329 		'CAST' => 18000,

   329 		'CAST' => 18000,

   330 		'CAT' => 7200,

   330 		'CAT' => 7200,

   331 		'CCT' => 23400,

   331 		'CCT' => 23400,

   332 		'CDT' => -18000,

   332 		'CDT' => -18000,

   333 		'CEDT' => 7200,

   333 		'CEDT' => 7200,

   334 		'CET' => 3600,

   335 		'CET' => 3600,

   335 		'CGST' => -7200,

   336 		'CGST' => -7200,

   336 		'CGT' => -10800,

   337 		'CGT' => -10800,

   337 		'CHADT' => 49500,

   338 		'CHADT' => 49500,

   338 		'CHAST' => 45900,

   339 		'CHAST' => 45900,

   611 	/**

   612 	/**

   612 	 * Add a callback method to parse a date

   613 	 * Add a callback method to parse a date

   613 	 *

   614 	 *

   614 	 * @final

   615 	 * @final

   615 	 * @access public

   616 	 * @access public

   617 	 */

   618 	 */

   618 	public function add_callback($callback)

   619 	public function add_callback($callback)

   619 	{

   620 	{

   620 		if (is_callable($callback))

   621 		if (is_callable($callback))

   621 		{

   622 		{