Lots of people saying "works for me" but I can corroborate your experience; just flew Tokyo to Florida and didn't notice until the second day that my calendar app thought it was the wrong time and my menu bar clock was wrong. Opening the Date & Time fixed it.

So like a lot of bugs, this is probably one that happens "to some of the people, some of the time".

(Latest OS X 10.11 on latest-model MacBook Pro.)