School Term 3 ends toward the close of September or the start of October, depending on the state. 8 September 2030 falls inside this final stretch of Term 3, ahead of the short holiday break before Term 4 begins, the last school term of the calendar year for Australian students before the long summer break in December.
A public holiday that falls on a Sunday sits inside the weekend rather than beside it, and whether a substitute day off applies to the following Monday depends on the specific holiday and the state. Sunday 8 September 2030 falls on this day of the week, at the close of the weekend, immediately before the working week resumes.
2030 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.