Maximum calendar days answered for 25 years by a child
The record for answering the maximum number of calendar days for 25 years was set by R. Pranesh Raj (born on December 3, 2013) of Dindigul, Tamil Nadu. He correctly answered 53 days by their random dates for twenty-five years from January 1, 2007 to December 31, 2031 (using mental calculation) in 7 minutes and 45 seconds, at the age of 10 years, 3 months and 1 day, as confirmed on March 4, 2024.