"i now have suse 9.1 an the clock can be set with kde, but after reboot its not even the right gmt ."
Use the hwclock command to set both the hardware clock and the system clock. First set the hardware clock. Then set the system clock to the hardware clock. After a few days do it again and you should have both the correct time and an accurate clock. See:
Be prepared. Create a LifeBoat CD.