Microsoft Excel handles temporal data effectively if you know which formulas to use. The problem is that Excel includes over 20 date and time functions, but most people only ever need a small core set ...

Excel’s Date & Time functions ease the workload for bookkeepers, project planners, HR departments, and other jobs where time is money. The four functions covered here—ISOWEEKNUM, WEEKNUM, WORKDAY, ...

DATEDIF(), which means Date + Dif, is a compatibility function left over from Lotus 1-2-3 that Microsoft adopted in Excel version 2000, which is the only version that explains how this function works.

The TIMEVALUE function in Microsoft Excel is a Date and Time function, and its purpose is to convert a time in the form of text to a serial number. It is used to convert text representations of times ...

As you create Excel spreadsheets for your small business, time and date functions frequently add both convenience and programming capability to your workbooks. There's good news with date functions.