clock 5 hours ahead

[kold]

Every since I installed linux(ubuntu) on my system my windows clock has been 5 hours ahead of the real time, but the clock in linux is always correct.

Could my linux install be affecting my clock in windows like this?

[oz]

It sounds like you might be set up for UTC time rather than local. Have a look here to see if this helps:

http://www.linuxsa.org.au/tips/time.html

[kold]

I tried this but my system clock and the time in linux are correct, but for some reason sever since i installed linux my windows clock is 5 hours ahead.

Could this be completely unrelated to the linux install?

[vidd]

it is 100% related to your install of linux

by setting your system to UTC (Greenwitch Mean Time) your BIOS clock was advanced to EST +5 and your Linux system, which knows you are using UTC displays UTC -5 (which = EST)

Windows, on the other hand reads the time from the BIOS and only displays it, it does not format it in any manner.

The cure is quite simple:
in linux (Ubuntu)-
1)Right-click on the clock
2)choose "Preferences"
3)remove the check next to "Use UTC"
4)adjust the time to display the correct local time
5)reboot into windows
6)verify that the time is now correct (or correct it here as changes made in windows directly affect the clock in the BIOS)