title: Convert day of year value to date in Powershell
body: <p>In Powershell, converting a date into a day of the year value is easy:</p>
  
  <pre><code>$DayOfYear = (Get-Date).DayofYear
  Write-Host $DayOfYear
  140
  </code></pre>
  
  <p>Is there a similar way to convert the day of year back into a date (i.e. 140 = 05/20/2013)?</p>