Ajuda erro em site em login Ola ja procurei por tudo e ja tentei de tudo recorro a os amigos do tk

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Strict Standards: date() [function.date]: It is not safe to rely on the system's timezone settings. Please use the date.timezone setting, the TZ environment variable 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/Sao_Paulo' for '-2.0/DST' instead inC:\xampp\htdocs\classes\account.php on line 189

 

 

como resolver isso,agradeço des de ja.

[Kimoszin 1160]

http://stackoverflow.com/questions/16765158/date-it-is-not-safe-to-rely-on-the-systems-timezone-settings-in-codeigniter

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Kimos vo tentar,mas caso n conciga eu agradeço des de ja a sua ajuda e atençao,Grato amigo!

Rep+ ja pela boa vontade!