When Is The Shortest Day 2024 Australia. Australia is about to endure its shortest day of the year as the annual winter solstice marks the astronomical calendar’s beginning of winter. The winter solsitice is both the shortest day of the year and also the longest night.

The sun will set earlier each day into december, culminating in the shortest day of the year, or the winter solstice. (janie barrett) (supplied nine) it began at 6.51am aest today for the southern hemisphere.