<#

.Synopsis

   This script retreives the timezone of a local or remote computer via WMI.

.DESCRIPTION

   This script retreives the timezone of a local or remote computer via WMI.

.NOTES

    Created by: Jason Wasser

    Modified: 9/11/2015 03:27:30 PM 

    Changelog:

     * Added credential support.

     * Simplified code as per suggestions from Jeffrey Hicks @JeffHicks

.EXAMPLE

   Get-TimeZone

   Shows the localhost timezone.

.EXAMPLE

   Get-TimeZone -ComputerName SERVER1

   Shows the timezone of SERVER1.

.EXAMPLE

   Get-TimeZone -ComputerName (Get-Content c:\temp\computerlist.txt)

   Shows the timezone of a list of computers.

.LINK

    https://gallery.technet.microsoft.com/scriptcenter/Get-TimeZone-PowerShell-4f1a34e6

#>

#Get-TimeZone -ComputerName (Get-Content d:\computerlist20160407.txt)

Function Get-TimeZone {

    [CmdletBinding()]

    [Alias()]

    Param

    (

        # Computer name

        [Alias('Name')]

        [Parameter(Mandatory=$false,

                    ValueFromPipeLine=$true,

                    ValueFromPipelineByPropertyName=$true,

                    Position=0)]

        [string[]]$ComputerName=$env:COMPUTERNAME,

        $Credential = [System.Management.Automation.PSCredential]::Empty

    )

    Begin

    {

    }

    Process

    {

        foreach ($Computer in $ComputerName) {

            try {

                $ServerInfo = Get-WmiObject -Class win32_timezone -ComputerName $Computer -ErrorAction Stop -Credential $Credential

                $cn = $ServerInfo.__SERVER

                $TimeZone = $ServerInfo.Caption

                }

            catch {

                $TimeZone = $_.Exception.Message

                }

            finally {

                $propHash = @{

                    Computername = $Computer

                    TimeZone = $TimeZone

                }

                $objTimeZone = New-Object -type PSObject -Property $propHash

                $objTimeZone

                }

            }

    }

    End

    {

    }

}