ANZAC Day falls on the fixed date of 25 April, marked nationwide with dawn services regardless of which day of the week it lands on. 9 April 2028 falls inside the same 30-day month, alongside Easter, which moves from year to year but falls within or close to April in most years across the Australian calendar.
Any deadline or bill payment due on Sunday 9 April 2028 moves to the following Monday under standard business-day rules, since Sunday sits outside the working week this page counts by default. This convention applies consistently across contracts, invoices and statutory deadlines throughout Australia, regardless of which state or territory is involved.
The quarter containing 9 April 2028 is based on the calendar year running January to December, a separate system from the Australian financial year, which runs from 1 July to 30 June and splits into its own four quarters. Businesses often track both systems side by side, one for tax filings and one for calendar-year planning.