PARALLELPERIOD DAX Function (Time Intelligence)  Context Transition

Returns a parallel period of dates by the given set of dates and a specified interval.


PARALLELPERIOD ( <Dates>, <NumberOfIntervals>, <Interval> )
Parameter Attributes Description

The name of a column containing dates or a one column table containing dates.


The number of the intervals.



Return values

Table A table with a single column.

A table containing a single column of date values.


The dates argument can be any of the following:

  • A reference to a date/time column. Only in this case a context transition applies because the <Dates> column reference is replaced by
  • A table expression that returns a single column of date/time values.
  • A Boolean expression that defines a single-column table of date/time values.

This function takes the current set of dates in the column specified by Dates, shifts the first date and the last date the specified number of intervals, and then returns all contiguous dates between the two shifted dates. If the interval is a partial range of month, quarter, or year then any partial months in the result are also filled out to complete the entire interval.

The result table includes only dates that exist in the dates column.

Related functions

Other related functions are:

Last update: Aug 7, 2020   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo, Sven Boekhoven

MSDN documentation:

DAX Conventions
Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.


Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.


This function is deprecated. Jump to the Alternatives section to see the function to use.


This parameter is deprecated and its use is not recommended.


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