title: Adding days to an ADUsers AccountExpirationDate
body: <p>Please Note: I am a newbie to Powershell</p>
  <p>I would like to Get an ADusers AccountExpirationDate and Add 90days to the AD user's Expiration Date. Tried the</p>
  <pre><code>Get-ADUser -Identity $username | Set-ADAccountExpiration -TimeSpan 90.0:0
  </code></pre>
  <p>However, it adds 90 days to the current day under the AD user's account. Is there a way to specify adding 90 days to an <code>ADUser</code> <code>AccountExpirationDate</code>?</p>