Maximum calendar days recalled from 100,00,000 year dates by a child in 15 minutes
The record for recalling the maximum number of calendar days from 100,00,000 year dates in 15 minutes was set by Avyang Namboothiripad K. B. (born on April 20, 2015) of Malappuram, Kerala. He correctly recalled 23 days from calendar year AD 1 to AD 100,00,000 in 15 minutes using mental calculation at the age of 7 years, 10 months and 11 days, as confirmed on January 31, 2023.