NSDateFormatter in 12-hour mode

objective-c ios datetime nsdate nsdateformatter
Sergey picture Sergey · Jun 16, 2012 · Viewed 14.9k times · Source

I have the following code.

NSDateFormatter *df = ...;
[df setTimeZone:[NSTimeZone defaultTimeZone]];
[df setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZZZ"];
NSDate * date = [df dateFromString:date_string]; //here is the problem

In 24-hour mode everything is ok. When 12-hour mode is set on device, stringFromDate returns null. Format of date_string is the same all the time, date format too. Why does it happen?

Answer

Omar Abdelhafith picture Omar Abdelhafith · Jun 16, 2012

In your NSDateFormatter "yyyy-MM-dd'T'HH:mm:ss.SSSZZZ" HH stands for 24 hour and hh stands for 12 hour

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