Summer begins on 1 December, and December carries the two biggest fixed public holidays of the year: Christmas Day on 25 December and Boxing Day on 26 December. 28 December 2029 falls inside this 31-day month, at the height of the Australian retail and travel calendar for the year.
A public holiday on a Friday pairs directly with the Saturday and Sunday that follow it, producing one of the two most common three-day-weekend patterns on the Australian calendar. Friday 28 December 2029 falls on this day of the week, the last working day of its standard Monday-to-Friday week before the weekend begins.
Contracts and legal deadlines that specify calendar days count every day from 28 December 2029 including weekends and public holidays, while deadlines specified in working or business days count only the days this page includes in its working-day total. The difference between the two conventions can shift a deadline by several days once weekends and holidays are counted.