2: strftime() [&lt;a href='function.strftime'&gt;function.strftime&lt;/a&gt;]: 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/Buenos_Aires' for 'ART/-3.0/no DST' instead<br />Archivo: /www/rinconmatematico.com/htdocs/foros/Sources/Subs.php<br />L&iacute;nea: 879