The United States is one of the few countries that use “mm-dd-yyyy” as their date format–which is very very unique! The day is written first and the year last in most countries (dd-mm-yyyy) and some nations, such as Iran, Korea, and China, write the year first and the day last (yyyy-mm-dd).

Does the day or year come first on expiration dates?

Read the numbers after the letter as the date of the month and the year in which the item was produced. For example, if a code reads "D1519," that means April 15, 2019. Many products might have a closed code as well as an open-date code.

What is the format of expiration date?

In short, all financial transaction cards should show the card's expiration date in one of the following two formats: “MM / YY” or “MM-YY” — with the first being the by far most common for credit cards. This represents two digits for the month and two for the year — for example, “02 / 24”.