Where does PHP get the timezone from on Windows?

Question

PHP

There is a test machine with a web server under vin7 with the latest updates. There is PHP 5.4.30 which outputs in response to such a script

...
?><pre><? print_r(new DateTime()) ?></pre><?
...

displays

DateTime Object
(
[date] => 2014-11-10 18:42:52.000000
[timezone_type] => 3
[timezone] => Europe/Moscow
)

Although the system is now 17:42. How to force PHP to update timezone data?

Answer 1

I will answer myself - in version php 5.4.34 the problem is fixed

Answer 2

Is it the first line in the script? Maybe you have a time zone of +2, and above in the scripts somewhere it is written
ini_set('date.timezone' , "Europe/Moscow"); Then PHP can translate the time. Plus, another web server (IIS or whatever you have) can set the time. Go through the chain, see that the time zone matches everywhere. Also run in the console php -r 'var_dump(new DateTime());'