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What is the appropriate way to format this string:

2012-07-28T23:59:00-06:00

This is the code I am using and the date formatter is currently setting the value of s.due_At to nil and both NSLogs are displaying null. I am getting the string above back from the dictionary for sure I have NSLogged it.

 NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
                [dateFormatter setLocale:[NSLocale currentLocale]];
                [dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"];
                s.due_At = [dateFormatter dateFromString:[assignmentData  objectForKey:@"due_at"]];


                NSLog(@"%@",[dateFormatter stringFromDate:s.due_At]);
                NSLog(@"%@",[dateFormatter dateFromString:[assignmentData objectForKey:@"due_at"]]);

How can I fix this to output the above string?

4

2 に答える 2

1

Z literal means RFC 822 standard which does not allow you to have : between hours and minutes:

 zone        =  "UT"  / "GMT"                ; Universal Time
                                             ; North American : UT
             /  "EST" / "EDT"                ;  Eastern:  - 5/ - 4
             /  "CST" / "CDT"                ;  Central:  - 6/ - 5
             /  "MST" / "MDT"                ;  Mountain: - 7/ - 6
             /  "PST" / "PDT"                ;  Pacific:  - 8/ - 7
             /  1ALPHA                       ; Military: Z = UT;
                                             ;  A:-1; (J not used)
                                             ;  M:-12; N:+1; Y:+12
             / ( ("+" / "-") 4DIGIT )    ; Local differential
                                             ;  hours+min. (HHMM)
于 2012-08-02T20:47:08.483 に答える
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Thanks for your help. Ok so I changed the formatter a bit. Here is the code. 

  NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
            [dateFormatter setDateStyle:NSDateFormatterShortStyle];
            [dateFormatter setLocale:[NSLocale currentLocale]];
            [dateFormatter setDateFormat:@"yyyy-MM-dd'T'HHmmssZ"];


            s.due_At = [dateFormatter dateFromString:[[assignmentData objectForKey:@"due_at"] stringByReplacingOccurrencesOfString:@":" withString:@""]];

            NSLog(@"%@",[dateFormatter stringFromDate:s.due_At]);

The Nslog is no longer null although it still contains the T in the middle. This is the log message now.

2012-07-29T015900-0400

于 2012-08-02T21:48:38.453 に答える