How to allow player to win

I am very new to unity, sorry for such a silly question. I am making a simple game where the player is a jet, the goal is to avoid oncoming obstacles for 60 seconds, but I dont know how to allow the player to win and be able to move on to the next level once the 60 seconds are up. Any help would be awesome thanks.

Well first make your scene and save it to the buildSettings. Or you will get an error when you try to load your scene.
About the time I made a counter on th script below and loaded the next scene when the timer ends.

using UnityEngine;
// Yes you will need that to load scenes
using UnityEngine.SceneManagement;

public class NewBehaviourScript : MonoBehaviour
{
    // Set Surivalr time to 60.
    public float Counter, SurvivalTime;
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        Counter += Time.deltaTime;

        if (Counter >= SurvivalTime)
        {
            //Replace yourSceneIndex with the index of the scene you want to load. If you want to load with the name you need to write the name in the "".
            SceneManager.LoadScene(YourSceneIndex);
            Counter = 0;
        }
    }
}