The international standard recommends writing the date as year, then month, then the day: YYYY-MM-DD. So if both the Australian and American used this, they would both write the date as 2019-02-03.

Where do you write the date in a letter?

Addresses and dateBegin with your address in the top-right corner of the page.Immediately, below this include the date.Below this, on the left hand side of the page, comes the name and address of the person that you are writing to - the recipient of the letter.