c#- how to display time score in a new scene

if a player hits the wrong answer, it will proceed to the game over scene and display its score(stopwatch-time based scoring). if the player clicks the "try again" button, it will restart the stopwatch.

here's my code for the stopwatch which has the text mesh:

using UnityEngine; using System.Collections;

public class Timer : MonoBehaviour {

 // Use this for initialization
 
 private string timedis;
 private float milsec;
 private int sec;
 private int min;
 private int hou;
 private TextMesh text;
 
 public bool startime = false;
 
 private static bool created = false; 

 void Start () {
     text = gameObject.GetComponent<TextMesh>();
     milsec = 0;
     sec = 0;
     min = 0;
     hou = 0;
 }
 
 // Update is called once per frame
 void Update () {
     
     //Count time only whent this is true
     if(startime == true)
     {
         //Adding milliseconds
         milsec += Time.timeScale;
         //Adding seconds
         if(Mathf.Floor (milsec) >= 60){milsec = 0; sec = sec +1;}
         //adding minutes
         if(sec >= 60) {sec = 0; min = min +1;}
         //Adding hours
         if(min >= 60){min = 0; hou = hou +1;}
         //Display time
         timedis = (hou.ToString() + ":" + min.ToString() + ":" + sec.ToString () + ":" + Mathf.Floor(milsec).ToString());
         text.text = "Score: " + timedis;

     }
 
 }

 //Don't Destroy timer when new scene is loaded
 void Awake(){

     if(!created){
         DontDestroyOnLoad(this.gameObject);
         created = true;
     }
     else{
         Destroy(this.gameObject);
     
     }
 }

 //Destroy timer when GameOver scene is loaded
 void OnLevelWasLoaded(int level) {
     if (level == 52)
         Destroy(this.gameObject);
     
 }
 

}

the score on game over scene is still on "00:00:00:00" because i don't know how to display it. and when i click the try again button, the stopwatch disappeared!