Workshift abs2work
From SDU
USD utilizes workshifts and sometimes it is useful to be able to determine times within a workshift.
int workshift_abs2work(string workshift, date start, date finish)
Returns the time in seconds from the start date to the finish date for the given workshift. Note: workshift is represented as a string (eg. "Mon - Fri { 7:30 am - 5:30 pm }")
