You probably need to put the timezone in a configuration line in your php.ini
file. You should have a block like this in your php.ini file:
[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = America/New_York
If not, add it (replacing the timezone by yours). After configuring, make sure to restart httpd (service httpd restart
).
Here is the list of supported timezones.