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iOS 4.1 Daylight Saving Time Bug Strikes Europe

MacRumors

macrumors bot
Original poster
Apr 12, 2001
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Several weeks ago, we noted that users in New Zealand and Australia had discovered a bug in iOS 4.1 that caused recurring alarms to go off an hour early after those countries switched to daylight saving time beginning in late September.

At the time, Apple representatives in Australia reported that the bug would be addressed in an upcoming software update, which many users had hoped would be a quick iOS 4.1.1 fix rather than having to wait until iOS 4.2 sometime this month. A fix has yet to appear, however, and with the UK and other European countries ending daylight saving time this weekend, the bug is striking a significant new population of users.

And with European users ending daylight saving time as opposed to the earlier groups in the Southern Hemisphere that were beginning daylight saving time, the bug means that European users are seeing their alarms go off an hour late.

Daylight saving time ends in the United States and Canada on November 7th, setting the stage for a fresh spate of oversleepers if Apple does not provide an iOS update this week.

Article Link: iOS 4.1 Daylight Saving Time Bug Strikes Europe
 

stridemat

Moderator
Staff member
Apr 2, 2008
11,260
726
UK
I was aware of the bug. However, I forgot to do anything about it. Luckily I woke up naturally before that time anyway. I can only imagine the amount of people who overslept.
 
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rauko

macrumors newbie
Nov 1, 2010
5
0
The bug hit us in Uruguay also when we went into DST some 3 weeks ago.
:mad:
 
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h1r0ll3r

macrumors 68040
Dec 28, 2009
3,890
1
Maryland
Aww man.......Am I going to have re-jailbreak all because of a stupid DST bug? Screw it, I'll just be an hour off my appointments until spring rolls around.
 
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Willis

macrumors 68020
Apr 23, 2006
2,265
16
Beds, UK
I remember this being mentioned but didn't actually notice anything different on my phone. Although, I did set my alarm AFTER the clocks went back, not before.
 
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jamojdm

macrumors member
Oct 25, 2006
38
1
Manchester, UK
I just tested this in the UK with my iPhone 4 running 4.1

Set the alarm for 1340 at 1339 and a minute later the alarm went off...

Sorry guys I misread the recurring alarm as recurring problem with the alarm. Shouldn't speed read!
 
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OllyW

Moderator
Staff member
Oct 11, 2005
17,113
6,495
The Black Country, England
I just tested this in the UK with my iPhone 4 running 4.1

Set the alarm for 1340 at 1339 and a minute later the alarm went off...

Single event alarms still work correctly.

As it says in the first line of the report, it's alarms that are set to repeat which are the ones going off one hour late (or one hour early in the Southern Hemisphere).
 
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bartelby

macrumors Core
Jun 16, 2004
19,795
33
I was already aware of the bug so I changed my alarm settings to go off one hour earlier. :)

Smart Arse! :p


I figured it out on Sunday morning when the alarm didn't go off at the correct time, but didn't do anything about it for this morning.
Fortunately Tilly woke up only 5 mins after the alarm was meant to go off...
 
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b-rad g

macrumors 6502a
Jun 29, 2010
895
1
I have read that if you clear your alarms and set them up again it will be fixed.
 
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sunfast

macrumors 68020
Oct 14, 2005
2,134
47
Has anybody else had their phone randomly changing time when on "set automatically"? I turned it off becuase it kept going forward and then back one hour
 
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jamojdm

macrumors member
Oct 25, 2006
38
1
Manchester, UK
Single event alarms still work correctly.

As it says in the first line of the report, it's alarms that are set to repeat which are the ones going off one hour late (or one hour early in the Southern Hemisphere).

Ah I misread that as it being a recurring problem, not a problem with the recurring alarm. I'll continue to set my daily alarm then!
 
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roadbloc

macrumors G3
Aug 24, 2009
8,784
213
UK
I had this problem this morning... I blamed it on myself thinking I'd mistakenly changed the time of the event.
 
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