[update: apparently Android suffers from this flaw, too! see post #10] This morning I reported an iOS bug to Apple feedback. Our group recently moved to a different building with absolutely no service. Verizon works because we have repeaters but At&t was totally and completely dead. This meant my iPhone was out of cell range for close to 8 hours yesterday. I had a doctor appointment at 4pm and I glanced down at my Apple watch and saw it was only 2pm. Plenty of time or so I thought. Then I decided to check the time on my work-issued Samsung phone and sure enough it was really 3pm! Needless to say I had to rush to make my appointment across town. It turns out that if iOS 8.4.1 on iPhone 6 (and 6+) loses cell service for an extended period, it randomly changes your time zone for you. My buddy in the next aisle had his iPhone 6 plus change all the way to Pacific time. As a workaround, I've switched of automatic time zone in settings->date and time but now I have to micromanage my time zone setting when I travel. It's always nice to have the correct local time as soon as they airplane lands and they let us switch back on our phones. What makes this worse is the error propogated from my iPhone 6 to my Apple watch so I had two devices trying to convince me it was 2pm at 3pm. My friend also has an Apple watch and he experienced the same issue. Both his iPhone 6+ and Apple watch were running 3 hours late. Hopefully Apple fixes this. As far as a software requirement is concerned, I would say they should never change your time zone in the absence of a strong cell signal. If that means I don't get the new time till my plane gets to the gate then fine. That's better than getting the WRONG time just because my building is completely shielded from At&t towers! I'll only leave the poll running for 2 weeks. I doubt Apple will fix this by then but I'm curious how widespread this issue is. The agent I chatted with on Apple Support had never heard of this before. To me this is a glaring flaw for a device that is first and foremost sold as a timepiece, even if it is rather rare.