Excel DATEVALUE is a Date and time function, and its purpose is to converts a date in the form of text to a serial number. Learn how to use it.

The NETWORKDAYS function in Excel is a date and time function that returns the number of whole working days between Start_date and End_date.

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

Bookkeepers, project managers, HR departments and more use the Excel Date & Time functions WEEKNUM, ISOWEEKNUM, WORKDAY, WORKDAY.INTL to calculate time. Here's how.

If you have to work with a date stamp in Microsoft Excel that includes date and time, you can use these simple expressions to extract both components, making them easier to work with.

Microsoft Excel's Month and Weekday functions output numeric values for a given date. The Month function results in the month numbers, such as "3" for March or "12" for December.

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 ...