public static void Main()
Console.WriteLine(GetLimitDate(DateTime.Now, 2));
public static DateTime GetLimitDate(DateTime date, int daysLimit){
for (var i = 0; i < daysLimit; i++){
date = date.AddDays(date.DayOfWeek == DayOfWeek.Saturday ? 2 : 0);
date = date.AddDays(date.DayOfWeek == DayOfWeek.Sunday ? 1 : 0);