Every hour the time on the Windows VM is changed, so it's 2 hours in-front of OS X time. After exactly one minute the time is corrected. Eg. at 08:10 the time is changed to 10:10. After exactly one minute it's changed back to 08:11. After one hour at 09:11 the time is changed to 11:11 and stays there for one minute etc. etc. The first time it jumps is right after booting the VM. I've tried all the Time settings in the Parallels Advance option, but this will not correct the problem. I've also tried to disable the Internet Time Synchronization in Windows. I'm running Windows 8 on Parallels 8 with all updates. I'm using my Boot Camp partition to run parallels. Which means that I've also installed the Apple Boot Camp drivers on my VM. Except for the Time issue, I have not had any problems with this. I've almost never boot directly from Boot Camp though, but I like the idea. Are there any settings here that could be the cause? I've contacted Parallels support (Ticket 1653127), who did a remote session on my machine. But boy... this was a waste of time, which is why I'm asking here. He didn't do anything.. and I'm not sure he fully understood my problem, cause he advised me to boot from Boot Camp to solve my problem - why would I need Parallels then? To please him, I did try to boot from the Boot Camp partition and work there for a few hours. I guess this properly has something to do with daylight saving and UTC time. In Denmark we are one hour in front of UTC time (in the winter), and 2 hours in front in the summer time. If anyone knows how to fix this, I will be very happy.