The 7500E Lathem Calculating Atomic Time Clock provides precise and exact atomic time, automatically calculates worked time between punches, and accumulates totals on the card for up to 100 active employees or jobs. You can choose to automatically calculate actual or rounded time, and set the time clock to support automatic break deductions from daily totals. Automatic Daylight Savings Time adjustment and an internal lithium battery maintain the time, card totals, and program settings for up to 3 years without power making the 7500E atomic time clock virtually maintenance free. Features include printing English, Spanish or French; ability to transfer card totals to another card; and automatic differentiation of the front and back of a double-sided time card. Since 1919, Lathem's singular focus has been to manufacture innovative, durable and affordable employee time and attendance systems.