Iphone iOS 4 Contact Birthday Date Bug.

I had this problem on my ipad . Spoke to Apple who didn't seem to have heard of the problem before!
Their answer was to manually change birthday dates field on the ipad.

MY ANSWER is to DELETE birthday field from address book and CONTACTS on ipad.
Put birthday info in NOTES field as a text entry and sync. NEVER changes ALWAYS correct.

Try iOS 4.3.

Prior to synchronizing with Outlook:
- open the Control Panel,
- go to Date and Time,
- select the Time Zone tab, and
- deselect (remove the checkmark) for „Automatically adjust for day light saving changes“.
It works fine for me.

The topic is ancient, but until now the problem was not solved.

The problem regarding birthdays and anniversaries that appear on the iPhone one day earlier as well as appointments for a whole day that start at 11pm of the previous day and already end at 11pm of the actual day, appears to originate from Windows and Outlook, even if dates exported from Outlook appear correctly.
Microsoft has a Help and Support Center for the topic „Daylight Saving“:
http://support.microsoft.com/gp/cp_dst
There is a list of products effected by daylight saving:
http://support.microsoft.com/gp/dst_prodlist
Naturally, at first the operating system and thereafter the application are to be updated.

For example, the operating system be Windows XP, Service Pack 3 and the application be Outlook 2007.

The „Update for Windows XP (KB951072)“ is available at:
http://www.microsoft.com/downloads/en/details.aspx?FamilyId=81D03DA3-846C-4F7F-8 791-CD9943CE0893&displaylang=en
Select langauge of operating system, thereafter download file, for example „WindowsXP-KB951072-v2-x86-ENU.exe“ for english or „WindowsXP-KB951072-v2-x86-DEU.exe“ for german, and run file. Naturally, the operating system may already be up to date, then a corresponding message will appear.

The update for Outlook 2007 „Microsoft Office Outlook Tool: Time Zone Data Update Tool for Microsoft Office Outlook 32-bit“ is available at:
http://www.microsoft.com/downloads/en/details.aspx?familyid=%20E343A233-B9C8-465 2-9DD8-AE0F1AF62568&displaylang=en
Select language of the application, thereafter download file „OutlookTimeZoneMove.exe“ downloaden and run file.

It has work fine for me, the (initially inexplicable) shift in May 1965 disappeared (May has summertime, but not before 1980).
Naturally, there is NO GARANTEE, that the described solution will work in a particular case.

Alternatively (and with much effort), prior to synchronizing the iPhone, the checkbox for „Automatically adjust for day light saving changes“ can be removed/unselected in „Control Panel“ under „Date and Time“ in the tab „Time Zone“ and the change must be confirmed. Now, for me the shift in May 1965 has also disappeared. Thereafter, if need be, the checkbox may be set/selected again.

/* German version */

Das Thema ist steinalt, aber das Problem wurde bisher nicht gelöst.

Das Problem bezüglich Geburtstagen und Jahrestagen, die auf dem iPhone um einen Tag früher erscheinen, sowie Terminen für einen ganzen Tag, die beispielsweise um 23:00 des Vortags beginnen und bereits um 23:00 des Tages enden, scheint bei Windows und Outlook zu liegen, auch wenn die Daten beim Exportieren aus Outlook richtig erscheinen.
Microsoft hat ein Hilfe- und Support Center zum Thema „Sommerzeit“:
http://support.microsoft.com/gp/cp_dst
Es gibt Liste der von der Sommerzeit betroffenen Produkte:
http://support.microsoft.com/gp/dst_prodlist/de#WXPProSP2
Es bietet sich an, zunächst das Betriebssystem und dann die Anwendung zu aktualisieren.

Zum Beispiel, das Betriebssystem sei Windows XP, Service Pack 3 und die Anwendung Outlook 2007.

Das „Update für Windows XP (KB951072)“ findet sich unter:
http://www.microsoft.com/downloads/details.aspx?displaylang=de&FamilyID=81d03da3 -846c-4f7f-8791-cd9943ce0893
Sprache des Betriebssystems auswählen, dann Datei downloaden, zum Beispiel „WindowsXP-KB951072-v2-x86-ENU.exe“ für englisch oder „WindowsXP-KB951072-v2-x86-DEU.exe“ für deutsch, und ausführen. Es kann natürlich sein, dass das Betriebssystem bereits aktualisiert ist, dann erscheint ein entsprechender Hinweis.

