DATESINPERIOD DAX Function (Time Intelligence)

Returns the dates from the given period.

Syntax

DATESINPERIOD ( <Dates>, <StartDate>, <NumberOfIntervals>, <Interval> )
Parameter Attributes Description
Dates

A column reference containing dates.

StartDate

Start date.

NumberOfIntervals

The number of intervals.

Interval

One of: Day, Month, Quarter, Year.

Return values

Table A table with a single column.

A table containing a single column of unique date values.

Notes

In order to use any time intelligence calculation, you need a well-formed date table. The Date table must satisfy the following requirements:

  • All dates need to be present for the years required. The Date table must always start on January 1 and end on December 31, including all the days in this range. If the report only references fiscal years, then the date table must include all the dates from the first to the last day of a fiscal year. For example, if the fiscal year 2008 starts on July 1, 2007, then the Date table must include all the days from July 1, 2007 to June 30, 2008.
  • There needs to be a column with a DateTime or Date data type containing unique values. This column is usually called Date. Even though the Date column is often used to define relationships with other tables, this is not required. Still, the Date column must contain unique values and should be referenced by the Mark as Date Table feature. In case the column also contains a time part, no time should be used – for example, the time should always be 12:00 am.
  • The Date table must be marked as a date table in the model, in case the relationship between the Date table and any other table is not based on the Date.

Remarks

The dates argument must be a reference to a date/time column.
The result table includes only dates that exist in the dates column.

Examples

The following expression evaluates the measure Sales Amount in the last 12 months starting from the last day of the period in the filter context.

Sales Moving Annual Total =
CALCULATE (
    [Sales Amount],
    DATESINPERIOD (
        'Date'[Date],
        MAX ( 'Date'[Date] ),
        -1,
        YEAR
    )
)

Related articles

Learn more about DATESINPERIOD in the following articles:

Last update: Nov 21, 2020   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo, Maxim Zelensky

MSDN documentation: https://docs.microsoft.com/en-us/dax/datesinperiod-function-dax

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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.

Iterator

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.

Deprecated

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

Deprecated

This parameter is deprecated and its use is not recommended.

DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.

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