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. 29 December 2028 falls inside this peak trading period, in the run-up to the two fixed public holidays that close out the year.
Some employers close early or run a shortened day on Friday, ahead of the weekend that follows. 29 December 2028 falls on this day, the last of the five working days counted in the total shown above for its week, immediately before Saturday and Sunday begin the two-day break most standard working arrangements observe.
2028 has 366 days on the calendar. Leap years add a single extra day to February, giving those years 366 days instead of 365 and shifting the day-of-year number for every date from March onward by one compared with an ordinary year. This is the only irregularity in the length of the Australian calendar year.