title: NSTimer where code repeats every (some time value in seconds) for 1 minute
body: <p>I have read some docs on NSTimer and havent quite seen what I am looking for.</p>
  
  <p>I would like to know how to write an NSTimer which will repeat every 1 sec or another time value(maybe have this value as parameter) and the overall repeat should repeat for one minute. </p>
  
  <p>Also how is this overall time (1 minute) shown on screen , maybe in a UILabel?</p>
  
  <p>Thanks</p>