PHP 5.3 now requires that we all have a specific timezone set, either by date.timezone or date_default_timezone_set();

If neither of these are set, we get a few WARNING error like the following:

Warning: date() [function.date]: 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
To fix this, simply add the following line of code to your php.ini file:

Code:
date.timezone="America/New_York"
You can also define date_default_timezone_set setting before date.timezone function:

was
Code:
echo  date('Y-m-d H:i:s', time());
now
Code:
date_default_timezone_set('UTC');
echo  date('Y-m-d H:i:s', time());