Mid-year school holidays run for two weeks somewhere across July in every state, splitting the school year's second half from its first. 21 July 2028 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.
Friday 21 July 2028 is the last working day of the standard Monday-to-Friday week, the fifth and final working day before the weekend begins. A public holiday landing on this day of the week joins directly onto the Saturday and Sunday that follow it, forming a three-day weekend without using any annual leave.
2028 has 366 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.