absence type duration weekend shift

Summary:

I have created a absence type duration fast formula , If employee duration is less than 1 then duration should return 0.5 days and if greater than 1 day then duration should be 1.5 day or 2 day etc..

This is working fine but if employee has shift on weekend then duration is showing a 0

Content (please ensure you mask any confidential information):

/*
Fast Formula to calculate absence duration based on employee's schedule.
Handles both weekdays and weekends for employees with shifts scheduled.
*/

DEFAULT FOR PER_ASG_REL_DATE_START IS '1951/01/01 00:00:00' (date)
DEFAULT FOR PER_ASG_DATE_PROBATION_END IS '1951/01/01 00:00:00' (date)