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 ...

How to Make a Cell on Microsoft Excel With a Changing Date. Microsoft Excel offers a Function Library with formulas that insert the current date when you open the worksheet or enter calculations.

DATEDIF (), which means Date + Dif, is a compatibility function left over from Lotus 1-2-3 that Microsoft adopted in Excel version 2000. It's fallen off current Excel menus, but you can still use it.

Both EDATE and EOMONTH calculate dates in a month. In this tutorial, we are going to explain how to use EDATE and EOMONTH in Excel.

Microsoft Excel 2010 has 400 functions in 11 categories. Categories for both spreadsheet programs include Date and Time, Text, Statistical, Financial and Engineering.