This Week In Australia: Week Number Exploration

what week number is it in australia

In Australia, the current week number is typically displayed according to the local time in the capital city and the country's calendar rules. The Australian government identifies Monday as the first day of the week, though there is some disagreement among the general population, with some considering Sunday to be the first day. The date and time in Australia are commonly recorded using the day-month-year format and the 12-hour clock, although the 24-hour format is used in certain cases, such as with some public transport operators.

Characteristics Values
Current week number in Australia Week 26 (as of Monday, June 22, 2025)
First day of the week Monday (as per the Australian government)
Last day of the week Sunday
Week format Monday to Sunday
Number of weeks in a year 52 weeks
Maximum week in 2025 Week 52
Date and time format Day-month-year (19 June 2025)
Clock format 12-hour clock (11:58 pm)

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The Australian calendar rules

The first week of the year is the week that contains January 1st. There are 52 weeks in a year, though this can increase to 53 in some years. The weeks are counted from this first week, with the highest week number in a year being either 52 or 53.

In Australia, the date and time are most commonly recorded using the day–month–year format (e.g. 19 June 2025) and the 12-hour clock (e.g. 11:58 pm). The month–day–year format (June 19, 2025) is also used, often in magazines, schools, newspapers, advertisements, video games, news, and TV shows. The numeric-only form of this format (06/19/2025) is rarely used. The Australian government recommends using the 12-hour clock, except where the 24-hour clock is more practical, such as in travel or with some public transport operators.

When referring to weeks, Australians typically refer to the last day of the week, either the Friday in a business context or the Sunday in other instances. Week numbers are not often used, but they may appear in numeral-only form in some business diaries.

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Week number listing

Week numbers in Australia follow the country's calendar rules, with Monday being the first day of the week and Sunday being the last. The first week of the year contains January 1st. The number of weeks in a year is typically 52, but it can sometimes be 53.

Week 25:

Monday, June 16, 2025, to Sunday, June 22, 2025.

Week 26:

Monday, June 23, 2025, to Sunday, June 28, 2025.

Week 27:

Monday, June 29, 2025, to Sunday, July 5, 2025.

Week 28:

Monday, July 6, 2025, to Sunday, July 12, 2025.

Week 29:

Monday, July 13, 2025, to Sunday, July 19, 2025.

This week number listing provides a snapshot of the current year in Australia, with each week represented by its number and corresponding dates.

It is worth noting that while the Australian government identifies Monday as the first day of the week, there is some disagreement among the general population, with some considering Sunday as the first day instead. Week numbers are not commonly used in Australia, except in some business diaries.

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Date and time notation

In Australia, dates are most commonly recorded using the day–month–year format (19 June 2025) and the 12-hour clock (11:58 pm). The month–day–year format (June 19, 2025) is also used, especially in mastheads of magazines, schools, newspapers, advertisements, video games, news, and TV shows. The numeric-only month–day–year format (06/19/2025) is rarely used.

When expressing dates in numerals and words, the conventional sequence is 'day month year'. For dates in body text, use numerals for the day and year and spell out the name of the month. Don’t include a comma or any other punctuation. For example, use '19 June 2025' instead of 'June 19, 2025'.

The Australian government recommends using the 12-hour clock (11:58 pm), except where the 24-hour clock is more helpful in context, such as in travel, scientific fields, and the military. The government also recommends using a colon as the separator between the hour and minute; however, a full stop is still used in some contexts.

Weeks are usually identified by the last day of the week, either Friday in business ("week ending 19/1") or Sunday in other contexts ("week ending 21/1"). Week ending is often abbreviated to "W/E" or "W.E.". Week numbers, such as "the third week of 2007", are not often used, but may appear in some business diaries in numeral-only form (e.g., "3"). The ISO 8601 week notation (e.g. 2025-W25) is not widely understood.

The International Organization for Standardization (ISO) develops and publishes the international standard for dates and time format – the ISO 8601 series. Australia and New Zealand have adopted this international standard, which is particularly useful for exchanging date and time information across time zones in a recognised format. The ISO 8601 date format (2025-06-19) is recommended by the Australian government for use in international communication and is also commonly used in software.

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Day–month–year format

In Australia, the date is typically written in the day–month–year format. For example, the date 19 June 2025 would be written as 19 June 2025, with the day leading. This format is also used in the United Kingdom and New Zealand.

The Australian government identifies Monday as the first day of the week, consistent with the Common Locale Data Repository (CLDR) since October 2021. However, there is some disagreement among the general population over whether Monday or Sunday is the first day of the week.

Weeks are usually identified by their ending date, either Friday in business contexts (e.g. "week ending 19/1") or Sunday in other contexts (e.g. "week ending 21/1"). Week ending is often abbreviated to "W/E" or "W.E."

The first week of the year in Australia is the week that contains 1 January. The number of weeks in a year is typically 52, but it can be 53. For example, 2025 has 52 weeks.

As of June 2025, it is week 25 in Australia, which runs from Monday, 16 June 2025, to Sunday, 22 June 2025.

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First day of the week

There is variation in the way the first day of the week is determined in Australia. While Monday is the first official day of the week according to the ISO standard, which Australia follows, many Australians also consider Sunday to be the first day of the week.

Monday as the First Day of the Week

Monday is the official first day of the week in Australia, in accordance with the ISO standard. This is an international standard, with other countries that follow this convention including Europe, the Middle East, Russia, and New Zealand. The ISO standard was developed in 1946, with the advent of industrialization and a five-day working week. The designation of Monday as the first day of the week is also practical, as it is the first day of the working week for many, and most things get into gear on this day.

Sunday as the First Day of the Week

Despite the official designation of Monday as the first day of the week, many Australians consider Sunday to be the first day. This is a convention that was more prevalent in the past, particularly in the 1980s and 1990s, and has been influenced by the United States, where Sunday is commonly considered the first day of the week. This idea has infiltrated Australia through television and software. Additionally, Sunday is considered the first day of the week in the Christian faith, as it is the day of rest, and the day of Jesus' resurrection.

Frequently asked questions

As of June 2025, Australia is in week 25.

The Australian government identifies Monday as the first day of the week and Sunday as the last. The first week of the year is the week that contains January 1st.

There are usually 52 weeks in a year, but sometimes there are 53.

Weeks are commonly referred to by their ending date, either the Friday in a business context or the Sunday in other contexts. For example, "week ending 19/1".

No, Australia does not widely use the ISO 8601 system, where weeks start on Mondays. Australia follows its own calendar rules, with Monday as the first day of the week.

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