One of the more striking features of TimeCalc Classic is its simplicity of use. When you first use the program, you select the units you'll be using for entering times and for your results. For example, your time clock may report times in hours and minutes (08:15), but your payroll system may require hours and 100ths (08.25). Then, the program automatically converts each entry from hours/minutes to hours/100ths (see example screen below). After each employee's time is entered, you simply select the next employee and proceed.