using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

         // Get the offset from current time in UTC time

        DateTimeOffset dto = new DateTimeOffset(DateTime.UtcNow);

        // Get the unix timestamp in seconds

        string unixTime = dto.ToUnixTimeSeconds().ToString(CultureInfo.InvariantCulture);

        Console.WriteLine("ToUnixTimeSeconds: {0}",unixTime);

        // Get the unix timestamp in seconds, and add the milliseconds

        string unixTimeMilliSeconds = dto.ToUnixTimeMilliseconds().ToString();

        Console.WriteLine("ToUnixTimeMilliseconds: {0}",unixTimeMilliSeconds);

    }

}