I've run ClamXav and kept Sentry running, thinking I might have "acquired" a virus. But nada. And the only reason I've noticed the bug is that it switches my Mac into "night shift mode" whenever this occurs. At any rate, my 15" late-2013 rMBP glitches at least a few times a day, where the date and time momentarily switches to Thursday, December 5 - then switches back before I can click in to even find out what year is associated with it. 5 hours is also added to the time. So, today - Mon Aug 22 5:47PM switched to Thu Dec 5 10:47PM, momentarily activating "night shift mode" - then switched back. Anyone else experienced this? My primary concern is that I'm obviously not taking advantage of my time traveling experience - and thinking I should possibly open up a day trading account? Brokerage tips? Thanks very much for any advice. If any gurus happen to glance at this, my computer is set to automatically update the date and time, if that's important?