My first thought was to

  1. add a duplicate cell and show the formula as general number.
  2. add another cell that adds 20 years worth of days.
  3. change the third cell formula back to date.

But I feel like there's way to directly modify the first cell(the original and the wrong).

How do I do this?


2 Answers 2


Try using the EDATE() formula. Since it adds months you'll need 240. Something like this:


Then paste values.

Alternatively, you could use this formula:


IIRC, this does work in Excel with a special paste function. Sadly, Google Sheets does not have it, so a simpler request for just adding 1 to a couple of cells doesn't work without the trick you describe. I recommended that procedure in one of my earlier answers.

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