You can change the date & time format in Google Sheets & Excel Online using this guide. Use different date & time formats in spreadsheets.

While Microsoft Excel automatically reformats time values as hours and minutes, you can manually change the cell's time format to display the seconds as well.

It's easy to change the date format in Microsoft Excel. You just need to use the "Date" drop-down menu, which gives you plenty of options.

In addition to its basic spreadsheet functions, Microsoft Excel also allows writing formulas to perform functions on existing data. Using a quick equation, you can convert an existing set of time ...

This tutorial will show you how to change the number of Decimal places in Microsoft Excel using any one of these 3 methods.