Similar to the Deprecated Warning, you may see the following warning in your logs
PHP Warning: strtotime(): 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 'CET/1.0/no DST' instead in
/usr/share/cacti/include/global_constants.php on line 156
In this case, simply follow the directions. Set your timezone in /etc/php.ini
; Defines the default timezone used by the date functions ; http://www.php.net/manual/en/datetime.configuration.php#ini.date.timezone date.timezone =America/Regina