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 public Light sun; // The light that acts as the sun
 public float dayDuration = 120f; // Time for a full day in seconds

 private float time = 0f; // Track time of day

 void Update()
 {
     // Increase time based on day duration and loop back to 0 after a full day
     time += Time.deltaTime / dayDuration;
     if (time > 1f) time = 0f; // Reset time after a full day

     // Rotate the sun on the x-axis only, to simulate the day and night
     float rotationAngle = time * 360f - 90f;
     sun.transform.rotation = Quaternion.Euler(rotationAngle, 0f, 0f);
 }