Seconds and milliseconds support in SFTP?

Please answer the following

"OpenSSH for Windows" version
((Get-Item (Get-Command sshd).Source).VersionInfo.FileVersion)

Get-Command : The term 'sshd' is not recognized as the name of a cmdlet, function, script file, or operable program. Ch
eck the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:13
+ ((Get-Item (Get-Command sshd).Source).VersionInfo.FileVersion)
+             ~~~~~~~~~~~~~~~~
	+ CategoryInfo          : ObjectNotFound: (sshd:String) [Get-Command], CommandNotFoundException
	+ FullyQualifiedErrorId : CommandNotFoundException,Microsoft.PowerShell.Commands.GetCommandCommand

Get-Item : Cannot bind argument to parameter 'Path' because it is null.
At line:1 char:12
+ ((Get-Item (Get-Command sshd).Source).VersionInfo.FileVersion)
+            ~~~~~~~~~~~~~~~~~~~~~~~~~
	+ CategoryInfo          : InvalidData: (:) [Get-Item], ParameterBindingValidationException
	+ FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.GetItemComm
   and

ssh -V gives

OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5

OpenSSH feature is installed in control panel in optional features

Server OperatingSystem

Unknown. When I check remote SFTP version I get

SSH-2.0-XXXXX-SFTP-Proxy-1.4.6-0

Client OperatingSystem

Windows 10 Enterprise

What is failing

Seconds and milliseconds support

Expected output

Timestamp with seconds and milliseconds

Actual output

Is OpenSSH supports seconds and milliseconds?

Start by reproducing the reported timestamp output on Windows 10 Enterprise with OpenSSH_for_Windows_7.7p1 and the listed SFTP proxy, then compare it with the SFTP timestamp behavior expected by the issue. Done means establishing whether seconds and milliseconds are supported in this client/server combination and documenting or implementing the required behavior.