iPhones hit with Daylight Savings Time bug

iPhone New Zealand is reporting that New Zealand based iPhones aren't playing alarms at the correct time after the Daylight Savings Time change during the weekend. 

According to the site, an alarm set for 5:55 am went off at 4:55 am instead, and there are a steady stream of users on Twitter experiencing the same issue. The issue only seems to affect iPhones running iOS 4.1, and affects recurring alarms, even if the time is set correctly.

Steve of iPhoneNZ writes:

At first I thought that there must be a system-wide issue causing all alarms to go off an hour early, so to test the theory at 5:42am this morning I set an alarm for 6:43am expecting it to go off an hour early. 5:43am came and went with no alarm. I then set an alarm for 5:45am and it went off at the right time!

To be completely thorough I then tried the same setup again but this time with it set to repeat daily. This time, the alarm did go off an hour earlier than it was set for. So it seems we can narrow this issue down to repeating alarms only. But for how long? Forever? Until the US comes out of daylight savings? Until iOS 4.2? Until iOS 5?!

It's worth noting that some people are only commenting to say that they didn't have issues, so the issue doesn't seem to affect all iOS 4.1 devices, and that alarms work fine in older devices.

Neowin has reached out to Apple for comment but has not received a response as of writing.

Has this happened to you? Let us know in the comments!

Image & Video Credit: iPhone New Zealand

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"Just don't set alarms that way." - Steve Jobs

Remember when the iPod folks were ragging on Zune for it's DST issue a few years ago? Well, you know what they say about payback...

Yeah I have this same issues. Not only does it mess up the alarm, it also messes up the calendar.. beware if you set appointments manually . If you sync your calendar from your PC/MAC.. it works fine. If you enter this manually.. it does cause a problem..

I hope there is a fix soon!

Today we'd like to introduce our latest feature.... DST... it's going to revolutionize the world, it's magical, fast, and happens once a year.... and I really think you are going to love it


seriously, are we really doing all this trolling? MS had similar bugs

neufuse said,
Today we'd like to introduce our latest feature.... DST... it's going to revolutionize the world, it's magical, fast, and happens once a year.... and I really think you are going to love it


seriously, are we really doing all this trolling? MS had similar bugs

But apple "does not" have bugs. Any feature that does not work as planned is the user's fault acording to the Jobs. :L

Odom said,
So what? At least they'll be on time to for work. Imagine the alarms went off an hour later...

Of course, if we are at the other end of DST, people MIGHT be one hour late. Dodged a bullet maybe. Who knows with glitches.

scorpio_on_blue_moon said,

Yeah, that "feature" coming in next release...

They'll probably call it "built-in safety margin" feature :-)

I thought thats why these things were $750 instead of $75 - thought you paid for quality software, guess not? just that lil' apple to be on the back huh? I know that the bug must have been introduced in a later forced firmware.. the 3G running 3.1.2 had no such issues - it just sucked when you ran out of space or the battery faulted.

hotdog963al:
Ever have a power outage? real alarm clocks fail HARD. guess its better to get up an hour early than not at all.

Ruciz said,
Ever have a power outage? real alarm clocks fail HARD.

Youth is wasted on the young. I guess you don't remember that there used to be (and still are, if you look around) alarm clocks that don't depend on this newfangled "electricity".

Arrgh, too many devices have day light savings issues.

Just abolish the damned practice and leave our clocks alone. Then none of this would happen ever again.

necrosis said,
Yes their raciest laws are fantastic.

For the record, the law discriminated based on nationality - not race. The biggest danger was that it opened the door for detaining anyone, regardless of nationality, until their nationality could be determined. If they don't like you, that could be a long time. On the bright side, laws as broad as that don't tend to last very long.

TRC said,
Daylight Saving Time (not savings time) is a stupid outdated concept that needs to go away.

Ah, thank you for the correction; I was hoping someone would notice that. And I agree too!

Given NZ has one time zone, and I don't believe their DST has changed dates in years. This is going to be a iPhone issue. Not Vodafone, Telecom or 2D.

