MBP Clock Issue OSX Mavericks

Question

I assume this has something to do with timer coalescing in OSX Mavericks, but intermittenly when waking from Sleep the clock will remain at the time I closed the lid and will not update.  The only way to "force" the update is to open Date & Time Preferences, at which point the computer will realize the issue and correct.  However, if I close Date & Time preferences too quickly after it has correctly adjusted the time, it will revert back to the earlier, incorrect time. 
I have several applications that I use constantly (Parallels 9, iMessage, Twitter, iTunes) that I have tried to systematically stop using one by one to find the issue, but the problem persists.  This only started happening since the Maverick's update.
I'm on a late 2012 MBP, non-retina, 750GB HDD, i7 processor.

Answer 1

So, more information- issue is not related to computer "Sleep".  Today (again while traveling, all within same time zone).  Opened computer- time was accurate.  After about an hour of working, time reverted back to 6:05AM.  it is actually 11:06AM. 
Computer has not slept- machine is set to automatically updated by internet, Apple American server, automatic timezone is off (toggled it before the holiday to try to see if that helped).
When I opened date and time preferences- the time immediately corrected itself.