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Some Apple Watch Series 4 Models Are Frequently Crashing and Rebooting Due to a Daylight Saving Time Bug (macrumors.com)

Some Apple Watch Series 4 owners in Australia experienced crashes and reboots on Saturday due to a bug that surfaced because of the daylight saving time change. From a report: According to Reddit users hit by the Apple Watch bug, the root of the problem appears to be the Infograph Modular face's Activity complication, which displays a timeline graph with hourly data for the user's Move calories, Exercise minutes, and Stand hours. When daylight saving time (DST) lops an hour off the typical 24-hour day, the Activity complication is apparently unable to compute the change and draw the timeline graph with only 23 hours, which throws the Apple Watch into an endless reboot loop until the battery runs out.

3 of 110 comments (clear)

  1. Re:Why now? by denbesten · · Score: 4, Informative

    DST doesn't end until November 4th.

    From TFA, "Some Apple Watch Series 4 owners in Australia". Australia DST started on Oct 7th. It will not end until April 7, 2019.

  2. Re:Whoopsie by ledow · · Score: 4, Insightful

    But you'd rather these people who can't use long-established timezone libraries, handling protocols and data formats did things like monitor your heart rate and ran your car instead?

    The problem here is not DST or the complexity of it... if that were the case the banking industry, Internet, phones, etc. would fall over at the same time because of the same problems.

    The problem is that someone at Apple doesn't understand how to handle dates properly despite there being long-established libraries for exactly that. And they didn't bother to check (i.e. test) adequately enough before releasing millions of dollars of mass-market products.

    The problem is lax development and testing. Not the complexity of handling something that billions of devices owned by billions of people around the world handle every year just fine.

  3. Re:Why now? by Ecuador · · Score: 5, Funny

    DST doesn't end until November 4th.

    Let me guess, you are an Apple developer?

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