Hi!
I had this thing a lot, and saw that there is nothing about it in the group, so I'll like to share it.
Every time when I'm doing dual boot, or live cd, and gets back to windows, the windows's clock is 2 hours back, I could tell thanks to my Smartphone.
And it is very annoying to set the clock 2 hours forward again and again, so I found a good solution for this: