I have a Google spreadsheet which I use to track my accounts. I need to add Etsy sales to this, and have added a new sheet which is pasted from the CSV supplied by Etsy.

Unfortunately Etsy only supplies this CSV with dates in US MDY format (e.g. 12/31/2023) but all of the other dates in my spreadsheet are in the more common DMY format (e.g. 31/12/2023). As a result, Sheets does not think that these values are dates (or, in cases where it does think they're dates, it misinterprets them).

How can I get Sheets to recognise these dates and re-format them in a way that makes sense? NB I can't change the locale for the entire spreadsheet, because there are many other colums which contain dates in the correct format.

Alternatively (and slightly less ideally) is there a way I can calculate an intermediate value which Sheets will then recognise as a date? I tried this using a simple Regex (e.g. =REGEXREPLACE(B2, "(\d+)/(\d+)/(\d+)", "$2/$1/$3")) but Sheets still does not recognise the resulting value as a date.

  • You may want to try the ISO8601 standard date format yyyy-MM-dd. It works in any locale. Dec 30, 2023 at 21:46
  • That would be ideal, it's what I use for most things, but unfortunately it's not something that Etsy offer - they only give data in US format. Dec 31, 2023 at 1:42

1 Answer 1


Use value(), like this:

=to_date(value(regexreplace(B2, "(\d+)/(\d+)/(\d+)", "$2/$1/$3")))

See value() and Working with date and time values in Google Sheets

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