Change your timezone

# mv /etc/localtime /etc/localtime.backup
# ln -s /usr/share/zoneinfo/Europe/Brussels /etc/localtime

You need to substitute the lines in bold with your actual current timezone. That will change the timezone in the current session and should prevail upon reboots. To be absolutely certain, edit the file /etc/sysconfig/clock as well. That’s the file that will be read on boot the determine the timezone.