Running cake setup gives this error on some systems:

Warning Error: 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. We selected 'America/Los_Angeles' for 'PST/-8.0/no DST' instead in [/Applications/MAMP/htdocs/r459/trunk/lib/Cake/Model/Model.php, line 1665]

2013-02-25 12:58:48 Warning: 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. We selected 'America/Los_Angeles' for 'PST/-8.0/no DST' instead in [/Applications/MAMP/htdocs/r459/trunk/lib/Cake/Model/Model.php, line 1665]
Warning Error: 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. We selected 'America/Los_Angeles' for 'PST/-8.0/no DST' instead in [/Applications/MAMP/htdocs/r459/trunk/lib/Cake/Model/Model.php, line 1665]