A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
In most cases this issue is due to the "times" that you paste into the cell.
You think you have a time, but the cell contains a text afterwards. See example in the screenshot below, in A2 there is a text, hence the error.
Rewrite the time in the input cells manually, the fixes the issue in most case. If possible check also the number format of the cells.
If you need further help, please select the cell with the error and make a screenshot (at best the whole screen) and include at min. the formula bar so that we can see the formula (as I did) and post it here.
Have a look here how to include a screenshot in your post:
https://answers.microsoft.com/en-us/windows/for...
Andreas.