PHP - Function timezone_open()



timezone_open ( $timezone )

DateTimeZone::__construct ( $timezone );

Definition and Usage

These functions return new DateTimeZone object.

The above two functions are equivalent and any of the functions can be used as shown below in the example.


Parameter Description
timezone Time zone identifier as full name (e.g. Europe/Prague) or abbreviation (e.g. CET).

Return Value

Returns DateTimeZone object on success or FALSE on failure.


Following is the usage of this function −

   $dateSrc = '2007-04-19 12:50 GMT';
   $dateTime = date_create( $dateSrc);
   $DateTimeZone = timezone_open ( 'America/Chicago' );
   date_timezone_set( $dateTime, $DateTimeZone );
   $NewDateTimeZone = date_timezone_get($dateTime);
   echo 'New timeZone is '. timezone_name_get($NewDateTimeZone);
   echo "\n";

   # Using second function.
   $dateTime = new DateTime($dateSrc);
   $DateTimeZone = new DateTimeZone( 'America/Chicago' );
   $dateTime->setTimezone( $DateTimeZone );
   $NewDateTimeZone = $dateTime->getTimezone ();
   echo 'New timeZone is '. timezone_name_get ($NewDateTimeZone);

This will produce following result −

New timeZone is America/Chicago
New timeZone is America/Chicago