How to output file creation time with milliseconds with PowerShell?

Question

I am trying to output file creation time with milliseconds using PowerShell.

This works but only outputs seconds:

Get-ChildItem *_971*.* -Force | Select-Object FullName, CreationTime

If I try to format the timestamp like this:

Get-ChildItem *_971*.* -Force | Select-Object FullName, CreationTime.ToString('yyyyMMdd HH:mm:ss.fff')

I get an error:

Select-Object : A positional parameter cannot be found that accepts argument 'yyyyMMdd HH:mm:ss.fff'.
At line:1 char:33

Answer 1

You need to use a calculated property to evaluate the expression CreationTime.ToString('yyyyMMdd HH:mm:ss.fff') over each pipeline item:

Get-ChildItem *_971*.* -Force |
    Select-Object FullName, @{ N='CreationTime'; E= { $_.CreationTime.ToString('yyyyMMdd HH:mm:ss.fff') }}