I've php 5.3.8 and Typo3 4.5.5 installed on my new webserver with lighttpd but now I'm getting this warning. My OS is a Suse 12.2 64 bit.
FastCGI-stderr: PHP Warning: date() [<a href='function.date'>function.date</a>]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /htdocs/XXXX/t3lib/class.t3lib_div.php on line 5968