The Lathem 7000E automatically calculates worked time between punches and accumulated totals on the card for up to 50 active employees or jobs. Works with all pay periods, or set to job mode for accurate costing information. Calculates actual or rounded time, and supports an automatic break deduction from daily totals. Automatic print alignment, and auto-sensing of front and back of card eliminates operator mistakes and reduces time required to punch in & out. Prints time in AM/PM, 24 HR or 1/100th of an hour. Automatically adjusts for short months, leap year and daylight savings. Internal lithium battery maintains the time, card totals, and program settings for up to 5 years without power. Optional rechargeable battery keeps unit fully operational for up to 24 hours in case of power failure.