概要

using System.Diagnostics;
using System.Threading.Tasks;
using UnityEngine;

public class Example : MonoBehaviour
{
    private async void Start()
    {
        var sw = new Stopwatch();
        sw.Start();

        await Task.Delay( 1000 );

        sw.Stop();

        print( sw.Elapsed.TotalSeconds );
    }
}

今までこう書いていたけど

using System.Diagnostics;
using System.Threading.Tasks;
using UnityEngine;

public class Example : MonoBehaviour
{
    private async void Start()
    {
        var sw = Stopwatch.StartNew(); // ★

        await Task.Delay( 1000 );

        sw.Stop();

        print( sw.Elapsed.TotalSeconds );
    }
}

こう書ける