Western Australia marks King's Birthday on the last Monday of September, months after every other state observes the same public holiday name. 8 September 2029 carries this public holiday only in Western Australia, with the rest of the country working through an ordinary day under a completely different holiday calendar for the same occasion.
Saturday 8 September 2029 is a weekend day under the standard Monday-to-Friday working pattern and does not count toward the working-day total shown above. Retail, hospitality, healthcare and emergency services staff commonly work rostered shifts on this day regardless of the standard week that applies to most other industries and workplaces across the country.
The week number shown for 8 September 2029 counts full weeks from the start of 2029, a figure used in payroll cycles, rostering and any planning done in weekly or fortnightly blocks rather than by calendar month. Businesses running fortnightly pay runs rely on this figure to track which of the two alternating pay weeks a date falls in.