Why do countries use different dating systems?

The only country that uses “mm/dd/yyyy” is the United States. I suppose it goes along with our “reformed spelling” as a local thing that has developed without pressure from the rest of the world.

The origin of either format is just the fact that you can say “today is August 29” or “today is the 29th of August,” and, in the United States, “August 29, 2018” is the most common fully-written-out style.

I can’t find a source for the origin of “short dates” but they seem, from old documents I have seen, to have started appearing in the late nineteenth or early twentieth century and only very recently been accepted in formal documents. Also, the month was commonly designated with a Roman numeral up until about the time of the Second World War.

Because the US likes being mathematically more precise in celebrating π day on March 14 (3.14) instead of on approximate π day (July 22, or 22/7) in Europe and Canada.

Worldwide there are basically 2 approaches to the date – small to big (day, month, year) or big to small (year, month, day). And the weird ass way the us does it.

The most likely theory is that it’s left over from how the British did it before US independence and they’ve never bothered to update it.

I’ve always assumed that it was the US being stubborn & not wanting to do anything like England. Also assumed that’s why we drive on the opposite side of the road. England had colonized a good portion of the world way back when & that could be why others use the same format.

In every day use, we use day/month/year.
For naming files, we use year/month/date, because that is better for sorting.
month/day/year is just retarded profoundly stupid.

The US Army writes the date as day-month-year.

American genealogists use day/month/year as well.

Month day year is the US and I think Belize? Most countries use day month year. Some countries use year month day (mostly some countries in East Asia).

US military uses day month year, as mentioned above, AND uses the 24 hour clock.

The US is also one of the few countries that starts the week on Sunday rather than Monday.

The US also uses the seven continent model (we aren’t the only country that does) while some other countries use six and some five. Remember the five rings of the Olympics.

Goes without saying about the metric thing.

Why do…

Why though.

Q: Why does some countries use different dating systems?
Some countries swipe left?

By “other people”/“some countries”, do you mean almost the rest of the entire world except for the USA?

Just to defend the US a little, when filing you would usually put folders in order by month or year first, not the day, unless you make a lot of subfolders. Year month day in a computer everything will line up in chronological order.

Day first is good for writing out a date like 5 May 23, because you don’t need commas to separate numbers.

I use the US way even though I mostly interact with people from outside of the US, because my boss prefers it, but also because if I switch it and it’s coming from the US it might be more confusing. We also use commas and periods the US way for numbers and money.

I did use day month year engraved in my wedding bands and my husband was annoyed by it. Lol. I chose that because they were made in Italy.