That’s just sloppiness.
The information that familiarity gives you is “WTF does this field means”, and it’s the only thing that’s actually there. How you get a value and how a value is formatted are things no amount of expertise will save you from having to tell the computer, and thus you can’t just forget about.
(And let me guess, the software recommended install is a docker image?)
So, you need a unix time value followed by 000?
That first part you can calculate with
date +%s -d '2024-07-02 12:00'
.