using System;
public class Program
{
public static void Main()
var dt = DateTime.Now;
var ep = DateTime.UnixEpoch.Ticks;
Console.WriteLine((dt.Ticks - DateTime.UnixEpoch.Ticks) / TimeSpan.TicksPerSecond);
Console.WriteLine(new DateTimeOffset(dt, TimeSpan.Zero).ToUnixTimeSeconds());
}