Warning: date()

Warning: date(): It is not safe to rely on the system's timezone settings.

Solution #1:

add the following to /etc/php.ini

[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = America/New_York

then restart Apache

Solution #2:

In your php code add this line before any calls to date date_default_timezone_set('America/New_York'); not from the east coast? Just google all the available time zones 
such as date_default_timezone_set('Africa/Lagos');


Solution #3:

at the top of your index.php add

if( ! ini_get('date.timezone') )
{
date_default_timezone_set('GMT');  //or change to whatever timezone you want
}