Function Reference


_WeekNumberISO

Calculate the weeknumber of a given date

#include <Date.au3>
_WeekNumberISO ( [$iYear = @YEAR [, $iMonth = @MON [, $iDay = @MDAY]]] )

Parameters

$iYear [optional] Year value (default = current year)
$iMonth [optional] Month value (default = current month)
$iDay [optional] Day value (default = current day)

Return Value

Success: a week number of given date.
Failure: 0 and sets the @error flag to non-zero.
@error: 1 - faulty parameters values
99 - On non-acceptable weekstart value

Example

#include <Date.au3>
#include <MsgBoxConstants.au3>

MsgBox($MB_SYSTEMMODAL, "Todays weeknumber", "Todays weeknumber is " & _WeekNumberISO())