Create Custom Time Intelligence Calculations in #dax #powerpivot #tabular

The recent Time Patterns article published in www.daxpatterns.com contains many DAX formulas that I hope will be useful to anyone is interest in implementing time-related calculations in DAX without relying on the Time Intelligence functions. There are several reasons for doing that:

• Custom Calendar: if you have special requirement for your calendar (such as week-based and ISO 8601 calendars), you cannot use standard DAX time intelligence functions.
• DirectQuery: if you enable DirectQuery, time intelligence functions are not supported.

I chose to use a standard month calendar for the complete pattern, because it’s a more complete example of the calculation required. In fact, the ISO calendar has a simpler requirement for comparisons over different periods, and I also have another example for that published on the Week-Based Time Intelligence in DAX article published on SQLBI more than one year ago.

As usual, feedbacks are welcome!