I choose the drive to boot to from the computer Bios. When i boot into Windows my clock time changes, about 5 hours.I have another computer with Ubuntu 10.10 installed, but it will not install on this computer, Debian Did. Ubuntu gave me a command to fix this and it worked. However the Debian computer will not accept that command, Which is
open a terminal from the menu applications accessories and type
gksudo gedit /ect/defaults/rcs
in this configuration change the row UTC set it as:UTC=no
save and reboot and then set the clock. [It was set to yes]
Any help will be appreciated.
I am not sure i have this in the right place, the is my first post.
Boris

What you can do is boot into linux, either distro, and use hwclock to sync the BIOS time settings.

The file in question is /ect/defaults/rcS. That small difference means a totally different file in linux terms.

Some theory so as you understand what you are going to do and how.
Windows assumes the bios clock is in local time. Linux on the other hand assumes it is on UTC, so it adds/substracts some hours so as to get its clock to your local time.
This behavior is controlled by the UTC=yes/no parameter in /ect/defaults/rcS. Set it to no and linux assume the bios clock is on local time, so no change when you reboot to windows and the opposite
On windows this setting is somewhere inside the registry.

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Thank you very much for the information. It helps me understand.
Boris