public ObservableCollection <ModelComboBox> GetCountryDetails()
        {
            ObservableCollection <ModelComboBox> countryDetails = new ObservableCollection <ModelComboBox>();

            for (int i = 0; i < country.Count(); i++)
            {
                var details = new ModelComboBox()
                {
                    Country    = country[i],
                    CountryUTC = countryUTC[i],
                    Time       = time[i],
                };
                countryDetails.Add(details);
            }
            return(countryDetails);
        }
        public ObservableCollection <ModelComboBox> GetColor()
        {
            ObservableCollection <ModelComboBox> color = new ObservableCollection <ModelComboBox>();

            string space = " ";

            for (int i = 0; i < 15; i++)
            {
                space += space;
                var details = new ModelComboBox()
                {
                    Color   = Colors[i],
                    Country = space,
                };
                color.Add(details);
            }
            return(color);
        }