iPhone - crazy timestamp

I have this code

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-mm-dd'T'HH:mm:ss.SSSSS"];

NSDate *date = [NSDate date];

NSString *timeStamp = [dateFormatter stringFromDate:date];

after开发者_StackOverflow running this date is equal to

2010-11-05 21:45:56 GMT

and timeStamp is equal to

2010-45-05T21:45:56.46700

month = 45 ???????????????????????????

any solution for this? Thanks.

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mm is for minutes. You want MM for months.

iPhone uses the Unicode Standards for date formatting. MM will give you the number of the month, prefixing 0 if necessary to have 2 digits, M will give you the number of the month without the leading 0.