为什么伦敦实时不同于服务器时间设置为...伦敦UTC + 0？

I have a really curious question for you about timezones...

This is what I did via PHP

<?php

echo date_default_timezone_get (); 

//prints Europe/London (the timezone is set to London's one)

echo date('G:i A');

//prints 14:43 PM

?>

Searching on Google and other websites related to timezones the result is:

14:18

So why PHP says 14:43 whereas Google and the others say 14:18?

There is a difference of 25 minutes!!