Winter Solstice 2024 Sydney. When is the 2024 winter solstice? Winter solstice — is the day of the year when the sun passes through the southernmost point of the ecliptic in the northern hemisphere (or through the northernmost point in the southern hemisphere).

In the southern hemisphere, it will occur on june 20 at 20:51 gmt (4:51 p.m. The winter solstice is the shortest day and longest night of the year after which the days begin to get longer and the nights get shorter.