Use Cases of DAX in Date Columns in Power BI PowerBI Course. DAX provides robust functionalities for working with date columns in Power BI, enabling users to perform a wide range of time intelligence and date-based calculations. By leveraging these DAX functions, you can create comprehensive and insightful reports that effectively analyze temporal data. 1. Year-to-Date (YTD) Calculations Calculate the cumulative total from the beginning of the year to the current date. DAX YTD_Sales = CALCULATE( SUM(Sales[TotalSales]), DATESYTD(Date[Date]) ) 2. Month-to-Date (MTD) Calculations Compute the cumulative total from the start of the month to the current date. DAX MTD_Sales = CALCULATE( SUM(Sales[TotalSales]), DATESMTD(Date[Date]) ) 3. Quarter-to-Date (QTD) Calculations Calculate the cumulative total from the beginning of the quarter to the current date. DAX QTD_Sales = CALCULATE( SUM(Sales[TotalSales]), DATESQTD(Date[Date]) ) 4. Same Period Last Year (SPLY) Compare th...