How do i save the time at the end of my game to display on my lose script

The time script for my Timer is

//declare
float playerLevelTime;
Text text;

// assign
void Start () 
{

	text = GetComponent <Text> ();
	playerLevelTime = 0;

}

//do something
void Update () 
{
	playerLevelTime = playerLevelTime = Mathf.Floor(100*Time.timeSinceLevelLoad)/100;
	text.text = "TIME: " + playerLevelTime.ToString();
}

make playerLevelTime public