One very common requirement when creating a Power BI report is the ability to apply a filter for the current day, week, month, quarter or year. There are several ways of implementing this: you could add relative date columns to your Date table as I show here (I used DAX calculated columns but you could also do this in M quite easily too); you could also build the filter into the DAX for your measures, although that could mean you end up with a lot of quite complex measures.
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