using System.Globalization;
public static void Main()
DateTime nowUtc = DateTime.UtcNow;
DateTime nowUtcPlus3 = nowUtc.AddHours(1);
Console.WriteLine("Fecha actual: " + nowUtc);
Console.WriteLine(nowUtcPlus3.ToString("yyyy-MM-dd HH:mm:ssZ"));
Console.WriteLine("Fecha en la fiscal: " + DateTime.Now.AddHours(8).ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture));