How do I switch scenes with countdown timer and Score at the same time

Hello I am try get the scenes to change when countdown timer time run out and the Score is 40. Meaning In order to advance to the next scene the player gotta have a certain amount of point. So if countdown timer run gets to zero and the player score is at zero then the scene don't change . If the player do have a score of 40 or whatever the number is and the timer reaches zero then the scene switches. I got two separate scripts : Here is what I got so far :

Score Script: using UnityEngine; using System.Collections; using UnityEngine.UI;

public class ScoreManager : MonoBehaviour { public static int score; public Text text;

 void Awake () 
 {    
     text = GetComponent <Text> ();
     score = 0;
 }
 

 void Update () 
 {
     text.text = "Score :" + score;
 }

}

Timer Script:

using UnityEngine; using UnityEngine.UI;

public class MyClock : MonoBehaviour { public int Minutes = 0; public int Seconds = 0;

  private Text    m_text;
  private float   m_leftTime;
 
  private void Awake()
  {
      m_text = GetComponent<Text>();
      m_leftTime = GetInitialTime();
  }
 
  private void Update()
  {
      if (m_leftTime > 0f)
      {
          //  Update countdown clock
          m_leftTime -= Time.deltaTime;
          Minutes = GetLeftMinutes();
          Seconds = GetLeftSeconds();
 
          //  Show current clock
          if (m_leftTime > 0f)
          {
              m_text.text = "Time : " + Minutes + ":" + Seconds.ToString("00");
          }
          else
          {
              //  The countdown clock has finished
              m_text.text = "Time : 0:00";
          }
      }
  }
 
  private float GetInitialTime()
  {
      return Minutes * 60f + Seconds;
  }
 
  private int GetLeftMinutes()
  {
      return Mathf.FloorToInt(m_leftTime / 60f);
  }
 
  private int GetLeftSeconds()
  {
      return Mathf.FloorToInt(m_leftTime % 60f);
  }

}