getAxisSettingsFromTimeSpan = (timeSpan) => {
        let {
          ONE_YEAR,
          ONE_DAY
        } = timeBenchmarks;
        let settings;

        if (timeSpan < ONE_DAY) {
            settings = axisTimeCombinations.HOUR_DAY;
        } else if (timeSpan < ONE_YEAR) {
            settings = axisTimeCombinations.DAY_MONTH;
        } else {
            settings = axisTimeCombinations.MONTH_YEAR;
        }

        return settings;
    }
Figures out the proper settings from the current time span
@param  {Number} timeSpan    Span of time charted by the graph in milliseconds
@return {String}             Type of settings for the given timeSpan