Whale migration season runs along much of the eastern and western coastlines through May, one of the seasonal markers of the Australian mid-year. 29 May 2028 falls inside this stretch, as days continue shortening ahead of the winter solstice the following month and the ski season's opening in the Snowy Mountains and Victorian Alps not far behind it.
A public holiday landing on a Monday produces a three-day weekend together with the preceding Saturday and Sunday, one of the two most common long-weekend patterns on the Australian calendar. Monday 29 May 2028 falls on this day of the week, at the start of a standard five-day working stretch that runs through to Friday of the same week.
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.