PSSharedGoods

0.0.65

Public/Time/Set-TimeSynchronization.ps1

                                function Set-TimeSynchronization {

    param(

        [string[]] $TimeSource = 'time.windows.com',

        [int] $MaxPosPhaseCorrection = 86400,

        [int] $MaxnegPhaseCorrection = 86400,

        [int] $PollInterval = 1800

    )

    ## set external time source

    ## set server type to NTP

    Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\Parameters -Name Type -Value 'NTP'

    Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\Config -Name AnnounceFlags -Value 5

    ## Enable NTP server

    Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer -Name Enabled -Value 1

    ## Specify Time source

    Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\Parameters -Name NtpServer -Value "$TimeSource,0x1"

    ## Set poll interval in seconds - every 30 minutes

    Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient -Name SpecialPollInterval -Value $PollInterval

    ## set max +/- time corrections in seconds - 24 hours

    Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\Config -Name MaxPosPhaseCorrection -Value $MaxPosPhaseCorrection

    Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\Config -Name MaxnegPhaseCorrection -Value $MaxnegPhaseCorrection

    Stop-Service -Name W32Time

    Start-Service -Name W32Time

}