Yennayer is the New Year’s Day of the agrarian calendar used since antiquity by the Berbers throughout North Africa. They celebrate it from January 12 to 14 of each year, as the start of the Julian calendar. It is shifted of 13 days compared to the Gregorian calendar, and starts on the 14th of each year. Probably as a result of an error of the first cultural associations that advocated the return to this traditional holiday threatened with extinction, the opinion that the traditional date is January 12 is widespread, although  the exact date is January 14.