Nashy said,
Given NZ has one time zone, and I don't believe their DST has changed dates in years. This is going to be a iPhone issue. Not Vodafone, Telecom or 2D.

I will blame Telecom anyway for the hell of it. Must be their fault.

AT&T time set on their towers here sucks! It always bounces around incorrectly . I called AT&T and they said that I'm probably picking up the time from a neighboring time zone...but..I'm right smack in the middle of mountain time. Their reply "oh, we'll look into that".

I just have my phone set to manual date and time and not auto. How does anyone know for sure that this is an iPhone bug and not a provider bug in NZ?

Lazlo said,
Neowin: Where a timezone bug gets 50 comments.

Apple: Where the cause of the comments came from in the first place.

Lazlo said,
Neowin: Where a timezone bug gets 50 comments.

A similar time bug on the Zune led to 163 comments on Neowin nearly 2 years ago. We're getting lazy!

I use alarm clock pro and it doesnt effect it so it must be a bug in the apples clock app and not the phone itself.

alarm clock pro just added weather and i am amazed people use the alarm in the built in program at all.

Everyone's prone to time related bugs. Dealing with time in software is always a mess - daylight savings time happens at different times in different places, or not even at all. Some time zones are half an hour off (like mine, can't imagine how many issues I've had with buggy software because of that), then there's leap years...

Anyone remember that time that all the Zune's in the world were totally bricked for a day because of an issue related to it being a leap year?

At least the alarms are going off an hour early instead of an hour late. Undoubtedly Apple will fix this pretty quickly. If the world ran on some sort of logical time system, this wouldn't have been a problem

Simon said,
Everyone's prone to time related bugs. Dealing with time in software is always a mess - daylight savings time happens at different times in different places, or not even at all. Some time zones are half an hour off (like mine, can't imagine how many issues I've had with buggy software because of that), then there's leap years...

Anyone remember that time that all the Zune's in the world were totally bricked for a day because of an issue related to it being a leap year?

At least the alarms are going off an hour early instead of an hour late. Undoubtedly Apple will fix this pretty quickly. If the world ran on some sort of logical time system, this wouldn't have been a problem


Lets make it happen: http://en.wikipedia.org/wiki/Swatch_Internet_Time

Simon said,
Everyone's prone to time related bugs. Dealing with time in software is always a mess - daylight savings time happens at different times in different places, or not even at all. Some time zones are half an hour off (like mine, can't imagine how many issues I've had with buggy software because of that), then there's leap years...

Anyone remember that time that all the Zune's in the world were totally bricked for a day because of an issue related to it being a leap year?

At least the alarms are going off an hour early instead of an hour late. Undoubtedly Apple will fix this pretty quickly. If the world ran on some sort of logical time system, this wouldn't have been a problem


I agree - the reason this keeps happening (yes, Windows has been struck with this sort of thing before too, and people bashing Apple are all ignorant) is because DST isn't a logical thing from a computer's perspective. So you need to program them in, and to make matters worse, they're different from country to country. All it takes is one oversight for one country, and lots of people are afffected.

Thanks for a balanced and informed post here.

Northgrove said,

and to make matters worse, they're different from country to country.

And worse than that is the fact that in recent years, lots of countries have been playing around with the time change dates from one year to the next. Its nearly impossible for any software company to keep up with each and every change.

perochan said,
how lazy can ppl get... just manually set the clock forward 1 hour... omfg...

500 dollar phone should do that for me , hell a 5 dollar phone should...

perochan said,
how lazy can ppl get... just manually set the clock forward 1 hour... omfg...

What do you mean? What if it doesn't happen again tomorrow? If you just blindly set the clock forward 1 hour, you might end up 1 hour late the next day.

ccoltmanm said,
These comments are becoming digg like. Please don't incorporate a thumbs up mode.

lol, if I could give you a thumbs up I would, becuase I hate digg.

This can't be worse than what happened to me.
One day, I went out as normal, with my iPod Touch in my pocket.
Upon returning home, I found that it had suddenly changed Time Locations to Cupertino. I live in Toronto, Canada Dx.
It hasn't happened again, but that was weeird.

my iphone has been doing this for AAGES!
ive had to turn off the automatic updating of time.
as if i turn it on it puts the clock an hour wrong! I have notified apple.

