时间戳转换为UTC时间

https://www.epochconverter.com/

C#在线编译器

using System;
using System.Globalization;
public class Program
{
    public static void Main()
    {
        var time1 = Convert.ToDateTime("2022-04-24T22:18:02");//April 24, 2022 10:18:02 PM
        var time2 = TimeZoneInfo.ConvertTimeToUtc(time1);
        var time3 = DateTimeOffset.Parse("2022-04-24T22:18:02").UtcDateTime;
        //var diff = (long)(time - new DateTime(1970, 1, 1)).TotalSeconds - 1650838682;//1650838682
        Console.WriteLine(time1);
        Console.WriteLine(time2);
        Console.WriteLine(time3);
        CultureInfo culture = CultureInfo.CurrentCulture;
        Console.WriteLine(culture);
    }
}