Boot up and leave your BIOS date where it is.
Once the OS is up, disable UTC and enable NTP for your OS clock.
No idea which DE you are using. Gnome/KDE/???
I think the following should work to change from UTC to NTP
From a terminal
exit and then from a terminal logged in as root
# chkconfig ntpd on
# ntpdate pool.ntp.org
# service ntpd start
Reboot, set your BIOS clock to the current date and time and see what happens.