T is for Timer

The Timer is a utility class in the flash.utils package. A timer's job is to fire off events at specified intervals.

The below ActionScript shows how to create a Timer instance and start it.

   import flash.utils.Timer;
  import flash.events.TimerEvent;
 
  // create a timer which fires every second (1000 ms)
  var timer:Timer = new Timer( 1000 );

  // add a listener to the timer
  timer.addEventListener( TimerEvent.TIMER, handleTimerEvent );

  // start the timer
  timer.start();

Learn more about the ActionScript Timer at Flex After Dark...