Powershell sleep function, with progress bar.

Start-ProgressSleep.ps1

function Start-ProgressSleep {
	Param(
		[Parameter(ParameterSetName='seconds',Mandatory=$true)]
		[int]$seconds,
		[Parameter(ParameterSetName='span',ValueFromPipeline,Mandatory=$true)]
		[timespan]$timespan
	)
    <#
    .SYNOPSIS
    Function to Start-Sleep with a progress bar
    .DESCRIPTION
    Duplicates the functionality of the 'Start-Sleep' command but adds a progress bar. Time is passed to the function in seconds as an argument or as a timespan.
    .NOTES
    # Updated from original to include the 'Wait time' in minutes and seconds
    .EXAMPLE
    Start-ProgressSleep -seconds 300
	.EXAMPLE
    Start-ProgressSleep -timespan 1:30:15
    .LINK
    https://gist.github.com/evoelker/fcd8dc1563e15a6f8e5e11fdd93880cf
    https://gist.github.com/ctigeek/bd637eeaeeb71c5b17f4
    #>
    
	$WaitSeconds = $(
		switch ($PsCmdlet.ParameterSetName){
			'seconds' {
				$seconds
			}
			'span' {
				$timespan.TotalSeconds
			}
		}
	)

	$doneDT = (Get-Date).AddSeconds($WaitSeconds)
    
	$TotalWaitTime = "Waiting $($([timespan]::fromseconds($WaitSeconds)).ToString("hh\:mm\:ss"))..."

    while($doneDT -gt (Get-Date)) {
        $secondsLeft = $doneDT.Subtract((Get-Date)).TotalSeconds
        $percent = ($WaitSeconds - $secondsLeft) / $WaitSeconds * 100
        Write-Progress -Activity $TotalWaitTime -Status "Waiting..." -SecondsRemaining $secondsLeft -PercentComplete $percent
        [System.Threading.Thread]::Sleep(500)
    }
    Write-Progress -Activity $TotalWaitTime -Status "Done" -SecondsRemaining 0 -Completed
}