Public/Get-Uptime.ps1
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function global:Get-Uptime { <# .EXTERNALHELP HelperFunctions.psm1-Help.xml #> [CmdletBinding()] [OutputType([pscustomobject])] Param ( [Parameter(Mandatory = $false)] [string]$ComputerName, [Parameter(Mandatory = $false)] [System.Management.Automation.PsCredential]$Credential ) Begin { #Enable TLS 1.2 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 [String]$dtmFormatString = "yyyy-MM-dd HH:mm:ss" $ns = 'root\CIMv2' } Process { $params = @{ NameSpace = $ns ErrorAction = 'Continue' } If (($PSBoundParameters.ContainsKey('ComputerName') -eq $true) -and ($null -ne $PSBoundParameters['ComputerName'])) { $params.Add('ComputerName', $ComputerName) } Else { $ComputerName = [System.Net.Dns]::GetHostByName("LocalHost").HostName } If (($PSBoundParameters.ContainsKey('Credential') -eq $true) -and ($null -ne $PSBoundParameters['Credential'])) { $params.Add('Credential', $Credential) } Try { $objOS = Get-CimInstance -ClassName Win32_OperatingSystem @params If ($null -ne $objOS) { $uptimeTimespan = New-TimeSpan -Start $objOS.LastBootUpTime.ToUniversalTime() -End $objOS.LocalDateTime.ToUniversalTime() $uptime = New-Object System.TimeSpan($uptimeTimespan.Days, $uptimeTimespan.Hours, $uptimeTimespan.Minutes, $uptimeTimespan.Seconds) $lastBootupTime = $objOS.LastBootUpTime.ToString($dtmFormatString) $lastBootupTimeUTC = $objOS.LastBootUpTime.ToUniversalTime().ToString($dtmFormatString) } } Catch { $objOS = Get-WmiObject -Class Win32_OperatingSystem @params If ($null -ne $objOS) { $uptimeTimespan = New-TimeSpan -Start ($objOS.ConvertToDateTime($objOS.LastBootUpTime)).ToUniversalTime() -End ($objOS.ConvertToDateTime($objOS.LocalDateTime)).ToUniversalTime() $uptime = New-Object System.TimeSpan($uptimeTimespan.Days, $uptimeTimespan.Hours, $uptimeTimespan.Minutes, $uptimeTimespan.Seconds) $lastBootupTime = ($objOS.ConvertToDateTime($objOS.LastBootUpTime)).ToString($dtmFormatString) $lastBootupTimeUTC = (($objOS.ConvertToDateTime($objOS.LastBootUpTime)).ToUniversalTime()).ToString($dtmFormatString) } } } End { Return [PSCustomObject]@{ Computer = $ComputerName Uptime = $uptime LastBootTimeUTC = $lastBootupTimeUTC LastBootTimeLocal = $lastBootupTime } } } #End function Get-Uptime |