King's Birthday falls on the second Monday of June in New South Wales, Victoria, South Australia, Tasmania, the Northern Territory and the ACT. Western Australia and Queensland do not observe the holiday on this date, so 14 June 2030 carries the public holiday in six jurisdictions and not in the other two, one of the clearest state-by-state splits on the calendar.
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 14 June 2030 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 14 June 2030 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.