How to get the Time Zone from IP address in PHP?

Using below PHP script, we can get the time zone based on IP address:

$ip = '192.168.11.121';  # any working IP address

$ipContent = file_get_contents('http://ip-api.com/json/' . $ip);

$ipJsonInfo = json_decode($ipContent);

$timeZone = $ipJsonInfo->timezone;

#Print the $timeZone

echo $timeZone;

Here, also can set this time zone as default using below function:
date_default_timezone_set($timeZone);