Automatically calculates time between punches and totals time in hours and minutes. Handles up to 100 employees on weekly, bi-weekly, semi-monthly or monthly pay periods. Calculates actual or rounded time and can automatically deduct break time from totals for easy payroll totaling. Atomic feature synchronizes time automatically providing accurate time from U.S. Atomic Clock; automatically adjusts month, year and daylight savings time changes so you don't have to think about it. Day language selection includes English, Spanish or French. Optional battery backup for printing during power outages. Requires timecards sold separately . Time Clock Type Electronic; Number of Employees 100; Imprint Style Adjustable; Display Type s Digital.