The 4-4-5 Calendar
Posted by Dylan Wan on February 5, 2007
Some organizations use the 4-4-5 calendar for managing their accounting periods. it is a common calendar structure for some industries, such as retail.
The 4-4-5 calendar divides a year into 4 quarters. Each quarter has 13 weeks which are grouped into two 4-weeks “months” and and one 5-week “month”. The grouping of 13 weeks may be set up as 5-4-4 weeks or 4-5-4 weeks, but the 4-4-5 seems to be the most common arrangement.
When a 4-4-5 calendar is in use, reports with period by period comparison or trend over periods do not make much sense. You can still do the comparison of a period over the same period in the prior year. You can also have the week by week data comparison.
See also: The 13 period calendar