How to get diffreence between GMT time and any time zone in C++
<p>I want a soultion in C++ to get hours diffreence between GMT time and any time zone.
e.g.
This is in Java I want to make in C++</p>

<pre><code>// New York
Calendar c = new GregorianCalendar(TimeZone.getTimeZone("America/New_York"));  

// Alaska  
c = new GregorianCalendar(TimeZone.getTimeZone("America/Anchorage"));
// Difference between New York and Alaska  
</code></pre>

<p>Please tell me how I can get this time zone in C++</p>
