NAIDOC Week is held in the first full week of July, a nationally recognised observance of Aboriginal and Torres Strait Islander history, culture and achievements. 4 July 2027 falls inside the same 31-day month as this observance, marked in workplaces, schools and communities across the country with events and ceremonies throughout the week.
Any deadline or bill payment due on Sunday 4 July 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.