I own a restaurant and the employees often stay late to count and collect tips. Can I set a parameter so it only calculates scheduled time and not actual time if they hang around for an extra 15 min? Can I set it up so it rounds down to the nearest interval (such as 15 min or 30 min) but never rounds up?

TimeClock Pearl records the actual clock in and clock out times, so it doesn't include the option of automatically clocking employees out at a scheduled time. Sorry. That being said, the Payroll Administrator and am employee's authorized Timekeeper can modify time clock entries, so the clock out time can easily be changed and there are fields  in which an explanation for the change could be recorded. As for rounding, TimeClock Pearl's rounding option is to the nearest 15 minutes up or down and can't currently be set to always round down.  Again, the Payroll Administrator and an employee's authorized Timekeeper can modify time clock entries.