I got warning of date function as follow
<blockquote>
  <p>Warning: <code>date()</code> [function.date]: It is not safe to rely on the system's timezone settings. You are <em>required</em> to use the date.timezone setting or the <code>date_default_timezone_set()</code> function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. </p>
</blockquote>

<p>We selected <code>Asia/Calcutta</code> for <code>5.5/no DST</code> instead in <code>E:\xampp\htdocs\suraj\central_db_system\dwnld_reg_data.php</code> on line 8</p>

<p>And I resolved this warning by calling function</p>

<pre><code>date_default_timezone_set('America/Los_Angeles');
</code></pre>

<p>But each time I have to add this function on each page.</p>

<p>Is there any other way to resolve this problem?</p>
