DST bug strikes iPhone again

Now where have we heard this one before? It appears the iPhone software has once again become a victim to the dreaded DST bug.

Experiencing it first hand this time, I noticed that my iPhone had randomly dropped back by a full hour during the day. After my iPhone 4 - which was running iOS 4.3, the latest firmware - rolled a minute passed 2:59, it now displayed 2:00, as if the phone forgot that DST started at 2AM, not 2PM. Perhaps the iPhones 12-hour format clock could be to blame, I found myself setting the time manually, which automatically corrected the time; switching it back simply displayed 2:00PM again.

Shortly after the DST bug struck, I noticed I wasn't alone, as numerous reports about iPhone clocks falling back by two hours surfaced. The last time we witnessed the iPhone DST bug, was back on New Years Eve, which gave many consumers an extra hour to sleep, making them late for work and other events. Sadly, Apple's only suggestion to correct the issue was to let the bug simply fix itself on January 3, which came and went without a fix for repeating alarms.

Sometime after 8PM EST, setting my iPhone to automatically set its own time seemed to display the correct time, meaning the bug was only temporary. However, the iOS software continues to be plagued by the DST bug, which was supposed to be fixed twice by now. Third times a charm, Apple.

Report a problem with article
Previous Story

Windows 8 'Aero Lite' button elements revealed

Next Story

iPad 2 launch a big win for Apple, stores sold out on first day

60 Comments

Commenting is disabled on this article.

Elliott said,
Everything fired off as expected for me. Maybe AT&T just manages their time servers appropriately?

Yeah, me too. Go AT&T!

Elliott said,
Everything fired off as expected for me. Maybe AT&T just manages their time servers appropriately?

I'm not sure. Everything had gone well with mine today. My alarm even went off at 6:30 am as it was set. This is certainly not happening to everyone. Strange bug that only affects some people under the same circumstances.

I am with AT&T, by the way. I have also been to a few different places in the last two days, such as Newark, NJ and am currently in Mountain View, CA.

3GS phone was my first and last phone from Apple, those idiots don't even care about their customers. I don't know how they're willing to collect more customers.

There are numerous people that having their phone reboot during the call and they haven't even responded to the thread that's been made in the Apple forum. So sham on a company like Apple and I am very disappointed!

No more Apple for me, though I only have the 3GS Iphone.

nabz0r said,
3GS phone was my first and last phone from Apple, those idiots don't even care about their customers. I don't know how they're willing to collect more customers.

There are numerous people that having their phone reboot during the call and they haven't even responded to the thread that's been made in the Apple forum. So sham on a company like Apple and I am very disappointed!

No more Apple for me, though I only have the 3GS Iphone.


I feel the same way. I replaced my 3GS with the HTC Inspire 4G today!

I'm using a 3GS. I have my "Set Automatically" option off with the correct time zone selected. I didn't need to touch anything, heck I had even forgotten that we switched over to DST.

Makes me wonder exactly how this "Set Automatically" feature works in the first place, (I'm thinking it's probably related to the time zone rather than the actual setting of date/time) but either way the point stands... try turning it off and see if it's still screwing with you.

EDIT: On the other hand, a friend of mine has the same phone (with the same iOS version - 4.3) and had his auto option to on and his didn't change, so I'm thinking that's probably the cause of it. My friend's phone switched immediately to the proper time when the option was turned off and the correct time zone was selected.

alexalex said,
It's not the iPhone, it's the cellular provider which sets the clock.

Then why isnt any other phones having the problem?

radwimp said,
Had no issues with DST on my iPhone 4 here.

Same here, but then again, I have the Verizon iPhone which only has 4.2.6. (No 4.3 for Verizon yet)

Heh, and people gave out about Google ignoring the SMS bug. How many years has this bug effected iPhones / iPods?

thommcg said,
Heh, and people gave out about Google ignoring the SMS bug. How many years has this bug effected iPhones / iPods?

Keep it cool, buddy!
This is 4.3 specific, so ask how many days for this specific bug appearance!
Not affecting 4.2.1 for example...

GS:ios

iOS..I used to say all it was good for was being an alarm clock. But, it's not even good at that. My dumb phones from years ago can handle DST and alarms just fine. It is hilarious that a modern "smartphone" OS can't even handle such a simple task.

This is not an issue it is a FEATURE. Jobs decided he wanted everyone at Apple to work 2 extra hours today....so he hatched up this great plan....

No problem on my iPhone 3GS and iPad running 4.3. And a very good thing too, as I was flying all day and being an hour behind would have really affected my travel plans.

Never had this problem or the alarm problem on 3.x.x. And never had this problem or the alarm problem on 4.x.x.

