OS X 10.11 El Capitan GMT time issue I upgraded to OS X 10.11 El Capitan Gold Master last week, and ever since I've been having weird time issues. All of Apple's apps think the time is the correct Pacific Time zone that I'm in, but third-party web apps and other tools don't think the time is correct. Among them are Slack, Intercom, and a few other team communication tools I use.

I then resorted to Terminal, using the date command. Unfortunately, I found an issue: It reports the time is seven hours ahead of what it's supposed to be. I've tried a lot of random troubleshooting, looked in Console for errors, set the time manually, and all that other boring nonsense. I have no idea what's going on. I would love help troubleshooting this if you guys have any suggestions at all.
I have a simular issue.   Only on start up/reboot MBP defaults to PST.  I go to Preferences and as soon as I unlock padlock it reverts back to EST.