Running a small business and tired of calculating hours manually? This AT-4500 time clock calculator makes payroll a breeze! It automatically totals both regular and overtime hours - whether you track daily overtime, weekly overtime, or both. The best part? It's completely standalone - no computer connection needed, just plug it in and you're ready to go. The menu-guided setup gets you running in minutes, not hours. Your employees will love how simple it is - no buttons to press or time cards to align, they just drop their card in for punching. You can choose between AM/PM or 24-hour format, and get totals in regular minutes or decimal format. The optional rounding rules and automatic lunch break deduction features save you even more time on payroll. It requires specific time cards and ribbons (sold separately) but once you're set up, it's smooth sailing. Perfect for construction crews, small offices, retail stores - anywhere you need to track employee hours accurately without the headache of manual calculations. The clear display shows everything you need, and the durable construction means it'll handle daily use in busy workplaces. Stop wasting hours with calculators and spreadsheets - this smart time clock does the math for you while reducing errors and disputes over hours worked. Your bookkeeper will thank you!