how to stop time in unity code example

Example: time stop unity

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Example : MonoBehaviour
{

	bool timeOff; //Set a bool to know when the time is off

	public void TimeOff() //Make a public void to reference
    {
    	Time.timeScale = 0f; //Set the time to 0f
    }
    
    public void TimeOn()
    {
    	Time.timeScale = 1f; //Set the time to 1f
    }
    
	void Start() //You don't need a start method so you can delete it if you want
    {
    	
    }
    
    void Update() //You do need the Update Method
    {
    	if(timeOff) //We need an if() statement here
        {
			TimeOff(); //Reference TimeOff();
            
            timeOff = true; //Set the bool to true
		}else if(timeOff) //Add an else if statement here
        {
        	TimeOn(); //Reference TimeOn();
            
            timeOff = false; //Set the bool to false
        }
    }
    
    //Now after the code is saved, click on the button that will trigger your TimeOff() and add a OnClick Event to it and Reference TimeOff
    //Now click on the button that will go back to the game and add a OnClick Event to it and Reference the TimeOn() void
   
}