Unity is determined whether the time is within a certain range

 DateTime DateReg = Convert.ToDateTime(RegTime);
        DateTime MaxDate = Convert.ToDateTime(MaxTime);
        DateTime MinDate = Convert.ToDateTime(MinTime);
        if (!((NowTime.CompareTo(MinDate) >= 0 && NowTime.CompareTo(MaxDate) <= 0)
            && (DateReg.CompareTo(MinDate) >= 0 && DateReg.CompareTo(MaxDate) <= 0)))
        {
            Application.Quit();

        }