Maximum calendar days written for 500 years in 5 minutes by a child using paper and pen
The record for writing the maximum number of calendar days for 500 years in 5 minutes using paper and pen was set by Harshit Singla (born on October 5, 2015) of Sirsa, Haryana. He manually calculated and correctly wrote 36 calendar days of random dates for 500 years from 1700 to 2199 on a sheet of paper in 5 minutes, using a pen, at the age of 9 years, 10 months and 1 day, as confirmed on August 6, 2025.
