Display Time At Game Over Scene

I have this time script:

 #pragma strict
 private var startTime : float;
 var textTime : String;
 //First define two variables. One private and one public variable. Set the first variable to be a float. 
 //Use for textTime a string. 
 function Start() {
 startTime = Time.time;
 }
 function OnGUI () {
 var guiTime = Time.time - startTime; 
 //The gui-Time is the difference between the actual time and the start time.
 var minutes : int = guiTime / 60; //Divide the guiTime by sixty to get the minutes.
 var seconds : int = guiTime % 60;//Use the euclidean division for the seconds.
 var fraction : int = (guiTime * 100) % 100;
  
  textTime = String.Format ("{0:00}:{1:00}:{2:00}", minutes, seconds, fraction); 
 //text.Time is the time that will be displayed.
  GetComponent(GUIText).text = textTime;
  
 }

Stars all falling and the player's job is to destroy the stars by touching them and they cannot let one pass or they will lose the game. The score system is basically the time; how long they last. But, I'm having trouble with creating a game Over trigger and displaying the player's highest time in the Game Over scene. How do I do it?