Plugging in this date will permanently crash your iPhone

Posted: February 14, 2016 in Uncategorized
Tags:

iphone

by David Goldman

Your iPhone really hates the date January 1, 1970. It hates it so much that it will permanently crash if you change your iPhone’s time settings to that date.

It’s not totally clear why the crash is happening. It’s not at all obvious why anyone even bothered trying to set an iPhone’s clock back 46 years.

But we can make a pretty educated guess.

January 1, 1970 is the earliest date you can set your iPhone to. If you turn your date and time settings to manual (please don’t do this), and scroll the calendar back as far as you can go (seriously, don’t do this), you can only go as far back as January 1, 1970.

That’s because Unix time began at midnight GMT on January 1, 1970. Unix time has been counting every second since then. Many gadgets, including the iPhone, use Unix time as the basis for their clocks.

Now, why would scrolling all the way back to January 1, 1970 (00:00:00 in Unix time) turn your iPhone into a brick? If your time zone isn’t GMT, your iPhone might think you’re in a time before January 1, 1970 — or before zero. Though Unix time can be negative, it’s possible that something about that makes your iPhone go haywire.

http://money.cnn.com/2016/02/12/technology/iphone-date-bug/index.html

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