Employees are tracked and monitored using time and attendance systems (TNA). An employer can track its employees' working hours and late arrivals, early departures, break time, and absenteeism using a time and attendance system. It also reduces overpayments, frequently generated by paying personnel when they are not working, and eliminates transcribing interpretation and intentional errors. TNA systems can also guarantee that evidence of attendance conforms with labor standards. Most firms use time and attendance software to automate duties such as tracking hours and leave.