August is the second month of the financial year that began the previous July, sitting inside the financial year's first quarter, which runs from July to September. 15 August 2027 falls in the third calendar quarter of 2027 under the standard January-to-December system, with ten months still remaining before the 30 June financial year close.
Any deadline or bill payment due on Sunday 15 August 2027 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.
2027 has 365 days on the calendar. Leap years add a single extra day to February, giving those years 366 days instead of 365 and shifting the day-of-year number for every date from March onward by one compared with an ordinary year. This is the only irregularity in the length of the Australian calendar year.