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

Use PlayerPrefs as a simple way to handle data like that across scenes.