Change system date/time from within Boot Camp

When one changes system date/time using Windows 8 x64 with Boot Camp 5.0.5033 running on MacBook Pro, the change does not survive reboot.

Steps to reproduce the issue:

1. Change system date and/or time to any arbitrary value under Windows;
2. Reboot the system back to Windows and notice that that the date/time reverted to its original value.

The reason for the question: MacBook Pro system clock can store wrong time (be ~ 15 minutes off in this case). After synchronization with NTP server time.nist.gov Windows would obtain correct system time, but only until next reboot.

There is no MAC OS X on this laptop, so one cannot use Apple native OS to keep system clock synchronized with etalon time on NTP server.

Can anybody else reproduce the problem (updated system date/time on Windows does not survive reboot) and is there any workaround that would allow Windows 8 x64 running under BootCamp 5.0.5033 in BIOS emulation mode to update system date/time in a way that would persist after reboot?

Somewhat inconvenient workaround is to boot the system in Internet Recovery Mode (by holding Command-R during system boot), launch Terminal and use date command to manually set the correct time that survives reboot.

Thank you.