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Data & Analytics · Advanced

Time Intelligence Functions

DAX functions such as TOTALYTD, SAMEPERIODLASTYEAR, DATEADD, DATESYTD and PARALLELPERIOD that compute values across periods.

Definition

Classic time intelligence functions require a contiguous date table marked as a date table and related to the facts. They power year-to-date, prior-year and moving-period comparisons. Calendar-based (enhanced) time intelligence was introduced in 2025 for custom calendars.

Example

Sales LY = CALCULATE([Total Sales], SAMEPERIODLASTYEAR('Date'[Date]))

Exam tip

Time intelligence returning blanks or wrong values usually means there is no proper marked date table.

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