Ordinal date
= Ordinal date
{wiki=Ordinal_date}
An ordinal date is a system for representing dates as a single number that indicates the specific day of the year within a given calendar year. This system essentially counts the days of the year from 1 to 365 (or 366 in a leap year). For example: - January 1st would be represented as day 1. - December 31st would be represented as day 365 (or day 366 in a leap year).