Daily DAX : Day 453 ENDOFWEEK

Power BI DAX Function: ENDOFWEEK

Description

The ENDOFWEEK function is a Time Intelligence function in DAX (Data Analysis Expressions) used in Power BI. It returns the date that represents the end of the week containing a specified date (typically Saturday, as weeks are considered to start on Sunday by default in DAX time intelligence).

Syntax

ENDOFWEEK( [, ])
  • : A column reference (usually from a Date table) or a date expression. Required.
  • : Optional. Specifies the week-ending convention. Default is Saturday if omitted.

Examples

1. Basic usage (default: week ends on Saturday):

End of Week = ENDOFWEEK('Date'[Date])

For a date like January 8, 2026 (Thursday), this would return January 10, 2026 (Saturday).

2. In a measure for cumulative sales up to end of week:

Total Sales to End of Week = CALCULATE(
    SUM(Sales[Amount]),
    DATESBETWEEN('Date'[Date], STARTOFWEEK('Date'[Date]), ENDOFWEEK('Date'[Date]))
)

Use Cases

  • Grouping data by week: Create calculated columns in a Date table to mark the week-ending date for weekly aggregations.
  • Time intelligence calculations: Used with functions like CALCULATE, TOTALYTD, or parallel period comparisons at a weekly level.
  • Reporting on week-ending balances: Common in retail or finance where reports show metrics as of the week's end (e.g., inventory at week close).
  • Custom calendars: Adjust with the optional parameter for non-standard weeks (e.g., weeks ending on Friday).

Note: For best results, use with a properly marked Date table. ENDOFWEEK relies on standard ISO-like week behavior unless customized.

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