Skip to main content
Version: I2024.1.3

WeekStartDate

Given the input date, returns the date of the first day of the week. This function is equivalent to the expression DateAdd("d", -1 * (Weekday(Now(), 'vbSunday')-1), Now()).

Syntax

WeekStartDate(Date, [vbWeekStartDayConst])

Parameters

Date
The date to use for the calculation.

vbWeekStartDayConst
Optional. String constant indicating the first day of the week (Sunday, Monday, and so on). This parameter supports the following values:

  • vbUseSystem
  • vbSunday
  • vbMonday
  • vbTuesday
  • vbWednesday
  • vbThursday
  • vbFriday
  • vbSaturday

If no value is provided, this parameter defaults to vbSunday.

Example

The following expression returns the week start date for 2008-06-09:

[DateCustom].[StandardWeek].[Week].&[`WeekStartDate("2008-06-09T12:30:10", "vbSunday")`]