![]() ![]() How does NRF determine the need for a 53rd week? ![]() This occurs approximately every five to six years, though this is not always the case. What is a 53-week year?ĭue to the layout of the 4-5-4 Calendar (52 weeks x 7 days = 364 days), which results in one remaining day each year, and the occurrence of Leap Year, it is sometimes necessary to add a 53rd week to the end of the calendar for sales reporting purposes only. In recent years, however, as the flow of information has improved, more companies are releasing sales data earlier in the week. The 4-5-4 Calendar also establishes Sales Release dates, which have historically been on the first Thursday following the month’s end. Hence, like days are compared to like days for sales reporting purposes. The layout of the calendar lines up holidays and ensures the same number of Saturdays and Sundays in comparable months. The 4-5-4 Calendar serves as a voluntary guide for the retail industry and ensures sales comparability between years by dividing the year into months based on a 4 weeks – 5 weeks – 4 weeks format. What is the purpose of the 4-5-4 Calendar? Many stores began using the 4-5-4 Calendar in the 1940s. A calendar that maintained the same number of weekends in comparable months was desired and the 4-5-4 Calendar was developed. This calendar became problematic as Saturdays and Sundays became an increasingly large percentage of sales, since the number of weekends in a month varied year to year. Prior to and during the 1930s, retailers used a straight calendar to report monthly sales. The 4-5-4 Calendar, which is widely followed by retailers today, was derived in the 1930s during an informal inter-industry discussion. When and why was the 4-5-4 Calendar created? ![]()
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