om joshi - 2011-03-07

Hi, i am getting following error message after installation.
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 'Europe/London' for '0.0/no DST' instead in C:\AppServ\www\appointment\functions.php on line 67
this appears on various lines.

could you please help me with the solution.