PS: im in the UK

rusonjitsu said,
my iphone has been doing this for AAGES!
ive had to turn off the automatic updating of time.
as if i turn it on it puts the clock an hour wrong! I have notified apple.

PS: im in the UK


Strange im in the UK, ive neva had this problem. are you sure your just not setting the alarm wrong?
My clock when on Set Auto is 50 seconds fast.
Not that 50 seconds is a problem

Gothic_Rebel said,

Strange im in the UK, ive neva had this problem. are you sure your just not setting the alarm wrong?
My clock when on Set Auto is 50 seconds fast.
Not that 50 seconds is a problem

I have had the alarm set daily for the past 3 years. Never had the problem.

SoLoR1 said,
whole 1 hour wrong... when 98% of people are sleeping... oh the drama!

They can be thankful it doesn't come on an hour LATE instead of early. That would actually cause problems.

SoLoR1 said,
whole 1 hour wrong... when 98% of people are sleeping... oh the drama!

It was actually 2 hours early due to daylight saving, and for most people that is 25-33% of their sleep cycle. For them then to reset it an hour forward of when they need to wake up (since it's already done that, although that hour counted as two), then the alarm doesn't go off early, making them 1 hour late. That's pretty annoying, I would be ****ed off anyway.

Guys ... It is supposed to do that! Did you not read that Steve jobs implemented that feature in 4.1 to get everyone out of bed earlier and worship him. You guys getting it go off at the right time are just are using it wrong.
Please contact Apple support and for a small £200 fee they will repair your device :L

TechDudeGeorge said,
Guys ... It is supposed to do that! Did you not read that Steve jobs implemented that feature in 4.1 to get everyone out of bed earlier and worship him. You guys getting it go off at the right time are just are using it wrong.
Please contact Apple support and for a small £200 fee they will repair your device :L

No, there cant be anything wrong with the APPLE device, so repair is out of the question. They will indeed provide a CONDOM for it at that price.

Xypro said,
Lol another fail by Apple. Hope they fix or Steve might just say "your holding it the wrong way".


nah the reply will be ur holding it in the wrong time zone

Xypro said,
Lol another fail by Apple. Hope they fix or Steve might just say "your holding it the wrong way".
I swear you guys love this quote way more than you should

hotdog963al said,
I swear you guys love this quote way more than you should

Hey, it was a good quote, and im loving the love =)

Purify said,
Ahh, good olde trusted Apple products.

We have a winner, a troll. ¬_¬. The phone has a bug. Whoopity do da. Every software thing has bugs especially your thing you called Windows. Get over it.

ZekeComa said,

We have a winner, a troll. ¬_¬. The phone has a bug. Whoopity do da. Every software thing has bugs especially your thing you called Windows. Get over it.


Fail, apple fanboy. At least Windows can do a task at the RIGHT time.

TDT said,

Fail, apple fanboy. At least Windows can do a task at the RIGHT time.

Says the fanboy - irony. A software bug is a software bug - if you are such an amazing developer maybe you should offer your services to Apple.

ZekeComa said,

We have a winner, a troll. ¬_¬. The phone has a bug. Whoopity do da. Every software thing has bugs especially your thing you called Windows. Get over it.

I thought Apple products were immune to that? Aren't they supposed to "just work"?

Frylock86 said,

I thought Apple products were immune to that? Aren't they supposed to "just work"?


It did work, just not properly. Nobody ever said properly.

TDT said,

Fail, apple fanboy. At least Windows can do a task at the RIGHT time.

Hm, some of the old Zune players experienced a similar bug and they were created by Microsoft - the company who develops Windows.

It's innevitable bugs will appear in some products. I'm sure Apple will promptly fix this, as Microsoft did.

Calum said,

Hm, some of the old Zune players experienced a similar bug and they were created by Microsoft - the company who develops Windows.

