How can I display milliseconds in the time field in Finder (and other apps) in Sequoia?

What about Ventura and Sonoma? Can I upgrade to one of those for now? Do either of them support display of milliseconds?

And I forgot to check this when I was at Best Buy: Does macOS still have the same awful spell-checker?

What's "wrong" with the Apple spell-checker?

No Replace All function.

What should be called Ignore Once is called Find Next.

What should be called Ignore All is called Ignore.

When it's done, it just leaves up the last result, even carrying it to the next document. Why doesn't it just say done? Why doesn't it clear the fields when you start using it on the next document?

Doesn't touch words that are in all caps.

On the bright side, it's easy to Tab among the control buttons.

Why use a spell-checker?

Not every one can remember the spellings of all words, and not everyone can avoid typos.

Faster and more accurate than proofreading for spelling errors.

I learned how to take a square root by hand. (Yes, there is such a method, but it's cumbersome and laborious, at least by today's standards. Learned this in chemistry class (!) circa 1974-1977.) I usually use a calculator.

Those log and trig tables. I learned how to use them. Oh, and a slide rule, too! But now (and for quite a while!) I use a calculator instead.

I always found it both amusing and cringeworthy that Mr. Spock sometimes uses a circular slide rule.

Looks like things have changed in from 15.3.x to 15.4.x. You can't set the time format at all from the Sys. Settings or Preferences or whatever it is. Will the "defaults write blah blah blah" trick still work? TIA.

Does this still work with macOS 15.4.1? I see that customizing the time format is now totally removed from Settings. TIA. If not, is there some way to upgrade only to 15.3.x? I still need the milliseconds field.

@BDAqua

Thanks! But I need it for time stamps of files, like the Creation "Date" and Modified Date and such. I also need it for the output of Find Any File. Example:

asdf

zxcv

The first 3 files in the screenshot are original files. The last 4 files were evidently extracted from a zip file.

Why do I need this? I'm trying to figure when and where some file corruption happened.

If the millisecond fields are different and nonzero, the file is almost certainly an original file.

If the date/times are equal, and the millisecond fields are non-zero, the file was probably extracted from a tar file.

If the date/times are equal, and the millisecond fields are both 000, the file was probably unzipped from a zip file.

(The above is true on an APFS device. I have one ExFAT drive, and it always has 000 for the milliseconds for the created date/time and truncates down to the nearest 1/100th of a second for the modified date/time. YMMV.)

The above is useful information for me. And it appears Apple is taking it away, unless it can be done via the defaults command. And 15.4 seems to be different from 15.3 in that you can't modify the time format at all in the 15.4 Settings pane. So I wonder if the defaults command still works.

It's things like this that make me reluctant to upgrade macOS.

I am not interested in milliseconds on a system clock.

Mine does:

asdf

zxvc

Click Advanced

asd

zxc

Click Times

asdf

zxcv

Thanks! Just to be sure, this should work in the Finder, right? And, if you happen to know, in the app Find Any File?

Will this work with the new Sequoia? 15.4.1? Looks like it's different from 15.3, as you can't customize the date format at all!