class DailyStoreHour
    {
        public DailyStoreHour()
        {
            this.StartTime = String.Empty;
            this.EndTime = string.Empty;
        }

        public string StartTime { get; set; }
        public string EndTime { get; set; }

        public int MyProperty { get; set; }

        public bool IsClosed
        {
            get
            {
                return String.IsNullOrEmpty(StartTime) && String.IsNullOrEmpty(EndTime);
            }
        }
    }

    class WeeklyStoreHours
    {
        public WeeklyStoreHours()
        {

        }

        public Dictionary<DayOfWeek, DailyStoreHour> WorkingHours { get; set; }
    }