Mid-year school holidays run for two weeks somewhere across July in every state, splitting the school year's second half from its first. 15 July 2030 falls inside July, the coldest month of the year across the southern states and the peak of the ski season further south in the Snowy Mountains and Victorian Alps.
Monday 15 July 2030 is the first working day of its week. Any bill, deadline or rostered task set for the preceding Saturday or Sunday moves to this date under standard business-day rules, and the working-day count above treats it as day one of a fresh five-day working stretch that runs through to Friday, before the weekend resets the cycle again.
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.