Most numbers used in business are based on 10 – commonly known as the decimal system. One dollar is $1.00 and a half-dollar is $0.50. Time, of course, is an exception because it's based on 12. The day ...

Excel makes quick work of tracking time. With the right formatting, formula and dependent time values, you can return the hours worked for a given day, week, month and so on. If all you’re doing is ...