How to add 5 seconds to Timer that is counting DOWN OnTriggerEnter2d?

Questions & Answers
1

how can i add 5 seconds to my timer on triggerenter 2D
using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine;

    public class Timer : MonoBehaviour {
 // Use this for initialization
        void Start()
        {
            //restartMenu.SetActive(false);
    
        }
                // Update is called once per frame
        void Update()
        {
            timeLeft -= Time.deltaTime; // so basically this is subtracting float - TIME
            timerText.text = "TimeLeft:" + Mathf.Floor(timeLeft / 60).ToString("00");
           
                    string minSec = string.Format("{0}:{1:00}", (int)timeLeft / 60, (int)timeLeft % 60); timerText.text = minSec;
    
            if (timeLeft <= 0)
            {
                timeLeft = 0f;
                
                enemySpawner.enabled = false; // So im turning off the enemy spawning when the timer reaches zero
                
            }
    
        }

 public float timeLeft = 60f;
        public Text timerText;
        public InfinitePlatformGenerator enemySpawner;
    }
2

private void OnTriggerEnter2D()
{
timeLeft += 5;
}