Need help to exclude weekends from the calculation

[MR1]

Hi All,

The below script is working as expected but I need help to modify and remove the weekend from the calculation.
The below advance script is on the calculated tab of field "Aging". The integer type field 'aging' is on scoped application. 

(function calculatedFieldValue(current) {

	if(current.state == 7){ //7 is closed value of state field on a scoped application
		var aging= GlideDateTime.subtract(new GlideDateTime(current.sys_created_on),new GlideDateTime(current.closed_at));
	} else {
		aging= GlideDateTime.subtract(new GlideDateTime(current.sys_created_on),new GlideDateTime());
	}

	return aging.getDayPart();

})(current);

[newhand]

@MR1 

In my country holiday changes every year.....

I think you need a table to store the holidays，and get the holiday infomation from the table at the first. and modify the below part to judge if it's a holiday....

 if( startDateTime.getDayOfWeekUTC() == 6 || startDateTime.getDayOfWeekUTC() == 7){