Ireneo Bughao (born 18 June 1957) was awarded with Ripley’s Believe It or Not's cartoon in January 1997, with a caption that states: “Ireneo Bughao of Manila, Philippines is able to calculate the specific day of the week of any day in the past or future – faster than a computer!”.
He has thought of and perfected a mathematical formula, where he can determine and give accurate answers with ease and astounding speed to those who would like to know the day they were born, or what day a date shall fall centuries from now.Bughao works for PAGCOR, or Philippine Amusement and Gaming Corporation, and is a member of
the 128th Squadron of Philippine Coast Guard Auxiliary.