End user is currently running MAC OS X mavericks with Parallels 9, the VM is Windows 8.1. I am currently seeing an issue where the time is completely off from the MAC not just by hours but wrong minutes as well. I have updated both the MAC OS the Parallels application as well as the windows OS. the MAC is pointing to apples default time sync location parallels is set to pull from the MAC OS. Yet I'm still occasionally seeing differences in the times, it seems to be for no specific reason. I have found articles related to running a MAC OS X VM and having that issue but not for Window 8.1.