How to save in Unity the time obtained in the game timer?

Question

I have created a timer for my game and I need to save in a variable or a function, the time elapsed until the moment of finishing, and then show it on the screen as "Record".

I want to display on screen the shortest time achieved, when a shorter time is achieved, replace, (overwrite) the time that was until that moment.

So far I have managed to show the clock time and a text to show "Record" that only shows "00:00" since I don't know how to put my code together.

The stopwatch works and restarts every time a new game starts, but I don't know how to save the time achieved at the end of the game

How do I get the shortest time achieved to display?

My experience is sparse in C#, I have started with a simple template to experiment and make changes.

I have built the code of the clock, following an example.

On the other hand, looking for information, I see that with the PlayerPrefs method you can save and delete data.

I found another example and studied the logic to use that method on my watch, but I don't quite understand the logic and I can't get it to work.

How can I get to save the time to display it as text on the screen?

How to make it always rewrite with the shortest time obtained at the end of the game?

I show the code of my Reloj.cs which works and is displayed on the screen.

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

public class Reloj : MonoBehaviour
{
  [Tooltip("Tiempo inicial")]
  public int tiempoInicial;

  [Tooltip("Escala de tiempo del relog")]
  [Range(-10.0f, 10.0f)]
  public float escalaDeTiempo = 1;


  private Text myText;
  private float tiempoDelFrameConTimeScale = 0f;
  private float tiempoAMostrarEnSegundos = 0f;
  private float escalaDeTiempoAlPausar, escalaDeTiempoInicial;
  private bool estaPausado = false;


  void Start()
  {
    // set the timeline
    escalaDeTiempoInicial = escalaDeTiempo;

    myText = GetComponent<Text>();

    //we start the variable
    tiempoAMostrarEnSegundos = tiempoInicial;

    ActualizarRelog(tiempoInicial);

  }

  // Update is called once per frame
  void Update()
  {
    if (!estaPausado)
    {
      // the following represents the time of each frame considered the time scale
      tiempoDelFrameConTimeScale = Time.deltaTime * escalaDeTiempo;

      // the following variable accumulates the elapsed time to show it in the Relog
      tiempoAMostrarEnSegundos += tiempoDelFrameConTimeScale;
      ActualizarRelog(tiempoAMostrarEnSegundos);
    }
  }

  public void ActualizarRelog(float tiempoEnSegundos)
  {
    int minutos = 0;
    int segundos = 0;
    string textoDelReloj;

    // ensure that the time is not negative
    if (tiempoEnSegundos <= 0) tiempoEnSegundos = 0;

    // calculate seconds and minutes
    minutos = (int)tiempoEnSegundos / 60;
    tiempoEnSegundos = (int)tiempoEnSegundos % 60;

    // create the string of digital characters that form the relog
    textoDelReloj = minutos.ToString("00") + ':' + tiempoEnSegundos.ToString("00");

    // update UI text element with character string
    myText.text = textoDelReloj;
  }

  public void Pausar()
  {
    if (!estaPausado)
    {
      estaPausado = true;
      escalaDeTiempoAlPausar = escalaDeTiempo;
      escalaDeTiempo = 0;
    }
  }
}

On the other hand, I have been doing tests to try to implement the following example in my Clock, but I can't. Before asking the question here, I have looked for a solution and I have tried to learn how to do it, I have seen videos, examples, and I do not get it.

The following example, I create it by watching a video, and I get it to save the data on the screen, and delete it from a button, but I don't know how to implement it in my Clock. I imagine it would be very simple, but I can't understand the logic.

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

public class LogicaPuntuaje : MonoBehaviour
{
  public Text textoPuntaje;
  public int numPuntaje;

  // The start is called before the first table update
  public Text textoRecord;

  void Start()
  {
    numPuntaje = 0;
    textoRecord.text = PlayerPrefs.GetInt("PuntajeRecord", 0).ToString();
  }

  // The update is called once per frame
  void Update()
  {

  }

  // button to create points by doing that I don't need
  public void PuntajeAlAzaro()
  {
    numPuntaje = Random.Range(0, 11);
    textoPuntaje.text = numPuntaje.ToString();

    if (numPuntaje > PlayerPrefs.GetInt("PuntajeRecord", 0))
    {
      PlayerPrefs.SetInt("PuntajeRecord", numPuntaje);
      textoRecord.text = numPuntaje.ToString();
    }
  }

  // function to delete the record data
  public void BorrarDatos()
  {
    PlayerPrefs.DeleteKey("PuntajeRecord");
    textoRecord.text = "00:00";
  }
}

Answer 1

    // here is the solution:
    float currentTime; // your current timer (without logic)
    float highscore = 99999; // set it to a really high value by default
    void start()
    {
       highscore = PlayerPrefs.GetFloat("best"); // get your previous highscore
    }
    //on level completed:
    {
        if(currentTime <= highscore //your best time
        {
           highscore = currentTime;
           PlayerPrefs.SetFloat("best", highscore); // save your score
        }
    }