Time intelligence functions

Time intelligence functions are a crucial topic on the path to becoming an experienced data analyst. These functions allow you to perform calculations based on time dimensions such as dates, hours, months, or years. They enable you to make comparisons, identify trends, and conduct historical analysis more effectively.

In this section, I will show you some of DAX’s most commonly used time intelligence functions. Before introducing the first function, it’s important to know that time intelligence functions have a few minimum requirements to function correctly. These requirements are as follows:

• There must be a calendar table in your model
• All dates must be present for the period you are looking for
• The calendar table should always start on January 1 and end on December 31, including each day within this period
• The calendar table must contain a column of type DateTime or Date
• The calendar table must be marked as the...