The Royal Queensland Show, known as the Ekka, runs in Brisbane through August every year, bringing a public holiday for the greater Brisbane area on the Wednesday of the show. 21 August 2029 falls inside the same 31-day month as this regional observance, which does not apply outside greater Brisbane and leaves the rest of Queensland working an ordinary day.
Tuesday 21 August 2029 carries no recurring public holiday of its own outside the first Tuesday of November, when the Melbourne Cup applies in metropolitan Melbourne. On every other date, this day of the week runs as a standard working day across the country, counted fully in the working-day total above.
The week number shown for 21 August 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.