TimeCalcPro

TimeCalcPro is an easy and powerful time and date calculator with many features. It adds, subtracts, multiplies and divides units of time, adds and subtracts AM/PM times, finds the difference between dates and times, lets you add and subtract from a starting date, and has a spreadsheet for calculating timecard totals and overtime.

Its five calculator interfaces are simple to use, and offer many options. For example, you can choose to receive answers in days, hours, minutes, seconds or any combination that you desire.

Perfect for payroll and many other uses.