title: Compare iOS Time Zone Rules
body: <p>If the user is in Eastern time, I don't want to display "EST" or "EDT" but if they are not, I do want to display it.</p>
  
  <p>Is there an easy way to compare TimeZone rules in iOS?</p>
  
  <p><code>[NSTimeZone localTimeZone]</code> returns America/Indianapolis, but I just want to know if it is eastern.</p>
  
  <p>Comparing data does not work, do I just compare <code>secondsFromGMT</code>?</p>
  
  <p><strong>EDIT</strong>
  Comparing offsets does seem to work, but I don't know if it is going to cause problems later?</p>