of Year