Get-WeekNumberofCurrentQuarter

# Get current week in a quarter

function Get-ExtendedDate

{

 $a = get-date

  add-member -MemberType scriptmethod -name GetWeekOfYear -value {get-date -uformat %V} -inputobject $a

 $a

 } #end function Get-ExtendedDate

 #Current Quarter
 $CurrentQuarter = [Math]::ceiling((Get-date -f MM)/3)

 #
 If ($CurrentQuarter -eq 1) {
    $WeekNoOfCurrentQuarter = (Get-ExtendedDate).getWeekOfYear()
} else {
    $WeekNoOfCurrentQuarter = (Get-ExtendedDate).getWeekOfYear() - ($CurrentQuarter-1)*13

}
Write-Output $WeekNoOfCurrentQuarter