How to autofill date and time in Google Sheets as a comment?

[milansk]

Hi guys, do you know how I can autofill date and time in Google Sheets as a comment?

Whenever I write something in each and every field, I would like a comment to be added to that field with current date and time.

 

[vletm]

milansk​

You're asking in As an Excel Question...
... but as Left top corner tells