Winter Solstice 2024 Dates Usa. In 2024, these are the astronomical dates and times for the start of each season: Winter solstice 2024 (beginning of astronomical winter) on the day of the winter (december) solstice, the sun passes through the southernmost point of the ecliptic, that is, as far as.

This page shows the precise dates of the equinoxes and solstices for the current year and for future years, up to 2029. It marks the shortest day and longest.