It's innevitable bugs will appear in some products. I'm sure Apple will promptly fix this, as Microsoft did.

I'll play devil's advocate. Linux ROXORZ! L33T PWNZORZ! Anyway, figured I would contribute to the argument, lol. My free with the plan phone works just fine, as does my dollar store MP3 player. For everything else, there's my Linux laptop. Apple and their overpriced "phone" can bite me. In reality though, stuff happens. The more features you give something, the more likely it is that at some point "something" is going to have a bug, it's to be expected and is no fault of Apple as a company, rather their QA dept. for missing all of these bugs that have been plaguing the latest iGadget.

virtorio said,

It did work, just not properly. Nobody ever said properly.
The apps functionality here is an alarm...it didn't go off at the right time and in doing so failed to fulfill its primary function so thats pretty much the definition of not working. It's not like it outputted a different text alert or used the wrong alarm tone.

ZekeComa said,

We have a winner, a troll. ¬_¬. The phone has a bug. Whoopity do da. Every software thing has bugs especially your thing you called Windows. Get over it.

Defensive much?

zkid2010 said,

Defensive much?

No, just sick of you whiny Windows fanbois, who think Microsoft never makes their own bugs and exploits. But if Apple does, it's a basharoma. Check yourself before you bash a company just because it's Apple and not Microsoft. Also, I'm not Mac fanboi as I actually use Linux, but I do prefer Mac over Windows any day of the week. But no fanboi as ever OS has it's use.

Frylock86 said,

I thought Apple products were immune to that? Aren't they supposed to "just work"?

Uhh Thats Microsofts motto not apples...

Butthurt apple fanboys above ^

But if Apple does, it's a basharoma.

Thats because apple fanboys are annoying dumb idiots.

and is anybody really a "Windows fanboi". Is that even possible?

- Saw "Mac" and "Mac-related bug" implied in the title
- Looked for flame bait/trolling
- First post

Damnit Neowin. Just damnit.

ZekeComa said,

No, just sick of you whiny Windows fanbois, who think Microsoft never makes their own bugs and exploits. But if Apple does, it's a basharoma. Check yourself before you bash a company just because it's Apple and not Microsoft. Also, I'm not Mac fanboi as I actually use Linux, but I do prefer Mac over Windows any day of the week. But no fanboi as ever OS has it's use.


you have to be new here ... the hardcore apple bashing has on recently started lol its been mostly Microsoft bashing around these parts

ZekeComa said,

We have a winner, a troll. ¬_¬. The phone has a bug. Whoopity do da. Every software thing has bugs especially your thing you called Windows. Get over it.

Heh, the bugs happen on the right time here!

(Spork) said,


you have to be new here ... the hardcore apple bashing has on recently started lol its been mostly Microsoft bashing around these parts

Not being here long have you

ZekeComa said,

No, just sick of you whiny Windows fanbois, who think Microsoft never makes their own bugs and exploits. But if Apple does, it's a basharoma.


That's because their products are supposed to "just work" and be perfect, like they say in their "full of ****" marketing campaigns. So when something like this happens, you have to wonder, how is this possible with an almighty apple product?!

TDT said,

That's because their products are supposed to "just work" and be perfect, like they say in their "full of ****" marketing campaigns. So when something like this happens, you have to wonder, how is this possible with an almighty apple product?!

A little rational thought will probably solve that for you.

virtorio said,

A little rational thought will probably solve that for you.

Right, forgot to add the sarcasm quotes.

This entire thread is just silly. Every piece of software has bugs; most update packages fix dozens if not hundreds of bugs and/or development oversights. Some are more noticeable to end users than others. This one is very noticeable, which makes it embarrassing but nothing more.

KSib said,
- Saw "Mac" and "Mac-related bug" implied in the title
- Looked for flame bait/trolling
- First post

Damnit Neowin. Just damnit.

Predictable, isn't it?

ZekeComa said,

We have a winner, a troll. ¬_¬. The phone has a bug. Whoopity do da. Every software thing has bugs especially your thing you called Windows. Get over it.

Yea well alarms are a pretty serious one.