Script error

I am running the follwoing script for a remote computer. PS remoting is enabled on remote computer 

Function GetUpTime
{
	param([string] $LastBootTime)
	$Uptime = (Get-Date) - [System.Management.ManagementDateTimeconverter]::ToDateTime($LastBootTime)"Days: $($Uptime.Days); Hours: $($Uptime.Hours); Minutes: $($Uptime.Minutes)" 
}
$OperatingSystem = Get-WmiObject Win32_OperatingSystem -ComputerName "MX212DCCIP02" -ErrorAction SilentlyContinue
$Uptime = GetUptime( $OperatingSystem.LastBootUpTime 
)

Write-Host $Uptime
Getting the below error. Please somebody help

Exception calling "ToDateTime" with "1" argument(s): "Specified argument was out of the range of valid values.
Parameter name: dmtfDate"
At C:\temp\test.ps1:4 char:84+     $Uptime = (Get-Date) - [System.Management.ManagementDateTimeconverter]::ToDateTime <<<< ($LastBootTime)+ CategoryInfo          : NotSpecified: (:) [], MethodInvocationException+ FullyQualifiedErrorId : DotNetMethodException