PHP | date_timezone_set() Function

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP date_timezone_set() Function.

The date_timezone_set() function accepts a DateTime object and a timezone object as parameters and, set the specified timezone to the given DateTime object.

Syntax

Following below is the syntax to use this function -

date_timezone_set($object, $timezone)

READ: PHP | date_time_set() Function

Parameter Details

Sr.No	Parameter & Description
1	object (Mandatory) This represents the DateTime object for which you need to set the timezone.
2	timezone (Mandatory) This is a TimeZone object representing the time zone you need to set to the DateTime object.

Return Value

This function returns a DateTime object. In the case of failure, this function returns the boolean value FALSE.

PHP Version

This function was first introduced as part of core PHP v 5.2.0 and, it works with all the later versions.

Example1

Following example illustrates the usage of PHP date_timezone_set() function -

<?php
   $date = date_create("25-09-1989"); 
   $tz = new DateTimeZone('Nigeria/Rivers');   
   $res = date_timezone_set($date, $tz);   
   print("Timezone: ".timezone_name_get(date_timezone_get($date)) );
?>

Output

When the above code is executed, it will produce the following result -

Timezone: Nigeria/Rivers

Example2

The following example below creates a DateTime object along with the timezone and, sets the time zone to another value -

<?php
   $date = new DateTime("25-09-1989", new DateTimeZone('Nigeria/Rivers')); 
   $res = date_timezone_set($date, timezone_open("Nigeria/Lagos"));   
   print("Timezone: ".timezone_name_get(date_timezone_get($date)) );
?>

Output

When the above code is executed, it will produce the following result -

Timezone: Nigeria/Lagos

Example3

Try the following example -

<?php
   $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 );
   $NewDateTimeZone = $dateTime->getTimezone ();   
   echo 'New timeZone is '. timezone_name_get ($NewDateTimeZone);
?>

Output

When the above code is executed, it will produce the following result -

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

READ: PHP | date_sunset() Function

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the PHP date() Function.

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