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 3 June 2029 carries the public holiday in six jurisdictions and not in the other two, one of the clearest state-by-state splits on the calendar.
Retail, hospitality, healthcare and emergency services rosters regularly schedule staff to work on Sundays as part of standard shift patterns that do not follow the Monday-to-Friday week. 3 June 2029 falls on Sunday, a working day for these shift-based industries even though it sits outside the standard working-day count above.
The working-day count on this page excludes both weekend days and any public holiday declared for the state selected, so the same date in 2029 can show a different total depending on which state's calendar applies to 3 June. Interstate businesses need to check more than one state's list before setting a national deadline.