Article Detail International custom day Answer: 26 January Similar Questions : 1. World Literacy Day Answer: 8 September 2. Indian Independence Day Answer: 15 August 3. Indian Air Force Day Answer: 8 October 4. Diabetes Day Answer: 14 November 5. International custom day Answer: 26 January 6. World Homeopathy Day Answer: 10 April 7. World kidney day Answer: 9th March Read more from - Important Days of Year