我也有这个问题，我不确定这是Apple代码中的API错误，还是我缺乏理解，但我通过在我的日期字符串中使用小时偏移来解决这个问题。

I've had this problem also, I'm not sure if it's a API bug within Apple's code, or my lack of understanding, but I've worked around it by using hour offsets in my date strings.

如果您将示例中的代码更改为：

If you change the code in your example to:

NSDateFormatter* df = [[NSDateFormatter alloc]init];
[df setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZ"];
NSString* str = @"2009-08-11T06:00:00.000-0700";   // NOTE -0700 is the only change
NSDate* date = [df dateFromString:str];

它现在将解析日期字符串。当然-0700小时是我的抵消，你必须把它改成你的。希望这会有所帮助。

It will now parse the date string. Of course the -0700 hours is my offset, you'd have to change it to yours. Hope this helps.