Daily DAX : Day 454 DATESWTD

DATESWTD – Week-To-Date in DAX

DATESWTD returns all dates from the start of the current week up to the date in context.

Basic Syntax

DATESWTD(<dates> [, <week_start_day>])
  • <dates> → usually your calendar table date column
  • <week_start_day> → optional
    • 1 = Monday (most common in Europe/UK) ← default in many countries
    • 2 = Tuesday
    • …
    • 7 = Sunday (most common in USA)

Most Common Real-World Use Cases

What you want Typical Measure Formula
Week-to-date Sales WTD Sales WTD Sales = CALCULATE([Total Sales], DATESWTD('Calendar'[Date]))
WTD Orders (week starts Monday) WTD Orders WTD Orders = CALCULATE([Order Count], DATESWTD('Calendar'[Date], 1))
WTD (week starts Sunday – US style) WTD Sales US WTD Sales US = CALCULATE([Sales], DATESWTD('Calendar'[Date], 7))

Quick Reference – What dates are returned?

Today = Wednesday 15th January 2025

DATESWTD(..., 1) → Monday → Sunday (European style)
→ returns: 13, 14, 15 Jan

DATESWTD(..., 7) → Sunday → Saturday (US style)
→ returns: 12, 13, 14, 15 Jan

Most important notes

  • Needs a proper marked as date table calendar
  • Usually combined with CALCULATE
  • Very useful for: WTD / PY WTD / WTD vs Last Week comparisons
  • Does NOT respect row context — only filter context

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