Powershell - Subtract two dates excluding the weekends - powershell

Question

I have two dates: 1. Current_Date 2. Last_Updated_Date
I would like to take the Current_Date subtract the Last_Updated_Date without including the weekends.
This will be done in Powershell. Any input would be appreciated.
Thank you.

Answer 1

You may use a helper function for that:
function Get-WorkingDates {
[CmdletBinding()]
param (
[Parameter(Mandatory = $true, Position = 0)]
[datetime]$StartDate,
[Parameter(Mandatory = $true, Position = 1)]
[datetime]$EndDate
)
# swap if the end date is before the start date
if ($EndDate -lt $StartDate) { $StartDate, $EndDate = $EndDate, $StartDate }
$difference = $enddate - $startdate # or: New-TimeSpan -Start $startdate -End $enddate
$days = [Math]::Ceiling($difference.TotalDays) + 1
# loop through the days and filter out the dates that are Saturday or Sunday
1..$days | ForEach-Object {
$startdate
$startdate = $startdate.AddDays(1)
} | Where-Object { 1..5 -contains $_.DayOfWeek }
# or filter with Where-Object { $_.DayOfWeek -gt 'Sunday' -and $_.DayOfWeek -lt 'Saturday' }
# or something like Where-Object { $_.DayOfWeek -gt 0 -and $_.DayOfWeek -lt 6 }
}
and use it like this
Get-WorkingDates $Current_Date $Last_Updated_Date
This will output an array of working day dates.
Of course you can capture that in a variable if you like:
$workingDates = Get-WorkingDates $Current_Date $Last_Updated_Date
to get the number of working dates with #($workingDates).Count
the #() in the last example is to force the $workingDates variable to be an array that has a .Count property, even if there is only one date in it.