23 January 2028 sits in the middle of the Australian summer, when the southern states run hot and dry with bushfire risk at its seasonal peak. The tropical north sits inside its wet season, part of the cyclone season that runs from November through to April every year. Daylight saving stays in effect in New South Wales, Victoria, South Australia, Tasmania and the ACT for the whole of January, keeping evenings light well past eight in the evening across those five states.
Any deadline or bill payment due on Sunday 23 January 2028 moves to the following Monday under standard business-day rules, since Sunday sits outside the working week this page counts by default. This convention applies consistently across contracts, invoices and statutory deadlines throughout Australia, regardless of which state or territory is involved.
A public holiday that falls on a Monday or a Friday produces a three-day weekend without using any annual leave, which is why long-weekend planning around 23 January 2028 depends on which day of the week the nearest public holiday falls on. A midweek holiday delivers no such automatic extension, though many workers bridge it with a single day of leave.