public Office()
        {
            GreetByUs     = null;
            ByeByUs       = null;
            timeEvent     = new TimeOfDayEvent();
            employeeEvent = new EmployeeEvent();


            timeEvent.TimeEvent    += Time_State;
            employeeEvent.Employee += Employee_State;
        }
        //Обработка события смены времени
        private void Time_State(TimeOfDayEvent sender, TimeStateEventArgs time)
        {
            if (sender == timeEvent)
            {
                if (time.eventTime == 1)
                {
                    Console.WriteLine("[Time of day is before 12]");
                }

                if (time.eventTime == 2)
                {
                    Console.WriteLine("[Time of day is between 12 and 17]");
                }

                if (time.eventTime == 3)
                {
                    Console.WriteLine("[Time of day is under 17]");
                }
            }
        }