Is workingday column calculation in date dimension with Holidays range

i have implemented isworking day column with the refrence of one datecolumn in a  holidays refernece

IsWorkingDay = IF (NOT(DateTime[Day of Week]= "Saturday" || (DateTime[Day of Week]= "Sunday")) && COUNTX(RELATEDTABLE(Holidays),Date)<1,1,0)

Now the  Holidays refrence table splited  into holidaystartdate and HolidayEnddate.

How to handle this