Get-Date can extract valuable information from dates. All you need to know is the placeholder for the date part you are after. Then, repeat that placeholder to see different representations. For example, an upper-case "M" represents the month part:
PS> Get-Date -format 'M' March 02 PS> Get-Date -format 'MM' 03 PS> Get-Date -format 'MMM' Mar PS> Get-Date -format 'MMMM' March