Das Update für Outlook 2007 „Microsoft Office Outlook-Tool: Tool zum Aktualisieren der Zeitzonendaten für Microsoft Office Outlook, 32-Bit“ befindet sich unter:
http://www.microsoft.com/downloads/details.aspx?displaylang=de&FamilyID=e343a233 -b9c8-4652-9dd8-ae0f1af62568
Sprache der Anwendung auswählen, dann Datei „OutlookTimeZoneMove.exe“ downloaden und ausführen.

Bei mir hat das prima funktioniert, die (zunächst unerklärliche) Verschiebung im Mai 1965 ist verschwunden (ImMai ist Sommerzeit, aber nicht vor 1980).
Natürlich gibt es KEINE GARANTIE, dass die beschriebene Lösung im Einzelfall funktioniert!

Alternativ (und mit viel Aufwand) kann man VOR dem Synchronisieren des iPhones, im „Control Panel“ unter „Date and Time“ im Reiter „Time Zone“ einfach den Haken bei „Automatically adjust for day light saving changes“ ENTFERNEN und bestätigen. Auch jetzt ist bei mir die Verschiebung im Mai 1965 verschwunden. Danach kann man den Haken ggf. wieder setzen und bestätigen.

To everyone having this contact list date bug problem, please be aware:

1) This bug in iOS4 IS NOT LIMITED TO A TIMEZONE, OR LIMITED TO NEW ZEALAND. I have the same problem on the east coast of the US.

2) This bug IS NOT LIMITED TO OUTLOOK. I hate Outlook, and have never used it with my iPhone (an iPhone 4 running iOS 4.2.1). I sync with Google Contacts and Google Calendar.

Apple developers, please pay attention - having seen threads about this problem all over the place, this is clearly a very widespread problem.

I suggest that everyone else who is having this problem use this link to report this bug to Apple. If enough of us complain, maybe they'll fix it!

http://www.apple.com/feedback/iphone.html

Thanks

Someone should write this on Steve Jobs twitter. It seems nowadays that's the only way to get some attention from companies who don't care fixing their problems.

The problem is still present in the 4.3 GM release.

There seem to be several issues touched by this thread.
The issue where NZ users specifically are seeing the birthday appear one day off when they are editing a contact, should be fixed in 4.3. I don't know about the other issues.

Yes the dates being one day out when you sync is still a problem in iOS4.3.
I use Windows 7 64bit and Oulook 2010 and found a work-around until the problem is fixed.

1/ In Outlook 2010 File > Options > Calendar - Time zone. Change the Time Zone to any of the -Times Zones like (UTC-05:00) Eastern Time (US & Canada)
2/ Go into each of your Outlook Contacts and change the Birthday date to 2 days in advance of what it should be and Save the Contact.
3/ Sync the iPhone in iTunes
4/ Go into each of your Outlook Contacts again and change the Birthday date to the correct date and Save the Contact.
5/ Sync the iPhone in iTunes
6/ In Outlook 2010 File > Options > Calendar - Time zone. Change the Time Zone back to (UTC+12:00) Auckland, Wellington
7/ Sync the iPhone in iTunes
8/ Check each of your Contacts Birthday dates in your iPhone and in Outlook and they should show the correct dates now. Also the Calendars will be correct as well.

This worked for me here in New Zealand and survives further syncing when changing the Contact details in Outlook but if you change them in the iPhone the date will get corrupted and you'll need to go through the above procedure to fix the date again for that Contact.

How hard is it Apple? As I'm still having the same problem in iOS4.3.1

nice thread.. I thought I was going nuts.. added birthday to my contact and it appears 2 days out.. tried it on a few contacts and the issue is consistent.
if I set the date to 7th, it shows (immediately) as 8th. I back out to contacts then into that same contact and it's incremented to 9th... it stays there, so I just changed it to the 5th in order for it to settle on 7th... this is the first apple product I've ever owned, and I have to laugh at the claims by apple evangelists at how much easier it is to use apple products.. really? I have to trick this thing into getting the right date? phhffttt..

I desperately want this fixed too, but I doubt complaining in this thread will help much. *If you want to get this to Apple’s attention, please report a bug over at https://bugreport.apple.com/ like I did.*