CentOS - May 2007 - problem with centos 4.4 and the time´s pc

I install centos 4.4 in a serveraltos9100, every thing was ok, but the
watch?s time on the system is going very fast, the second goin very fast.
The time in the bios setup is ok, the time go fine, but when I booting the
centos 4.4 , the time is wrong, I repair with the command date, but minuts
later all is crazy again
Please I need help.

Note: the time Zone is ok, this is set correctly with my country zone


Este Mensaje se encuentra libre de Virus, 
Chequeado por MDaemon AntiVirus:
  AVirus: v2.2.7
  Fuente del motor de AV: Alt-N Technologies, Ltd (excellent)
  Versi?n del motor de AV: 4.0.1.14
Servidor de Correo "Hotel Tuxpan".Varadero.Cuba