December is the busiest trading month of the year for retail and hospitality, with Christmas shopping and the summer sales season running through most of the 31-day month. 13 December 2028 falls inside this peak trading period, in the run-up to the two fixed public holidays that close out the year.
The Ekka public holiday in greater Brisbane is held on a Wednesday during the Royal Queensland Show each August, one of the few recurring public holidays fixed to this day of the week. Wednesday 13 December 2028 falls on the same weekday as this regional observance, which applies only within greater Brisbane and not to the rest of Queensland.
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 2028 can show a different total depending on which state's calendar applies to 13 December. Interstate businesses need to check more than one state's list before setting a national deadline.