Get-NthWeekDay.ps1
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Function Get-NthWeekDay { [cmdletbinding()] [alias('Get-PatchTuesday')] param( [parameter()] [ccm.Month]$Month = (Get-Date -Format 'MM'), [parameter()] [int]$Year = (Get-Date -Format 'yyyy'), [Parameter()] [int]$Nth = 2, [Parameter()] [DayOfWeek]$DayOfWeek = [DayOfWeek]::Tuesday ) begin { $FirstDayOfMonth = ([datetime]"$Month/1/$Year").Date $daysInMonth = (($FirstDayOfMonth.AddMonths(1) - $FirstDayOfMonth).totaldays) } process { $foundDays = 1..$daysInMonth | ForEach-Object { $FirstDayOfMonth.AddDays($PSItem - 1) } | Where-Object { $PSItem.DayOfWeek -eq $DayOfWeek } try { $foundDays[($Nth - 1)] } catch { Write-Error -ErrorAction Stop -Message "Did not find '$Nth'th '$DayOfWeek' in '$Month', '$Year'" } } } |