Canadian iPhones have switched from DST a week early and it's chaos

iPhone 12 Pro
iPhone 12 Pro (Image credit: iMore)

What you need to know

  • Canadian iPhone owners have seen their devices ditch DST too early.
  • Canadian Daylight Saving Time ends next week, but some iPhones have turned the clock back an hour today.

Canadian iPhone owners have awoken to handsets that can't tell the time this morning. As reported by people across social media, iPhones appear to have brought an end to Daylight Saving Time almost a week early — the switch shouldn't happen until next Sunday.

Notably, the problem only seems to be impacting some carriers, suggesting that the problem might not be Apple's to fix.

The issue seems to be impacting all kinds of iPhone, not just the latest and greatest iPhone 13.

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Some people have been able to fix things by heading into the Settings app and toggling the automatic time setting off and back on.

This isn't the first time that an iPhone has suffered from an issue like this and it is unlikely to be the last. It's the first time I can remember the problem being carrier-specific, however. Oftentimes it's related to a specific version of iOS or, on the occasions it's impacted Apple Watches, watchOS.

Today's issue will of course have caused some alarms to trigger an hour earlier than they should have, unfortunately. Still, that's better than them triggering an hour late! Really need to wake up on time? Maybe checking out our list of the best clock radios would be a good idea — there's little to go wrong with those!

Oliver Haslam

Oliver Haslam has written about Apple and the wider technology business for more than a decade with bylines on How-To Geek, PC Mag, iDownloadBlog, and many more. He has also been published in print for Macworld, including cover stories. At iMore, Oliver is involved in daily news coverage and, not being short of opinions, has been known to 'explain' those thoughts in more detail, too.

Having grown up using PCs and spending far too much money on graphics card and flashy RAM, Oliver switched to the Mac with a G5 iMac and hasn't looked back. Since then he's seen the growth of the smartphone world, backed by iPhone, and new product categories come and go. Current expertise includes iOS, macOS, streaming services, and pretty much anything that has a battery or plugs into a wall. Oliver also covers mobile gaming for iMore, with Apple Arcade a particular focus. He's been gaming since the Atari 2600 days and still struggles to comprehend the fact he can play console quality titles on his pocket computer.

  • "So, how are the carriers over-writing the internet-based time settings on the phones?" They're not. The setting is to get it automatically. If what is sent is wrong, then the phone just displays that. In the US we have some states that do and some that don't do DST. Even some cities/towns within states differ. It is entirely possible to be in one DST state and pick up a tower from a non-DST state and have your time change. The solution is get rid of the stupid DST thing all together.
  • Note that Europe switched to DST last Sunday. The change is the last Sunday of October. Perhaps th is is part of the problem.