title: Storing timezone in a database
body: <p>I will be using MySQL and PHP and need to store the timezone in the DB.  Spent a bit reading up on it, and it seems like I need to use something like <code>America/Los_Angeles</code>, and not <code>PST</code>, <code>Pacific Standard Time</code>, <code>PST8PDT</code>, <code>+02.00</code>, etc.</p>
  
  <p>Do I store the whole <code>America/Los_Angeles</code> string, or is there some sort of integer ID for it such as <a href="https://stackoverflow.com/a/11580459/1032531">https://stackoverflow.com/a/11580459/1032531</a> describes for c#?  If the who string, what is the maximum number of characters?</p>