Linux + Windows dual-boot... time messes up when switching OS
 

I have Windows and Linux (Fedora Core 9) installed, dual-boot, on my laptop. I primarily use Windows (Vista...), but I sometimes switch over to Linux.

Whenever I run Linux, my system time gets offset by around 5 hours, forcing me to manually adjust the time every time I boot Linux.

How do I fix this?

You can use either local time or Greenwich Mean Time. You are probably using a mixture of the two. Get your BIOS, Linux, and Windows all using the same time and the problem should go away.

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Steve Stites

They call Greenwich Mean Time "UTC". Somewhere, you probably have a setting saying to use UTC or told it during installation that your system was using UTC (I'm not sure what Fedora says, but I inadvertently did this when installing one of the distros I've looked at), when your system is really using local time. If you have a scout around, you might find something to uncheck regarding using UTC.

Fixed it with that method, thanks.

Details for people who need the info in the future:
1. Go to Adjust Time in Linux
2. In one of the tabs there, disable the UTC checkbox option.