Setting time on Raspberry Pi using just PowerShell

Question

I'm running Windows 10 IoT Core on my Raspberry Pi 2 and I need to set its Date and Time to the Date and Time of a local device.
So, I created a variable $dateTime to store the local date and time and I connect to the Pi using the password that I store on another variable $password and Enter-PSSession using a credential object. After that, I try assining the Pi's DateTime through Set-Date = $device using Enter-PSSession. Now that I'm connected I try assigning the remote devices DateTime using Set-Date = $dateTime | Out-String.
I get the following error:
cannot convertvalue "=" to type "System.TimeSpan" error 

Where could I be going wrong?
$dateTime = Get-Date
$password = ConvertTo-SecureString "mypassword" -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential ("myremotedevice     \Administrator",$password)
Enter-PSSession -ComputerName myremotedevice -Credential $cred
Set-Date = $dateTime | Out-String

powershell raspberry-pi iot windows-10-iot-core

Answer 1

The Enter-PSSession is for interactive sessions, so use this instead:

$dateTime = Get-Date;
$password = ConvertTo-SecureString "mypassword" -AsPlainText -Force;
$cred = New-Object System.Management.Automation.PSCredential ("myremotedevice     \Administrator",$password);
Invoke-Command -ComputerName myremotedevice -Credential $cred -ScriptBlock {
    Set-Date -Date $using:datetime;
}

And try this if you have multiple executions happening:

$dateTime = Get-Date;
$password = ConvertTo-SecureString "mypassword" -AsPlainText -Force;
$cred = New-Object System.Management.Automation.PSCredential ("myremotedevice     \Administrator",$password);
$session = New-PsSession -ComputerName -Credential $cred;
Invoke-Command -Session $session -ScriptBlock {
    Set-Date -Date $using:datetime;
}
Invoke-Command -Session $session -ScriptBlock { [...] }
.
.
Disconnect-PsSession -Session $session;