converting date to GMT 0
<p>How to convert date of different timezones to GMT 0? Let say I have dates like this</p>

<pre><code>Fri Jan 20 2012 11:51:36 GMT-0500
Fri Jan 20 2012 11:51:36 GMT-0300
Fri Jan 20 2012 11:51:36 GMT+0500
</code></pre>

<p>to </p>

<pre><code>Fri Jan 20 2012 06:51:36 GMT
Fri Jan 20 2012 08:51:36 GMT
Fri Jan 20 2012 16:51:36 GMT
</code></pre>

<p>these are dates I am getting via <code>new Date().toString()</code> on different timezones. Is there any js method to detect timezone and convert accordingly?</p>
