title: Modifying an ISO Date in Javascript
body: <p>I'm creating several ISO dates in a Javascript program with the following command:</p>
  
  <p><code>var isodate = new Date().toISOString()</code></p>
  
  <p>which returns dates in the format of <code>"2014-05-15T16:55:56.730Z"</code>. I need to <strong>subtract 5 hours</strong> from each of these dates. The above date would then be formatted as <code>"2014-05-15T11:55:56.730Z"</code></p>
  
  <p>I know this is hacky but would very much appreciate a quick fix.</p>