Date and time notation in Australia most commonly records the date using the day-month-year format (14 September 2021), while the ISO 8601 format (2021-09-14) is increasingly used for all-numeric dates. The time can be written using either the 12-hour clock (10:11 am) or the 24-hour clock (10:11).

What is the most common date format in the world?

Basic components of a calendar date for the most common calendar systems: D – day. M – month. Y – year.