(Note: Keep take backup of file before making any changes.)

1. Go to "php.ini" file and open in any editor.

2. Find below code

   [Date] ; Defines the default timezone used by the date functions ; https://php.net/date.timezone date.timezone=Asia/Kolkata (Set your desired time zone)

3. Find below code in same php.ini file (at the end of file)

   [Date] date.timezone=Asia/Kolkata (Set your desired time zone)

4. Do restart the WAMP/XAMPP Server.

5. Open "phpinfo.php" file & check "Default time zone".