4 4 5 Calendar 2025 Dates Excel. This helps make comparisons consistent, can simplify. Creating a calendar in excel can be a useful way to organize and track important dates and events.
That means every quarter has 13 weeks/ 91 days. For example, date (2015, 15, 5) returns the serial number representing march 1, 2016 (january 5, 2015 plus 15 months).