Possible Duplicate:
Why does time change in Ubuntu after installing Windows
I have a dual-boot pc (ubuntu/Windows 7). When I boot with Ubuntu my local time (Rome fuse) is correct. But when i boot with wimdows my time is one hour slow. How can i solve this problem?
You can fix this by either asking windows to set the hardware clock with UTC, or Ubuntu to use localtime.
To make the change in Ubuntu, edit edit /etc/default/rcS and change
UTC=yes to no, like this:
# assume that the BIOS clock is set to UTC time (recommended)
UTC=no
See:
https://help.ubuntu.com/community/UbuntuTime#Multiple_Boot_Systems_Time_Conflicts
