title: change the Javascript's getTimezoneOffset to return a different time zone offset?
body: <p>Is there a way to change the Javascript's getTimezoneOffset to return a different time zone offset?</p>
  
  <p>Fox example,my local time zone is GMT-8,but i want the Date.getTimezoneOffset() to return GMT-1,so i do this as follow:</p>
  
  <pre><code>var timeZone1 = new Date(Date.parse("2011-01-01T00:00:00-01:00"));
  document.write("The local time zone is: GMT " + timeZone1.getTimezoneOffset()/60);
  //show:The local time zone is: GMT-8
  </code></pre>
  
  <p>so,How to make it shows GMT-1?</p>
  
  <p>Refference links:</p>
  
  <p><a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset" rel="nofollow">https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset</a></p>