title: How to set hour minute in nsdate programmatically?
body: <p>I have 2:01:20 PM format in one label; after some calculations, I need to change the hour and/or minute of that label.</p>
  
  <p>That is ,Is it possible to change that label value, by converting it  as NSDate object and modifying hour and minute like 3:20:30 PM?</p>
  
  <p>Are there any setter methods for this?</p>