C# 获取Unix时间戳

using System;

namespace ConsoleApp13
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(GetUnixTime(DateTime.Now));

            Console.Read();
        }

        /// <summary>
        /// 获取Unix时间戳, 秒级
        /// </summary>
        /// <param name="dateTime">时间</param>
        /// <returns></returns>
        public static long GetUnixTime(DateTime dateTime)
        {
            DateTime start = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1, 0, 0, 0, 0));
            return (long)(dateTime - start).TotalSeconds;
        }
    }
}