PHP | timezone_offset_get() Function

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The timezone_offset_get() function is an inbuilt function in PHP which is used to return the timezone offset from GMT. The date time object and the date-time are sent as a parameter to the timezone_offset_get() function and return the timezone offset in seconds on success or False on failure.

Syntax:

int timezone_offset_get( $object, $datetime )

Parameters: This function accepts two parameter as mentioned above and described below:

$object: It is a mandatory parameter which specifies the DateTimeZone object.
$datetime: It is also a mandatory parameter which specifies the date/time from which the offset has to be computed.

Return Value: It returns the timezone offset in seconds on success or False on failure.

Exceptions: The timezone_offset_get() function is an alias of DateTimeZone::getOffset() function.

Below programs illustrate the timezone_offset_get() function in PHP:

Program 1:

<?php 
  
// Open the timezone of America/Chicago 
$timezone = timezone_open("America/Chicago"); 
  
// Displaying the offset of America/Chicago and Europe/Amsterdam 
$datetime_eur = date_create("now", timezone_open("Europe/Amsterdam")); 
echo timezone_offset_get($timezone, $datetime_eur); 
?> 

Output:

-18000

Program 2:

<?php 
  
// Open the timezone of America/Chicago and Europe/Amsterdam 
$timezone_chicago = new DateTimeZone("America/Chicago"); 
$timezone_amsterdam = new DateTimeZone("Europe/Amsterdam"); 
     
$chicago = new DateTime("now", $timezone_chicago); 
$amsterdam = new DateTime("now", $timezone_amsterdam); 
  
// Calculating the offset between the timezones    
$Offset = $timezone_amsterdam -> getOffset($chicago); 
  
// Dumping the offset variable 
var_dump($Offset); 
?> 