I wasn't affected by it this time around, though my alarm did go off late during the first episode of this bug when daylight savings ended a few months ago. iPhone 4 with iOS 4.3

no-sweat said,
It's ok, Apple will fix it with the iPhone 5 so now you have a reason to upgrade!

no they wont, it's a feature, not a bug

Why does the iPhone care about DST and such and try to do this on its own? My BB 9000 and older models that I have used, as well as HTC and Moto phones were fine cause they didn't care about time zone settings, they just used the "Network Time" and would sync periodically....

Lord Zog said,
Why does the iPhone care about DST and such and try to do this on its own? My BB 9000 and older models that I have used, as well as HTC and Motoi phones

were fine cause they didn't care about time zone settings, they just used the "Network Time" and would sync periodically....


Lord Zog said,
Why does the iPhone care about DST and such and try to do this on its own? My BB 9000 and older models that I have used, as well as HTC and Moto phones were fine cause they didn't care about time zone settings, they just used the "Network Time" and would sync periodically....

Ever needed a correctly timed alarm in the night?
What if your periodical check is too late and you get a due time wrong.

Surely it won't happen often, but if it does you're glad your smartphone is actually smart and less reliant.

The concept makes sense.
Bugs in such simple systems that are as crucial as time however are... quite a big annoyance and let's hope Apple won't slip it again...

GS:ios

WP7 has its problems too. I live in AZ, the phone selects your time based on your location, but it selected wrong (and I didn't really notice until yesterday). It has been running on MST, which is what we appear to run at for 1/2 the year, but AZ does not do DST... it SHOULD have picked Arizona (which is MST without DST or some such thing). So I had to manually set my time zone yesterday.

Tuishimi said,
WP7 has its problems too. I live in AZ, the phone selects your time based on your location, but it selected wrong (and I didn't really notice until yesterday). It has been running on MST, which is what we appear to run at for 1/2 the year, but AZ does not do DST... it SHOULD have picked Arizona (which is MST without DST or some such thing). So I had to manually set my time zone yesterday.

nohone said,

(sorry about the blank post, hit the wrong button and it won't let me edit)

If this were an article about WP7 having a problem, and someone talked about a bug in the iPhone, a certain group of people would be yelling about "who is talking about the iPhone, this article is about WP7"

nohone said,

lol. Too true. You can't help but make the comparison of a half-baked mobile OS that doesn't even have copy and paste (yet) to a mature mobile OS that can't do DST correctly.

dotf said,

lol. Too true. You can't help but make the comparison of a half-baked mobile OS that doesn't even have copy and paste (yet) to a mature mobile OS that can't do DST correctly.

Didn't the iPhone only recently get copy/paste?

dotf said,

lol. Too true. You can't help but make the comparison of a half-baked mobile OS that doesn't even have copy and paste (yet) to a mature mobile OS that can't do DST correctly.

I seem to remember Apple saying copy/paste isn't something users wanted.

RangerLG said,

I seem to remember Apple saying copy/paste isn't something users wanted.

I still rarely use copy and paste on my iphone ...

RangerLG said,

I seem to remember Apple saying copy/paste isn't something users wanted.

And people don't read. And 3G will drain the battery. And developers only need HTML not an SDK. And on, and on, and...

nohone said,

And people don't read. And 3G will drain the battery. And developers only need HTML not an SDK. And on, and on, and...

3G DOES drain battery and back in 2007 there was no optimal chipset for it.

I run my iPhone on Edge until I open Maps or browse media or stream or download.
SBSettings makes switching between 3G and Edge a breeze and you save a bunch of battery.
Example: I see little reason to browse Neowin mobile (which is FAST on Edge) via 3G.
I'll gladly take the extra minutes of music, video, apps and phone availability in standby!

GS:ios

AgentGray said,
alarm went off an hour early today. 8am. EIGHT AM APPLE. i haven't seen eight am since highschool.

Mine did the same thing. I was not pleased getting waken up this morning at 4:45AM. 5:55AM was too early already.

AgentGray said,
alarm went off an hour early today. 8am. EIGHT AM APPLE. i haven't seen eight am since highschool.

I thought this bug was about one hour earlier, not one sleeping-in hour later ;-)

Yeah zero problems here too. (iPhone 4, iOS 4.3)

I was actually paranoid of it happening so I set my TV to turn on as a second alarm just encase.

Didn't seem to affect my iPod touch running iOS 4.3 either. Seems really weird that this only seems to affect certain people, but not everyone.

didn't happen to me or my wife, iPhone 4 and iPhone 3gs respectively, Time changed and all calendar reminders fired off as expected.

Bummer....either move to a place where there is no time change, or pick a diff phone if this is an issue for you. Kinda funny Apple cannot seem to fix this issue.

My WP7 phone (Samsung Focus) didn't have any DST bugs.

The problem I had was self induced.
I left my phone's Time Zone in as default (Central) and I live in Saskatchewan, which doesn't observer DST.