timezone_name_get($object)

<?php
   //setting the timezone
   tz = new DateTimeZone('Indian/Mahe');res = timezone_name_get(tz);
   print("Timezone: ".res);
?>

Timezone: Indian/Mahe

$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 = timezone_open ( 'America/Chicago' );
$dateTime->setTimezone( $DateTimeZone );   
echo 'New timeZone is '. $DateTimeZone->getName ();

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