Start-Timer.ps1

function Start-Timer {
    <#
        .SYNOPSIS
            Set the global timerStart variable.
        .EXAMPLE
            Start-Timer -Silent
            Will set the variable, and not output anything
        .EXAMPLE
            Write-Verbose (Start-Timer)
            Will set the variable, and write the start time to the verbose stream.
        .NOTES
            Author: Øyvind Kallstad
            Date: 19.04.2015
            Version: 1.0
    #>
    [CmdletBinding()]
    param (
        # Do not output anything.
        [Parameter()]
        [switch] $Silent = $false
    )
    $global:timerStart = Get-Date
    if (-not($Silent)) {
        Write-Output $global:timerStart
    }
}