Time duration calculators are perfect for calculating the number of days, months and years between two dates. A time duration calculator is an essential tool for human resource administrators, payroll clerks, business owners and managers who are responsible for managing and calculating the working hours of every employee. This device is especially useful if you work in a company that needs to keep records of many employees.

A time duration calculator can even tell you how many days you are old. Actually you can calculate anything that has started in the past till present time. An accurate calculation of years, months, days, hours, minutes and seconds between two periods in time. All you have to do is to type the starting and the finishing date. The following time duration calculators are some of the most popular on the market:


Time Card Tabulator II – Time Card Tabulator II comes with a protective case and easy-to-follow user’s guide. Unlike other time duration calculators, this one has longer life battery and ergonomically designed Armadillo gear case. Managers, business owners and human resource administrators can’t live without this time duration calculator. Now, what exactly makes this time duration calculator to be so popular. What features does it offer? Let’s check the following functions and features of this model:

  • Easy-to-read LCD display;
  • Provides instant calculations of total hours and total pay roll with just a touch of a key;
  • Comes with a built-in stopwatch and alarm;
  • Displays 24 hour time formats or AM/PM;
  • Last but not least, it’s capable of storing up to 10 separate values.

Time Master II – Time Master II is a specialized time duration calculator that performs difficult and tedious time-math calculations in seconds, minutes and hours. It is designed to accurately schedule and track hours, solve elapsed time calculations and prevent future scheduling errors. Pilots, flight attendants, estimators, athletes, trainers, broadcasters and production schedulers benefit from this time duration calculator. Easy-to-use device, ideal for estimating time-based costs, compute flying hours, as well as regular math calculations.