At times, you might not like such a change due to a lack ... you need to open a spreadsheet in Excel Online. Then, right-click on the date/time cell and select the Number Format option from ...

In a program like Excel, which is designed to handle numbers, you'd expect to be able to use fractions without any hiccups.

Pro tip: Never change the format of a cell with a date to General or Text. Excel will turn your date into an unrelated number. For example, 3/3/2017 becomes 42797 when it's not formatted as a date.