You will have the ability to create access time zones and assign up to 3 different time zones to each employee separately. For example, if your shift is 8am-5pm and you allow employees to start clocking in only 5 minutes before the shift begins and for 15 minutes after the shift ends, then you have created a 9 hour 20 minute period during which an employee can punch in or out. The employee will be locked out of the device during any other period.