Conditional.cs

using System;
using System.Text;

namespace ConsoleApplication
{
    public class Program
    {
        public static void Main(string[] args)
        {
            StringBuilder messageOfTheDay = new StringBuilder();
            var currentDate = DateTime.Now;

            if(currentDate.Day % 2 != 0)
            {
                messageOfTheDay.Append("Today is an odd Day, ");
            }
            else
            {
                messageOfTheDay.Append("Today all should be even, ");
            }

            switch(currentDate.DayOfWeek)
            {
                case DayOfWeek.Monday:
                case DayOfWeek.Tuesday:
                case DayOfWeek.Wednesday:
                case DayOfWeek.Thursday:
                case DayOfWeek.Friday:
                    messageOfTheDay.Append("that being said you should be working...");
                    break;
                case DayOfWeek.Saturday:
                case DayOfWeek.Sunday:
                    messageOfTheDay.Append("yay it's the Weekend!!!");
                    break;
                default:
                    throw new InvalidOperationException("This program only knows the 7 weekdays....");
            }

            Console.WriteLine(messageOfTheDay.ToString());
        }
    }
}