Can anyone tell how can i add 2 seconds to my TIMER from another script ?

SO i have a script for maintaining timer , but i want to access it from another script and add 2 seconds whenever “if”( condition is true) is used

THIS IS TIMER SCRIPT

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class Timer : MonoBehaviour {
	
	public float myTime = 30f;
	
	// Update is called once per frame
	void Update () {


	GetComponent<Text>().text =  (myTime -= Time.deltaTime).ToString("f0");


		if(myTime<=0) {
			Debug.Log("GAME OVER");
		}
		
	}
}

Now i have tried accessing it from this script , but it seems to restart my timer rather than adding 2 seconds

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class onClick1 : MonoBehaviour {

	public Text ScoreText;
	private int Count = 10;
	private int wrongAnswer = -5;
	public bool hello;
	**private float RightAnswer = 2.0f;**


	public    void SayHello(  bool hello = false ) {


		
      if (GetComponent<Image> ().color == GameObject.FindGameObjectWithTag ("DisplayButton").GetComponent<Image> ().color) {

			GameObject thePlayer = GameObject.FindGameObjectWithTag("GameController");
			DisplayColor displayColor = thePlayer.GetComponentInChildren <DisplayColor>();

			ChangeColor[] changeColors = thePlayer.GetComponentsInChildren <ChangeColor>();
			
			foreach(ChangeColor changeColor in changeColors ) {
				Debug.Log(changeColor .gameObject.name);
				changeColor.ColorME();
			}

			**Timer timer = thePlayer.GetComponentInChildren<Timer>();**

			
			hello = true;
			displayColor.changeColor();
			**timer.myTime =+ RightAnswer;**
			ScoreText.text = "SCORE: " + Count;

		
		
		
		} else if (GetComponent<Image> ().color != GameObject.FindGameObjectWithTag ("DisplayButton").GetComponent<Image> ().color) {
	
			hello = false;
			ScoreText.text = "SCORE: " + wrongAnswer;
		
		}
		}
	
}

timer.myTime =+ RightAnswer;

It should be “+=” and not “=+”, “=+” is equivalent to “=”.

On line 35 there is

**timer.myTime =+ RightAnswer;**

It should be “+=” not “=+”.