TimeUtils.java

    public static int getTimeDeltaMilliseconds(Context context) {
        return 1000 * 60 * 60 * 24 * getDaysInPlanner(context);
    }

    public static int getDaysInPlanner(Context context) {
        SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(context);
        String daysNoPrefs = sharedPref.getString(SettingsActivity.PREFS_DAYS_NO, "7");
        return Integer.parseInt(daysNoPrefs);
    }

    private static int getFirstDay(Context context) {
        SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(context);
        String firstDayPrefs = sharedPref.getString(SettingsActivity.PREFS_FIRST_DAY, "7");
        return Integer.parseInt(firstDayPrefs);
    }