4-4-5 Calendar

in budgeting and accounting, is the breakdown of each month into weeks by counting the number of times Friday occurs within each month, e.g., Jan = 4 weeks, Feb = 4 weeks, Mar = 5 weeks, Apr = 4 weeks, May = 4 weeks, Jun = 5 weeks… etc. to total 52 weeks in a 12 month period. Every third month, Friday will occur 5 times. All other months, Friday will occur 4 times. In the months where Friday occurs 5 times, it is considered a 5 week month. Whereas, the 4 Friday months will be considered as 4 week months.

- Used to explain the concept in accounting and business contexts.
- Used when training staff or documenting procedures and policies.

- Example: Teams reference **4-4-5 Calendar** when defining terms in manuals, policies, or training materials.

- Why it matters: Improves clarity and consistency across documentation and decision-making.