Здравствуйте, netch80, Вы писали:

N>Но если их устраивает 23-й месяц — их проблемы.

Да, в данном случае, надо полагать, даже американцам будет догадаться нетрудно. Но во многих других случаях, а именно когда день месяца не превышает 12, могут и не угадать.

https://langster.org/en/blog/how-to-write-dates-in-english

Most Common Date Formats in English
The most common way for writing dates in English is to use day/month/year format (also denoted as DD/MM/YYYY). For example, if you were writing the date for the fifth of January , 2022, you would write it as 05/01/22.

However, there are also other ways to write dates in the English language. Americans use the month/day/year format – again, in a purely numerical form. This way, the same date, January fifth, would be written as 01/05/2022.

Another way to write the date in English is to add the day of the week first, followed by the day and then the month. So, the same date would be written as Friday, 5 January 2022.

And finally, you can use the international standard for writing dates in English – write the year first, followed by the month and then the day (also known as YYYY/MM/DD format). This way, the same date would be written as 2022/01/05.

Note that the numerical format of date writing is generally used informally or when there’s limited space. If you choose the all-numeric date format, there are always two slashes or hyphens to separate the parts of the date – one between the day and month, and another one between the month and year.