PHP error "It is not safe to rely on the system's timezone settings." when using $_GET

I'm getting the error that many have seen when upgrading from PHP 5.2.9 to PHP 5.3.0, but oddly, the error is showing up as the result of a reference to a $_GET variable, not anything to do with a timezone setting.

Here's the error:

Warning: date_default_timezone_get(): It is not safe to rely on the system's timezone settings. You are required to use the date.timezone setting or the开发者_开发问答 date_default_timezone_set() function.

Has anyone else seen this same thing, and found a way to resolve it without simply changing the error_reporting level?

Thanks.

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I also had that error, when I upgraded from PHP 5.2 to PHP 5.3. I solved that by setting the corresponding server timezone in my php.ini:

date.timezone = "Europe/Berlin"

Following http://php.net/manual/de/function.date-default-timezone-set.php, since PHP 5.3 a E_WARNING is thrown if the timezone was not set.

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I had to use lower case for "PHP Version 5.5.3-1ubuntu2.1":

date.timezone = "america/new_york"