ios - How do you display real time, time on UIView - Swift -

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I'm trying to create an alarm clock app but I do not know how to display time in real time. Do I have to do such a program or use an object like UIDAte picture? I have tried to search for it but it is for purpose-c that I am not quite familiar with.

If you have any questions, please comment them below below. 

  var date = NSDate () var outputFormat = NSDateFormatter () outputFormat.locale = NSLocale ( Locale Identifier: "en_US") outputFormat.dateFormat = "hh: mm: ss" println (Outputformat.frfformadet (date))

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