private DateTimeModel GetDefaultDatetime()
        {
            DateTimeModel dateTimeModel = new DateTimeModel
            {
                TextColor = Constants.DEFAULT_TEXT_COLOR,
                Type      = Constants.DATETIME_LOCAL_VALUE
            };

            return(dateTimeModel);
        }
        private DateTimeModel GetDatetimeModel()
        {
            DateTimeModel dateTimeModel = RedisService.Instance.GetValue <DateTimeModel>(Constants.REDIS_KEY_DATETIME);

            return(dateTimeModel ?? GetDefaultDatetime());
        }