First Day Of Winter 2024 Australia Time. The winter solsitice is both the shortest day of the year and also the longest night.  — the first day of winter 2024 is on the 21 st june in australia.

 — when is the 2024 winter solstice?  — this happens once a year in each hemisphere, with the northern hemisphere’s winter solstice occurring in late december and the southern hemisphere’s winter solstice taking place in late june.