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.

If you need to calculate dates in your spreadsheets, Excel uses its own unique system, which it calls Serial Numbers. Every date (month, day, year) and time (hour, minute, and second) has an ...

These two keyboard shortcuts will let you insert the current date and time in any cell of your spreadsheet. It doesn’t matter if you are using Google Sheets or Microsoft Excel; you can use these ...