Matt,

The result differs not only on simulator, but also on iphones running 4.3 and 
5.0.
I have also found out that ONLY some of the known time zones work fine on 5.0. 
e.g. PDT, PST, GMT ...etc. However, all time zones work fine on iOS 4.3.
In fact, I have already reported this as a bug to apple.

Thanks and Regards
Kin

On Nov 15, 2011, at 11:11 PM, Matt Neuburg wrote:

> By the way, I can readily confirm that the results differ on the simulator 
> for 4.3 vs. 5.0. m.
> 
>> On Fri, 11 Nov 2011 16:13:49 +0800, Kin Mak <kin...@me.com> said:
>>> The following code used to work fine prior to iOS 5. The dateFromString 
>>> method seems to stop working on iOS 5 and always returns null. I suspect 
>>> this is a bug introduced in iOS 5.0. Have  anyone encountered the same 
>>> issue? Or do I miss something here?
>>> 
>>>             NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
>>>             [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSS zzz"];
>>>             
>>>             .....
>>>             //E.g currentString = @"2011-11-11 11:00:00.000 CET";           
>>>             NSDate *date = [dateFormatter dateFromString:currentString];
>> 
>> It works for me if I substitute "PST" for your "CET" - could the "CET" be 
>> the problem?
>> 
>> I guess what I would do is start by testing whether the date formatter can 
>> round-trip its own output, like this:
>> 
>>   NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
>>   [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSS zzz"];
>>   NSString* output = [dateFormatter stringFromDate:[NSDate date]];
>>   NSLog(@"%@", output);
>> 
>>   NSDate* date = [dateFormatter dateFromString: output];
>>   NSLog(@"%@", date);
>> 
>> It can on my machine (PST). If it can't on your machine, that sounds like a 
>> bug.
>> 
>> Also, do try -[dateFormatter getObjectValue:forString:errorDescription:]; It 
>> is definitely throwing an error (not very helpful, "The operation couldn't 
>> be completed") for your string on my machine.
>> 
>> m.
> 
> 
> --
> matt neuburg, phd = m...@tidbits.com, <http://www.apeth.net/matt/>
> A fool + a tool + an autorelease pool = cool!
> Programming iOS 4!
> http://www.apeth.net/matt/default.html#iosbook

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